Guide To Purchasing Glasses Online By. Spex4less.COM PREMIUM EYEWEAR

Size: px
Start display at page:

Download "Guide To Purchasing Glasses Online By. Spex4less.COM PREMIUM EYEWEAR"

Transcription

1 Guide To Purchasing Glasses Online By Spex4less.COM PREMIUM EYEWEAR 1

2 Index Introduction 3 Guarantee 3 Obtaining A Copy Of Your Prescription 4 How To Choose A Good Fitting Frame 5 Searching The Website For Your Perfect Pair 6 Choosing Lenses 7 Your Prescription 12 Summary 15 2

3 Introduction Over the last 10 years thousands of people have been turning to the internet looking for online suppliers of prescription glasses. The prices of prescription eyewear online is at an all time low and savings of up to 75% off the normal retail price is not unheard of. We have made this guide to help you avoid any pitfalls and decide upon a frame and lens that will suit, fit and work, so saving you valuable time and money! Spex4less has successfully been supplying prescription eyewear online for over 10 years and has struck the perfect balance between price, quality, service & guarantee. All four of which, are required to ensure you are totally thrilled with any purchases from Spex4less. This guide has been created to help you understand your vision and to help you make informed decisions about which frame and lens combinations to choose to give you the best possible vision. Guarantee Before we start I'd like to point out that since 2004 Spex4less has offered the same iron-clad guarantee. Although every effort has been made to help you choose the perfect pair first time, we understand that occasionally you may not be 100% happy with your chosen frames or lenses. For this reason alone all Spex4less purchases are covered by our famous 100% satisfaction guarantee. This means that if, for any reason, you are not 100% happy with your vision, frames or lenses we will offer you a free exchange for another pair or full refund, and this includes prescription errors made by your optician! 3

4 Obtaining A Copy Of Your Prescription When you go for your eye test your optician should automatically give you a copy of your prescription. If for any reason they do not give you a copy, simply ask for one and they should oblige as it is their duty to give every patient a copy of their prescription at the time of the eye exam. Lost Your Prescription? If you have mislaid your prescription you may call or visit your optician and simply ask for a copy. Please note if calling by phone they may send you the prescription by post or ask you to visit the store. Once you have a copy of your prescription you're ready to start choosing your frames and lenses. As you make your 1st purchase from Spex4less we will automatically create you an account and save your prescription on file for future use. However, if you prefer, you may create an account and save your prescription for future purchases or to simply keep your prescription details safe. You can log in to view and print your prescriptions at any time. 4

5 Choosing A Good Fitting Frame Frame sizes are usually in the format and are usually printed on either the arm of the frame or the back of the bridge. In this example this means that the width of the lens itself is 53mm the bridge distance or distance between the lenses is 18mm and the arm length is 135mm. HOWEVER, comparing these measurements is not the BEST way to obtain a good fitting frame online. On the Spex4less web site we have included further measurements that are FAR easier to understand and ensure a much better result. To find a good fitting frame measure the total width of your existing glasses including the parts that protrude from lenses and compare to the total width of the glasses on our website. With this measurement you can give or take a couple of millimetres. On the website if you filter our glasses based on width we will also display glasses within 2mm of the width measurement that you enter. You can use the other measurements such as depth, diameter, bridge and arm length as a general guide. However, it is unlikely that you will match all of them exactly to your existing glasses. 5

6 Searching The Website For Your Perfect Pair At the top of each page on the website we have organised our glasses in to categories such as Men's Glasses, Ladies Glasses, Designer Glasses and many more. Simply click on the category link that most appeals to you. Once you've arrived at the category page you'll see that we have many frames to choose from which are all displayed along with the available colour options, photograph and size details. On the right hand side of each category page you'll see "Filter Options". Simply select your requirements and non matching frames will instantly be filtered out of the category. Each time you switch categories the filter will reset. As you browse glasses you may find a few pairs that you like. When you find a frame that you like click the "Add To Shortlist" link. This will add frames to your shortlist page where you can view the frames you like side by side. Once you've decided on a pair simply click the "more details" or "order" link from your shortlist. 6

7 Choosing Lenses Lenses come in many flavours and again, at first, things can become a little confusing. But don t worry. We will explain them all in detail so that you can understand how to choose the best lens option for you. Firstly each lens has what we call a "Refractive Index" The way in which the refractive index is calculated is not important at this time. What is important is what it means to the thickness of the lens. Most people think that when we say a 1.6 lens that this means it is going to be 1.6mm thick, THIS IS WRONG. Basically the higher the number the thinner the lens will be. This is because materials that bend light more than others have a higher Refractive index and hence a shorter or longer focal length. This means that the same correction and focal length can be achieved from less lens (material) making them thinner. Here is a key to choosing the best Refractive Index. Standard Plastic CR39 (1.5) Website Option: 1.5 Standard Ideal for most prescriptions (prescriptions with powers stronger than and will start to look thick, powers between the two will look fine). Plastic (1.6) Website Option: 1.6 Thin An ideal option for prescriptions up to and down to lenses are aprox 23% thinner than standard plastic. Prescription outside this range will start to look thick. Plastic (1.67) Website Option: 1.67 Very Thin 7

8 Probably the most popular of the thinner lens options. Aprox 15% thinner than the 1.6 and 25% flatter. Ideal for prescriptions up to and down to prescription outside this range will look thick. Plastic (1.74) Website Option: 1.74 Thinnest The thinnest plastic lens available on the market. Aprox 50% thinner than the 1.5 standard plastic and 30% lighter than the glass equivalent. Great for mid to high prescriptions. Lens Types (Use) There are also many different styles of lenses. Lenses for single vision correction e.g. Distance or Reading, to Bifocals and Varifocals for the correction of both distance and reading within one pair of glasses. Distance Single vision lenses for distance use are usually prescribed for all round day to day use such as driving, watching the TV and generally seeing in the distance. You may be able to read wearing your distance glasses. If you require separate Reading glasses, Bifocals or Varifocals there will be other information on your prescription such as a "Reading Addition" or "Near/Add" value Reading Single vision lenses for reading use only and are prescribed for reading. You will not be able to see in the distance wearing reading glasses. Intermediate 8

