Where s my lens clock? Where s the base curve? F1 (front) or F2 (back) surface? Red or black scale?
|
|
- Ira Simpson
- 6 years ago
- Views:
Transcription
1 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 OptoWest 2012 This course reviews common pt. scenarios that may present in a typical optometric practice. In a busy practice it is often practical to delegate to your optical staff. This course will review optics based problem solving that you may want to delegate or find you may need to handle on your own. Your pt. complains of distorted vision through her new SV glasses she bought outside the practice. Lines are bent and doors look crooked. Your optician wants you to troubleshoot this complaint. What are you thinking you should check first? The Rx and PD checks out within ANSI stds. The frame is straight on the face. Where s my lens clock? Where s the base curve? F1 (front) or F2 (back) surface? Red or black scale?
2 A Lens Can Be Made From a Variety of Front Curves 6D 5D 4D 3D -3D -2D -1D 0D Steepest Flattest A 65 year old female presents with complaints of her bifocals "never fitting right". Her lenses have always been heavy and thick. She seldom drives at night due to glare from oncoming car headlights. She is retired and enjoys gardening and has just started taking piano lessons. Rx: OD X 180 Add OS X 180 Recommendations? Determine the center thickness of this Rx in CR 39 Rx: OD X 180 Add OS X 180 CR 39 lenses in a 54 eyesize metal frame Lens edge thickness 2mm How thick will her OD lens be in Polycarbonate? S A = (Fh 2 ) 2000(n 1) S 1 = 4.5(27 2 ) 2000( ) = 2.79mm Are we done? How much thinner will my lenses be if? Don t use millimeters, use % Numerator = current lens n excess over 1 Denominator new lens n excess over 1 CR 39 to Polycarbonate? = 498 =.85% as thick or % thinner Keep or delegate? ttotal = sag + tedge sag
3 You have purchased a patternless lens edger and want to process most of your SV Rxs inhouse. How can you save $ on lens blanks (uncuts)? Use the smallest uncut possible to make the glasses (minimum blank size or MBS) Calculate the MBS given the following data: A = 52 mm B = 48 mm DBL = 18 mm ED = 57 mm Patient s PD = 62 Frame PD Pt. PD = decentration total Add to frame A or ED which ever is larger (A +DBL) PD = 8, ED + 8 