9 Single vision lenses for computer (intermediate) use. In some cases you may require "Intermediate" glasses for use at a computer. In this case you will need your "Inter Add" or "Intermediate Addition" value from your optician. Bifocals Bifocals are distance glasses with a visible "D" shaped reading segment on the lens. These allow you to see in the distance through the top of the lens and read through the bottom (Not all of our glasses are suitable for bifocal lenses. If this is the case the Bifocal option will not be available). Varifocals Varifocals look just like single vision lenses. However, they blend gradually from your distance vision in the top through your intermediate prescription and into your reading prescription at the bottom. Varifocals allow you to focus at all distances between distance and near (Not all of our glasses are suitable for bifocal lenses. If this is the case the Bifocal option will not be available). NOTE: Varifocals require accurate fitting measurements for them work correctly. When you order a frame with Varifocal lenses from Spex4less we will first send you the frame with dummy lenses fitted along with a pre paid return envelope and an instructional letter. We require an eye level photograph of you wearing your new glasses (instructions on how to do this are included in the pack). Simply have the photograph taken and return the photo along with the frame using the enclosed pre paid envelope. 9

10 Once we receive the returned pack we can accurately scale the photo, take the required measurements and start to produce your Varifocal lenses. We require approximately 7 days to turn around your order once we receive your returned pack. Tints All of our lenses come with a scratch resistant coating as standard. Clear Standard clear scratch resistant lenses Sunglasses Grey / Brown When you select this option we will tint your lenses as sunglasses in the selected colour. When you order a Sunglasses tint we also UV protect the lens before it is tinted. Transitions Grey / Brown Transition lenses are clear indoors but darken in the presence of UV. The brighter the sunlight the darker they go. These give you clear lenses indoors and automatically tint outdoors giving you the correct amount of protection for the varying light conditions. Transitions also contain UV protection and activate faster and darker when ordered with an Anti-Reflective lens coating. Please note: Standard Transitions do not react very well behind a car windscreen as modern windscreens filter out the UV required to activate the Transitions lenses. For use behind a car windscreen choose Transitions XTRActive lenses which react moderately behind a car windscreen. Polarized Grey / Brown 10

11 Polarized lenses are sunglasses lenses just like the Grey / Brown tint options above. However, polarized lenses have a filter inside the lens which filters out any light that has been reflected from a flat surface such as a wet road, car bonnet or water. Polarized filters are not available in a clear lens, they are always made as sunglasses and also contain UV protection as standard. Coatings Anti-Reflective Anti-Reflective is a clear coating. There are many benefits to an Anti- Reflective coating. Firstly they are far more aesthetically pleasing as they reduce the amount of light reflecting off your lenses especially when having your photograph taken. Other benefits include: Helpful for computer users and for night driving, People can see your eyes and not a patch of light, Reduces "Power rings" visible rings inside the lens in high prescriptions which is caused by light constantly bouncing back and forth within the lens due to total internal reflection. UV Coating A UV coating to protect your eyes from UV damage (note these are clear lenses that block UV). there is no need to add a UV coating if purchasing transitions, polarized or sunglasses tints as this will be applied as standard. Use this option if you require clear lenses with UV protection. 11

12 Your Prescription *Please pay particular attention here* Your prescription may seem a little confusing at first glance but it really is quite simple to understand. Firstly, every prescription follows the same format wherever you are in the world. There may be a few variations and abbreviations, but I will explain them later. Let s describe what it all means first. Each prescription will have a right and left value for the correction of your vision within the following boxes: "SPH" (sphere). The correction for long or short sightedness. "CYL" (cylindrical). The correction for an Astigmatism. "AXIS" The axis that the correction for the Astigmatism needs to be set at. Sometimes an Add or Addition, always "+" value is included for us to decipher your reading prescription, but only if you require glasses for both distance and for reading. In some rarer cases Prism and Base is used for the correction of double vision. On our website you can select your prescription from drop down boxes so that you can simply copy the details you have on your written prescription. *VERY IMPORTANT Do not fall for the most common mistake!* The single most common mistake when entering prescriptions online is selecting a "+"value instead of a "-" value or vice versa. Your prescription may consist of both "+" AND "-" Values. 12

13 For example:- SPH (Spherical) Will consist of a + or power (unless 0.00) in 0.25 steps. EG, -0.25, , -0.75, -1.00, and so on. CYL (Cylindrical) May consist of a + or power in 0.25 steps. EG, -0.25, -0.50, -0.75, , and so on. AXIS Will consist of a numerical value from 0 to 180, BUT, only when you have a CYL value. Note: Usually opticians will write the "-" and "+" signs above the value. ADD / Addition / Reading Addition Will only consist of a + value as is it is what it says on the tin, an "addition". We add this value to your distance prescription if you need reading glasses as well as distance or for bifocals & varifocals. Note: Some opticians will write out your complete reading prescription underneath your complete distance prescription. In this case you can switch our website form to the two row format and simply enter the values from the bottom row in to the form. You can do this by clicking on the link "My Prescription Looks Different" COMMON ABBREVIATIONS Plano, 0.00, Infinity - All mean the same thing - nothing! Or No correction is needed. 13

14 DS Dioptre Spheres Usually appears under the CYL box indicating that there is no astigmatism (No CYL value). However, this can sometime appear after a reading addition. OD Means your right eye. OS Means your left eye. PD Pupillary Distance is the distance between the centre of one pupil to the centre of the other in millimetres. I would like to take a moment to talk about your PD as this has caused much debate in dispensing glasses online. Opticians generally will not give this to you as they will probably figure that you wish to buy your glasses online and not from them. In most cases, except for those with particularly high prescriptions, we can calculate this usually within a millimetre or two using experience and certain order criteria such as your gender and the size of frame you have chosen etc. HOWEVER, it is very simple to measure your own PD. The best way is to have a friend help you. Look at a point in the distance whilst your friend takes the measurement in millimetres, if you wanted to be super accurate measure the left side of the left pupil to the left side of the right pupil. 14

15 Summary Don't worry if you've not been able to take all this in at once. Each option on our website has a little help icon or a more information link next to it. When you click this icon a box will open up a box with relevant information from this guide. The internet is reaching further and further in to our daily lives as more and more products become available online. Buying your glasses online is surely going to be an exciting and hassle free experience now that you've taken time to read this guide and you could also save yourself a small fortune. Enjoy Your New Glasses And Wear Them With Pride. 15

5 Easy Steps to Purchasing Glasses Online

5 Easy Steps to Purchasing Glasses Online 5 Easy Steps to Purchasing Glasses Online 1. How to choose a frame that fits Frame sizes are usually in the format 50 20 In this case, this means that the lens diameter is 50mm and the bridge distance

More information

Neither eye has a Prism/Base value so these fields should be left as "Not applicable".

Neither eye has a Prism/Base value so these fields should be left as Not applicable. 1.1 Prescription Examples Below are the examples from various high street opticians. All prescriptions are same; the only difference is they are presented in different way. Prescription contains enough

More information

Lens Types. Single Vision. Lined Bi-Focal. Lined tri-focals

Lens Types. Single Vision. Lined Bi-Focal. Lined tri-focals Lenses It can be helpful to think of very basic lens forms in terms of prisms. As light passes through a prism it is refracted toward the prism base. Minus lenses therefore resemble two prisms apex to

More information

EYEWEAR. JUST FOR YOU.

EYEWEAR. JUST FOR YOU. EYEWEAR. JUST FOR YOU. EYECARE THAT S AS INDIVIDUAL AS YOU. Thank you for entrusting our practice with your eyecare needs. We pride ourselves on maintaining the highest clinical standards and recommending

More information

ST INTERNATIONAL FINISHED SINGLE VISION STOCK LENSES CATALOGUE & PRICE LIST.

ST INTERNATIONAL FINISHED SINGLE VISION STOCK LENSES CATALOGUE & PRICE LIST. ST 2013 FINISHED SINGLE VISION STOCK LENSES CATALOGUE & PRICE LIST ST 14 Odem St, 5th floor Kiryat Matalon Petach Tikva, 49517 Israel Tel: 972-3-922-9070 Fax: 972-3-929-1310 Email: info@st-optics.com www.st-optics.com

More information

Practice Perception. Closing a Sale. Last Impression. Waiting Time / Down Time 10/20/2013. First Impressions

Practice Perception. Closing a Sale. Last Impression. Waiting Time / Down Time 10/20/2013. First Impressions First Impressions Patient Communication and Sales Strategies for Today's Environment Presented By Jay Binkowitz, President GPN 2013 Gateway Professional Network, LLC. All Rights Reserved You had me at

More information

Custom Solutions Catalog Prescription Corrected Solutions For Your Most Challenging Patients

Custom Solutions Catalog Prescription Corrected Solutions For Your Most Challenging Patients Custom Solutions Catalog Prescription Corrected Solutions For Your Most Challenging Patients Prescription Corrected Eyewear Page 2 Prescription Corrected Filters Page 4 Eschenbach Telescope Mounting Page

More information

LENSES. Materials, Types and Treatments. Mary E. Schmidt, ABOC, CPO

LENSES. Materials, Types and Treatments.  Mary E. Schmidt, ABOC, CPO LENSES Materials, Types and Treatments www.eyesystems.info Mary E. Schmidt, ABOC, CPO mary@eyesystems.info Single Vision Spherical in design All purpose, single focus, may be sphere or cylinder Rx s Aspheric

More information

LENSES. Materials, Types and Treatments. Single Vision. Aspherical Lens Forms

LENSES. Materials, Types and Treatments. Single Vision. Aspherical Lens Forms LENSES Materials, Types and Treatments www.eyesystems.info Mary E. Schmidt, ABOC, CPO mary@eyesystems.info Single Vision Spherical in design All purpose, single focus, may be sphere or cylinder Rx s Aspheric

More information

PART 3: LENS FORM AND ANALYSIS PRACTICE TEST - KEY

PART 3: LENS FORM AND ANALYSIS PRACTICE TEST - KEY PART 3: LENS FORM AND ANALYSIS PRACTICE TEST - KEY d 1. c 2. To determine the power of a thin lens in air, it is necessary to consider: a. front curve and index of refraction b. back curve and index of

More information

NHS/CORPORATE EYECARE

NHS/CORPORATE EYECARE 2017 SERVICES PRICE EYE EXAMINATION PRIVATE 25 Includes aftercare for 1 year EYE EXAMINATION & CONTACT LENSES ANNUAL CHECK UP / INITIAL FIT 50 50, of which 25 is redeemable against purchase (excluding

More information

Presbyopes Need Progressives

Presbyopes Need Progressives Training Guide Progressive Lenses Presbyopes Need Progressives Progressive lenses are an improvement in comfort, safety, appearance and convenience over traditional bifocals for most presbyopes. While

More information

SPHERE, CYLINDER, AXIS, and ADD Power: Why these four variables? Example Prescriptions: UNDERSTANDING A PRESCRIPTION SPHERICAL LENSES 8/31/2018

SPHERE, CYLINDER, AXIS, and ADD Power: Why these four variables? Example Prescriptions: UNDERSTANDING A PRESCRIPTION SPHERICAL LENSES 8/31/2018 8/31/2018 UNDERSTANDING A PRESCRIPTION Speaker: Michael Patrick Coleman, COT & ABOC SPHERE, CYLINDER, AXIS, and ADD Power: Why these four variables? Example Prescriptions: +2.50 SPH Simple SPHERICAL Rx

More information

OPHTHALMIC MATERIALS

OPHTHALMIC MATERIALS Matriculation Number: DEPARTMENT OF VISION SCIENCES SESSION: 2005/2006 DIET: 1ST OPHTHALMIC MATERIALS VISP209 LEVEL 2 MODULE LEADER: DR G WALSH B.Sc./B.Sc. (HONS) OPTOMETRY JANUARY 2006 DURATION: 2HOURS

More information

PART 3: LENS FORM AND ANALYSIS PRACTICE TEST

PART 3: LENS FORM AND ANALYSIS PRACTICE TEST PART 3: LENS FORM AND ANALYSIS PRACTICE TEST 1. 2. To determine the power of a thin lens in air, it is necessary to consider: a. front curve and index of refraction b. back curve and index of refraction

More information

Vision to Educate. The Basics of optics. 10 essential pages

Vision to Educate. The Basics of optics. 10 essential pages Vision to Educate 10 essential pages Edition 2014 Introduction Edito If it is impossible to summarize the professionofopticianinabookletof12pages,wehave tried in this paper to provide enough information

More information

HOW WE LL PROCEED. I ll put up a statement. You guess the answer Yes no True-false. You Focus the Lensometer Using the Target Circles.

HOW WE LL PROCEED. I ll put up a statement. You guess the answer Yes no True-false. You Focus the Lensometer Using the Target Circles. HOW WE LL PROCEED I ll put up a statement Lensometers Don t Read Power Ed De Gennaro Midlothian, Virginia OPTICAL MYTHS, HALF TRUTHS AND FALSEHOODS You guess the answer Yes no True-false True! HOW A LENSOMETER

More information

About me. Fitting for Success: Understanding the Rx and Guiding the Patient to the Proper Frame. Myopia Hyperopia Astigmatic Presbyopia Cataract

About me. Fitting for Success: Understanding the Rx and Guiding the Patient to the Proper Frame. Myopia Hyperopia Astigmatic Presbyopia Cataract Fitting for Success: Understanding the Rx and Guiding the Patient to the Proper Frame By Tim Elinski About me 46 yrs experience in optical Graduated 1975 Health Optics Degree Certified in 1978 Fellow of

More information

ST INTERNATIONAL PRODUCT GUIDE FINISHED & SEMI-FINISHED

ST INTERNATIONAL PRODUCT GUIDE FINISHED & SEMI-FINISHED ST INTERNATIONAL PRODUCT GUIDE 2017 FINISHED & SEMI-FINISHED ST INTERNATIONAL Sector: Industry: Sub-Industry: Medical Device Optical Lenses/Ophthalmic Lenses Retail Services & Other St International is

More information

Eschenbach Low Vision Training Program

Eschenbach Low Vision Training Program Eschenbach Low Vision Training Program Module 5: Magnifying Spectacles Edited by: Thomas Porter, OD Asst. Professor & Director Low Vision Service St. Louis University, Dept. of Ophthalmology 2016 2015

More information

2014 Premium Lens MarketPulse Questionnaire

2014 Premium Lens MarketPulse Questionnaire 2014 Premium Lens MarketPulse Questionnaire How many locations are associated with your practice? 1-3 4 or more Thinking of your total gross dollar sales for 2013, did the percentage made up by spectacle

More information

For all your questions please contact:

For all your questions please contact: Export Catalogue 2009-2010 For all your questions please contact: Viktor Sipos (viktor.sipos@hoyalens.hu) export coordinator Mobile:+36/30-696-5926 Peter Stein (peter.stein@hoyalens.hu) export coordinator

More information

Important Notes: Construction Details of FX glasses for Left Hemianopes (c) 2006 by The N.I.R.E. Page 1

Important Notes: Construction Details of FX glasses for Left Hemianopes (c) 2006 by The N.I.R.E. Page 1 Construction Details for N.I.R.E. Type-2 Field-Expander Eyeglasses for People with Left *Homonymous* Hemianopsia or Bi-Temporal Hemianopsia... or Hemianopic-Monocular Vision ===========================================================================================

More information

PREMIUM LENSES WITH VARIABLE BASE CURVE

PREMIUM LENSES WITH VARIABLE BASE CURVE PREMIUM LENSES WITH VARIABLE BASE CURVE Inspired by nature - 1 - CONTENT THE ADVANCEMENT OF CAMBER CAMBER TECHNOLOGY Features and Properties Camber Benefits EXPLORING CAMBER LENS SERIES NATURAL NATURAL

More information

Tips for Dispensing Lenses Made from Trivex Material

Tips for Dispensing Lenses Made from Trivex Material Tips for Dispensing Lenses Made from Trivex Material INTERVIEW TECHNIQUES Lenses made from Trivex material are an excellent choice for nearly every lens wearer. Eyecare professionals can be more successful

More information

Concepts of Optics Quiz. 8. Spherical lenses focus along a single point; cylindrical lenses focus along a.

Concepts of Optics Quiz. 8. Spherical lenses focus along a single point; cylindrical lenses focus along a. Concepts of Optics Quiz 1. Prisms bend light from (apex/base) to (apex/base). 2. Prisms displace images in the direction of the (apex/base). 3. A (plus/minus) lens is convex. 4. A (plus/minus) lens diverges

More information

Where s my lens clock? Where s the base curve? F1 (front) or F2 (back) surface? Red or black scale?

Where s my lens clock? Where s the base curve? F1 (front) or F2 (back) surface? Red or black scale? As a paid speaker I have not been sponsored by any companies mentioned in this lecture I am not a consultant to nor an employee of any ophthalmic company. Robert Lee, OD Western University College of Optometry

More information

Why choose Contact Lenses?

Why choose Contact Lenses? Why choose Contact Lenses? Flexible packages, whatever your lifestyle. We can fit lenses to correct 99% of prescriptions! Ask about our free trial today. Anyday/Everyday. WHY CHOOSE DUNCAN AND TODD? Because

More information

Why choose Contact Lenses?

Why choose Contact Lenses? Why choose Contact Lenses? Flexible packages, whatever your lifestyle. We can fit lenses to correct 99% of prescriptions! invernessopticians.co.uk Ask about our free trial today. Anyday/Everyday. She wears

More information

Eye Protection for Chainsaw Carvers. Kevin Treat The Sawptician

Eye Protection for Chainsaw Carvers. Kevin Treat The Sawptician Eye Protection for Chainsaw Carvers Kevin Treat The Sawptician Topics Human Physical Senses Factors Comprising Human Senses Identification of Safety Eyewear Safety Frame Designs Lens Materials Lens Designs

More information

DISPENSING THE HIGHER OR UNUSUAL RX FITTING, EDGING & DISPENSING. Sponsored by the CAO/CCOA Program

DISPENSING THE HIGHER OR UNUSUAL RX FITTING, EDGING & DISPENSING. Sponsored by the CAO/CCOA Program DISPENSING THE HIGHER OR UNUSUAL RX FITTING, EDGING & DISPENSING OAO APRIL 2017 MARILYN SMITH RO Sponsored by the CAO/CCOA Program DO NOT BE AFRAID Often the higher the Rx dioptre value, the less lens

More information

Multiple-Choice Questions

Multiple-Choice Questions Multiple-Choice Questions A Board Review Manual 1. A +5.ooD hyperope, with a PD (inter-pupillary distance) of 5 centimeters, is mistakenly given glasses which are decentered outward by 5mm OU. The total

More information

COLOURS SEE LIFE IN COLOUR

COLOURS SEE LIFE IN COLOUR COLOURS SEE LIFE IN COLOUR Contents 5 About Optimum Colours 6 Solid Tints 7 Graduated Tints 8 Fashion Tints 9 Mirror and Split Mirror Coatings 10-11 Polarised Lens Colours 12 1.74 Index Polarised Lens

More information

UNITY VIA PROGRESSIVE LENSES TECHNICAL WHITE PAPER

UNITY VIA PROGRESSIVE LENSES TECHNICAL WHITE PAPER UNITY VIA PROGRESSIVE LENSES TECHNICAL WHITE PAPER UNITY VIA PROGRESSIVE LENSES TECHNICAL WHITE PAPER CONTENTS Introduction...3 Unity Via...5 Unity Via Plus, Unity Via Mobile, and Unity Via Wrap...5 Unity

More information

12.1. Human Perception of Light. Perceiving Light

12.1. Human Perception of Light. Perceiving Light 12.1 Human Perception of Light Here is a summary of what you will learn in this section: Focussing of light in your eye is accomplished by the cornea, the lens, and the fluids contained in your eye. Light

More information

OPTICS BASIC. Course Objectives WELCOME!!! Refractive Error and How Spectacle Lenses Correct It. Basic Anatomy. Hyperopia - Far Sighted PTICS:

OPTICS BASIC. Course Objectives WELCOME!!! Refractive Error and How Spectacle Lenses Correct It. Basic Anatomy. Hyperopia - Far Sighted PTICS: WELCOME!!! Course Objectives BASIC OPTICS PTICS: Refractive Error and How Spectacle Lenses Correct It Developed by: Susan I. Klacik, ABOC To review the basic elements of refractive error, and demonstrate

More information

Do you want your lenses with or without blue light protection?

Do you want your lenses with or without blue light protection? Do you want your lenses with or without blue light protection? The most complete near-clear protection against blue light. Potential Benefits* Relief From Digital Eye Strain Filters Light without distorting

More information

Technology Reference guide. March 2011

Technology Reference guide. March 2011 Technology Reference guide March 2011 2 Lens Series Progressive lenses were first patented in 1907 and later refined in 1959 into the basic progressive lens design still widely used today. This conventional

More information

Semi-Finished Lens Processing & Edging Guide and Technical Data

Semi-Finished Lens Processing & Edging Guide and Technical Data Processing & Edging Introduction This processing and technical lens data guide applies to the Trilogy Aspheric Single Vision and Image, FT28, and Spherical Single Vision lenses. Trilogy Lens Designs 1.

More information

continuing education course Approved by the American Board of Opticianry

continuing education course Approved by the American Board of Opticianry continuing education course Approved by the American Board of Opticianry Average Math for the Above Average Dispenser National Academy of Opticianry 8401 Corporate Drive #605 Landover, MD 20785 800-229-4828

More information

2017 PRODUCT CATALOG EFFECTIVE JAN 1, 2017

2017 PRODUCT CATALOG EFFECTIVE JAN 1, 2017 2017 PRODUCT CATALOG EFFECTIVE JAN 1, 2017 TABLE OF CONTENTS. INTRODUCTION LENS SERIES LIST SINGLE VISION LENSES BIFOCAL/TRIFOCAL LENSES NEAR VISION LENSES PROGRESSIVE LENSES X700 CONTOUR ADAPTIVE DESIGN

More information

3. Study the diagram given below and answer the questions that follow it:

3. Study the diagram given below and answer the questions that follow it: CH- Human Eye and Colourful World 1. A 14-year old student is not able to see clearly the questions written on the blackboard placed at a distance of 5 m from him. (a) Name the defect of vision he is suffering

More information

Lenses- Worksheet. (Use a ray box to answer questions 3 to 7)

Lenses- Worksheet. (Use a ray box to answer questions 3 to 7) Lenses- Worksheet 1. Look at the lenses in front of you and try to distinguish the different types of lenses? Describe each type and record its characteristics. 2. Using the lenses in front of you, look

More information

What s a Corneal GP Lens?

What s a Corneal GP Lens? Slide 1 What s a Corneal GP Lens? Richard Dorer NCLEC Blanchard Contact Lens Inc. 800-367-4009 x 131 richarddorer@gmail.com www.blanchardlab.com Slide 2 Endorsements I am a paid representative and consultant

More information

Copyright 2016, Phernell Walker, BSB, ABOM

Copyright 2016, Phernell Walker, BSB, ABOM Trouble hooting the Difficult Prescription Trouble hooting the Difficult Prescription Phernell Walker, II, BB, ABOM National peaker Brief Biography: Phernell Walker, II, BB, NCLC, ABOM Master in Ophthalmic

More information

EYEWEAR IS THE OUTFIT AND THE OUTFIT IS THE ACCESSORY.

EYEWEAR IS THE OUTFIT AND THE OUTFIT IS THE ACCESSORY. L E N S S T Y L E G U I D E Transitions Signature lenses in graphite green fully activated and unactivated 1INSPIRATION IS ALL AROUND US Style is everywhere and can sometimes come from unexpected places.

More information

Learn Connect Succeed. JCAHPO Regional Meetings 2017

Learn Connect Succeed. JCAHPO Regional Meetings 2017 Learn Connect Succeed JCAHPO Regional Meetings 2017 Refractometry JCAHPO Continuing Education Program Phoenix and Scottsdale, AZ Craig Simms BSc, COMT, CDOS, ROUB Director of Education, IJCAHPO Program

More information

Chapter 3: LENS FORM Sphere

Chapter 3: LENS FORM Sphere Chapter 3: LENS FORM Sphere It can be helpful to think of very basic lens forms in terms of prisms. Recall, as light passes through a prism it is refracted toward the prism base. Minus lenses therefore

More information

Slab Off or Bicentric Grinding

Slab Off or Bicentric Grinding Slab Off or Bicentric Grinding What is This? A slab-off is a technique in which base-up prism is ground on lower half of the lens in either the most minus or least plus. The finished product looks as if

More information

055_056_varilux_divider.indd 55 VARILUX VARILUX

055_056_varilux_divider.indd 55 VARILUX VARILUX 055_056_varilux_divider.indd 55 VARILUX VARILUX 26/02/13 16:53 055_056_varilux_divider.indd 56 26/02/13 16:53 VARILUX RANGE Natural vision Ultimate vision Varilux S2 Varilux S Design Wider angle of vision

More information

LIGHT-REFLECTION AND REFRACTION

LIGHT-REFLECTION AND REFRACTION LIGHT-REFLECTION AND REFRACTION Class: 10 (Boys) Sub: PHYSICS NOTES-Refraction Refraction: The bending of light when it goes from one medium to another obliquely is called refraction of light. Refraction

More information

VARILUX FITTING GUIDE GUIDELINES FOR SUCCESSFULLY FITTING VARILUX LENSES

VARILUX FITTING GUIDE GUIDELINES FOR SUCCESSFULLY FITTING VARILUX LENSES VARILUX FITTING GUIDE GUIDELINES FOR SUCCESSFULLY FITTING VARILUX LENSES WELCOME We are pleased to present this guide which outlines the essential steps for successfully fitting progressive lenses to your

More information

SEIKO Superior. Most Advanced & Precisely Customized, 100% Internal Free-Form Technology

SEIKO Superior. Most Advanced & Precisely Customized, 100% Internal Free-Form Technology SEIKO Superior Most Advanced & Precisely Customized, 100% Internal Free-Form Technology SEIKO Superior Precisely Customized Vision Advanced Optimized Performance for All Wearers The remarkably precise

More information

BLUE LIGHT: MIND YOUR PATIENT S EYES... AND YOURS!

BLUE LIGHT: MIND YOUR PATIENT S EYES... AND YOURS! BLUE LIGHT: MIND YOUR PATIENT S EYES... AND YOURS! UV light is dangerous for the eyes, blue light as well. As eyes are priceless, Essilor has developed Airwear MELANINE lenses. What s new in sun protection

More information

New Product Spotlight. Sensity Dark and Shine Expanding Opportunity in the Photochromic Market ABO Technical Level II. By Deborah Kotob, ABOM

New Product Spotlight. Sensity Dark and Shine Expanding Opportunity in the Photochromic Market ABO Technical Level II. By Deborah Kotob, ABOM New Product Spotlight Sensity Dark and Shine Expanding Opportunity in the Photochromic Market ABO Technical Level II By Deborah Kotob, ABOM Objectives 1. Learn the market challenges and opportunities for

More information

Product Reference Guide

Product Reference Guide 37.5mm Axis Verification "V" 5.00-0.25-1.75-1.50-1.25-0.75-0.50-3.75-3.50-3.25-2.75-2.50-2.25-8.50 7.50 - SunRx Prescription Polarized Semi-Finished Single Vision Polarized Single Vision (Gray, Brown and

More information

Page 1

Page 1 Rebecca Johnson, CPOT, COT, COE My glasses fog and I have to clean them too often. Frame Adjust tilt or increase vertex distance. If the frame is rubbing against the cheeks or eyebrows, consider a smaller

More information

Dispensing 1. Prepared by Hatem S.H. Barhoom MHSC (clinical optometry) UKM Malaysia

Dispensing 1. Prepared by Hatem S.H. Barhoom MHSC (clinical optometry) UKM Malaysia Dispensing 1 Prepared by Hatem S.H. Barhoom MHSC (clinical optometry) UKM Malaysia Syllabus Ophthalmic lenses Uses of spectacle lenses Measurement of lenses power Neutralisation Lensmeter Uses Laying out

More information

CHAPTER 11 The Hyman Eye and the Colourful World In this chapter we will study Human eye that uses the light and enable us to see the objects. We will also use the idea of refraction of light in some optical

More information

Exemplar for Internal Achievement Standard Level 2

Exemplar for Internal Achievement Standard Level 2 Exemplar for internal assessment resource Physics 2.2A for Achievement Standard 91169 Exemplar for Internal Achievement Standard 91169 Level 2 This exemplar supports assessment against: Achievement Standard

More information

Light: Reflection and Refraction Light Reflection of Light by Plane Mirror Reflection of Light by Spherical Mirror Formation of Image by Mirror Sign Convention & Mirror Formula Refraction of light Through

More information

Better than sunglasses. Filter sunglasses from Multilens

Better than sunglasses. Filter sunglasses from Multilens Better than sunglasses Filter sunglasses from Multilens Why Filter Sunglasses and not ordinary sunglasses? Most sunglasses have been designed with one priority they should look trendy. Many manufacturers

More information

From consumer s point of view: Consumers have become very demanding. They want best quality lenses. At best prices. Vision Rx Lab

From consumer s point of view: Consumers have become very demanding. They want best quality lenses. At best prices. Vision Rx Lab From consumer s point of view: Consumers have become very demanding They want best quality lenses At best prices There is a great demand for a spectacle lens which has good optical benefits and is also

More information

Create a number line. Determining cylinder power

Create a number line. Determining cylinder power Create a number line 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 111 10 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Lynn Lawrence, CPOT, ABOC Insert 3 hash marks between

More information

NLS Finished Stock Lens Catalogue 2017

NLS Finished Stock Lens Catalogue 2017 NLS Finished Stock Lens Catalogue 2017 www.norville.co.uk Welcome to Norville Lens Supplies NLS is the wholesale lens division of the Norville Group, with over 25 years experience of supplying stock finished

More information

Optical Perspective of Polycarbonate Material

Optical Perspective of Polycarbonate Material Optical Perspective of Polycarbonate Material JP Wei, Ph. D. November 2011 Introduction Among the materials developed for eyeglasses, polycarbonate is one that has a number of very unique properties and

More information

ERK-9000 Auto Ref/Kertometer

ERK-9000 Auto Ref/Kertometer 1 THE INNOVATIVE DELIVERS PRETESTING DATA YOU CAN COUNT ON. THIS CUTTING-EDGE AUTOREFRACTOR/KERATOMETER GATHERS THE DATA YOU NEED QUICKLY AND ACCURATELY. The integrated seamlessly with the entire Ezer

More information

CUSTOM SOLUTIONS PROGRAM

CUSTOM SOLUTIONS PROGRAM Volume 15 CUSTOM SOLUTIONS PROGRAM Prescription Correctable Absorptive Filters, Eyewear and Telescopes Eschenbach offers a wide assortment of prescription correctable products so you can provide customized

More information

Agenda. 1. EyeLT Step 1 2. EyeLT Step 2 3. EyeLT Step 3

Agenda. 1. EyeLT Step 1 2. EyeLT Step 2 3. EyeLT Step 3 EyeLT STEP 1-3 Agenda 1. EyeLT Step 1 2. EyeLT Step 2 3. EyeLT Step 3 Rodenstock unique selling propositions. EyeLT Step 1 EyeLT Step 2 EyeLT Step 3 + + Superior, clear vision from far to near. Up to 25%

More information

Vision 1. Physical Properties of Light. Overview of Topics. Light, Optics, & The Eye Chaudhuri, Chapter 8

Vision 1. Physical Properties of Light. Overview of Topics. Light, Optics, & The Eye Chaudhuri, Chapter 8 Vision 1 Light, Optics, & The Eye Chaudhuri, Chapter 8 1 1 Overview of Topics Physical Properties of Light Physical properties of light Interaction of light with objects Anatomy of the eye 2 3 Light A

More information

2. The radius of curvature of a spherical mirror is 20 cm. What is its focal length?

2. The radius of curvature of a spherical mirror is 20 cm. What is its focal length? 1. Define the principle focus of a concave mirror? The principle focus of a concave mirror is a point on its principle axis to which all the light rays which are parallel and close to the axis, converge

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A plane mirror is placed on the level bottom of a swimming pool that holds water (n =

More information

Applied Optics. , Physics Department (Room #36-401) , ,

Applied Optics. , Physics Department (Room #36-401) , , Applied Optics Professor, Physics Department (Room #36-401) 2290-0923, 019-539-0923, shsong@hanyang.ac.kr Office Hours Mondays 15:00-16:30, Wednesdays 15:00-16:30 TA (Ph.D. student, Room #36-415) 2290-0921,

More information

The Hyman Eye and the Colourful World

The Hyman Eye and the Colourful World The Hyman Eye and the Colourful World In this chapter we will study Human eye that uses the light and enable us to see the objects. We will also use the idea of refraction of light in some optical phenomena

More information

NEW. AT LISA tri 839MP and AT LISA tri toric 939MP from ZEISS The innovative trifocal IOL concept providing True Living Vision to more patients

NEW. AT LISA tri 839MP and AT LISA tri toric 939MP from ZEISS The innovative trifocal IOL concept providing True Living Vision to more patients Premium Trifocal MICS OVDs IOLs NEW AT LISA tri 839MP and AT LISA tri toric 939MP from ZEISS The innovative trifocal IOL concept providing True Living Vision to more patients Trifocal toric IOL The moment

More information

HUMAN EYE AND COLOURFUL WORLD

HUMAN EYE AND COLOURFUL WORLD HUMAN EYE AND COLOURFUL WORLD VERY SHORT ANSWER TYPE QUESTIONS [1 Mark] 1. Which phenomenon is responsible for making the path of light visible? Answer. Tyndall effect. 2. State one function of iris in

More information

FOR IMMEDIATE RELEASE

FOR IMMEDIATE RELEASE FOR IMMEDIATE RELEASE Contact Courtney Myers Mary O Hara Havas PR Transitions Optical 412 456 4707 tel 800 533 2081 tel 7431 ext courtney.myers@havasww.com mohara@transitions.com Transitions Optical Honors

More information

Topic 6 - Lens Filters: A Detailed Look

Topic 6 - Lens Filters: A Detailed Look Getting more from your Camera Topic 6 - Lens Filters: A Detailed Look Learning Outcomes In this lesson, we will take a detailed look at lens filters and study the effects of a variety of types of filter

More information

25 cm. 60 cm. 50 cm. 40 cm.

25 cm. 60 cm. 50 cm. 40 cm. Geometrical Optics 7. The image formed by a plane mirror is: (a) Real. (b) Virtual. (c) Erect and of equal size. (d) Laterally inverted. (e) B, c, and d. (f) A, b and c. 8. A real image is that: (a) Which

More information

Finished Stock Lens. Catalogue 2015

Finished Stock Lens. Catalogue 2015 Finished Stock Lens Catalogue 2015 www.norville.co.uk Welcome to Norville Lens Supplies NLS is the stock finished wholesale division of the Norville Group with over 20 years experience of supplying stock

More information

AT LISA tri 839MP and AT LISA tri toric 939MP from ZEISS The innovative trifocal IOL concept providing True Living Vision to more patients

AT LISA tri 839MP and AT LISA tri toric 939MP from ZEISS The innovative trifocal IOL concept providing True Living Vision to more patients Premium Trifocal MICS OVDs IOLs AT LISA tri 839MP and AT LISA tri toric 939MP from ZEISS The innovative trifocal IOL concept providing True Living Vision to more patients The moment you help your patients

More information

ORLAB Technical Note

ORLAB Technical Note ORLAB Technical Note Ophthalmic Product Series Issue 6 A series of technical notes to aid understanding of standards, reasons for failure to comply and hints on avoiding the problem. Differences between

More information

Characteristic Primary Color Primary Pigment. Colors red, green, blue magenta, cyan, yellow

Characteristic Primary Color Primary Pigment. Colors red, green, blue magenta, cyan, yellow Light Energy Chapter 14 You can use a compare and contrast table to show how two or more items are alike and how they are different. Look at the example shown below for primary colors and primary pigments.

More information

Class-X Assignment (Chapter-10) Light-Reflection & Refraction

Class-X Assignment (Chapter-10) Light-Reflection & Refraction Class-X Assignment (Chapter-10) Light-Reflection & Refraction Q 1. How does light enable us to see an object? Q 2. What is a concave mirror? Q 3. What is the relationship between focal length and radius

More information

Transitions SOLFX Brand Overview

Transitions SOLFX Brand Overview Transitions SOLFX Brand Overview January 24, 2011 Paul Castner, Director of Transitions Championship and Transitions SOLFX Marketing Static Sunwear vs. Adaptive Sunwear Footnote style LIGHT CHANGES Title

More information

Refraction Training Manual

Refraction Training Manual INTERNATIONAL CENTRE FOR EYE HEALTH Refraction Training Manual 2006 Mr S. Mayer & International Centre for Eye Health Contents Page 1. Introduction 2. Basic Optics 3. Vision and Visual Acuity 4. Refractive

More information

Eyeglasses Ministry Training by. Last revised:

Eyeglasses Ministry Training by. Last revised: Kendall Optometry t Ministry, i Inc Eyeglasses Ministry Training by Holland Kendall Preparation for Ministry Last revised: March 5, 2011 Eyeglasses Ministry Mission To spread the Word of our Lord and Savior

More information

Fitting Manual Use with kerasofttraining.com

Fitting Manual Use with kerasofttraining.com Fitting Manual Use with Fitting Manual: Contents This fitting manual is best used in conjunction with KeraSoft IC online training. To register, please visit www. 01 Kerasoft IC Design - Outlines the KeraSoft

More information

LIGHT REFLECTION AND REFRACTION

LIGHT REFLECTION AND REFRACTION LIGHT REFLECTION AND REFRACTION REFLECTION OF LIGHT A highly polished surface, such as a mirror, reflects most of the light falling on it. Laws of Reflection: (i) The angle of incidence is equal to the

More information

EDITION 2017/2018 FILTERS CATALOGUE

EDITION 2017/2018 FILTERS CATALOGUE EDITION 2017/2018 FILTERS CATALOGUE DHG FILTERS UV FILTERS & POLARIZING FILTERS NEUTRAL DENSITY FILTERS SPECIAL EFFECT FILTERS ACHROMATIC CLOSE-UP LENS 03 04 06 08 09 DIGILINE FILTERS UV FILTERS & POLARIZING

More information

CERTIFICATE IN DISPENSING OPTICS (CDO) Term-End Examination June, 2015

CERTIFICATE IN DISPENSING OPTICS (CDO) Term-End Examination June, 2015 No. of Printed Pages : 8 OAH-005 CERTIFICATE IN DISPENSING OPTICS (CDO) Term-End Examination June, 2015 OAH-005 : PROGRESSIVE LENS Time : 90 Minutes Maximum Marks : 30 Note : (i) (ii) (iii) (iv) There

More information

Soft CL Multifocals Design and Fitting. Soft Multifocal Lens Designs. Issues Surrounding Multifocals. Blur Interpretation. Simultaneous Vision Designs

Soft CL Multifocals Design and Fitting. Soft Multifocal Lens Designs. Issues Surrounding Multifocals. Blur Interpretation. Simultaneous Vision Designs Soft CL Multifocals Design and Fitting Mark Andre, FAAO Associate Professor of Optometry Pacific University Mark Andre, FAAO is affiliated with CooperVision, as a consultant. Issues Surrounding Multifocals

More information

30 Lenses. Lenses change the paths of light.

30 Lenses. Lenses change the paths of light. Lenses change the paths of light. A light ray bends as it enters glass and bends again as it leaves. Light passing through glass of a certain shape can form an image that appears larger, smaller, closer,

More information

Unit Two: Light Energy Lesson 1: Mirrors

Unit Two: Light Energy Lesson 1: Mirrors 1. Plane mirror: Unit Two: Light Energy Lesson 1: Mirrors Light reflection: It is rebounding (bouncing) light ray in same direction when meeting reflecting surface. The incident ray: The light ray falls

More information

You need to have your eyes checked. You should have your eyes checked every 2 years

You need to have your eyes checked. You should have your eyes checked every 2 years Having an Eye Test You need to have your eyes checked Your doctor or optometrist will tell you if you need them checked more often. Having your eyes checked is called an eye examination, an eye test or

More information

VCT1101 Ophthalmic Materials I (2 hrs. per week) Course Outline and Reading Assignment

VCT1101 Ophthalmic Materials I (2 hrs. per week) Course Outline and Reading Assignment New York City College of Technology of the City University of New York Department of Vision Care Technology Prof. Kimberly Strickler VCT1101 Ophthalmic Materials I (2 hrs. per week) Course Outline and

More information

2/4/2016. Spectacle Lens Update: Everything you need to know. Impact of Good Vision. Spectacle Lens Update

2/4/2016. Spectacle Lens Update: Everything you need to know. Impact of Good Vision. Spectacle Lens Update : Everything you need to know Michael C. Vitale, ABOM, LDO, NCLC Technical Director & Lens Division Liaison The Vision Council mvitale@thevisioncouncil.org Michael Vitale has no financial interests to

More information

Wonderlab The Statoil Gallery

Wonderlab The Statoil Gallery Wonderlab The Statoil Gallery and maths s Age (s) Topic 7 11 LIGHT INFORMATION 11-14 Location WONDERLAB: THE STATOIL GALLERY LEVEL 3, SCIENCE MUSEUM LONDON 1 What s the science? What more will you wonder?

More information

Make a Refractor Telescope

Make a Refractor Telescope Make a Refractor Telescope In this activity students will build, and observe with, simple refractory telescope providing an interactive introduction to light, lenses and refraction. LEARNING OBJECTIVES

More information

Goldmann vs. Humphrey

Goldmann vs. Humphrey Get Ready: Visual Field Correction and Calibration Pitfalls Correction For the Humphrey & Goldmann Visual Fields Goldmann vs. Humphrey When performing visual fields, you must take the patients correction

More information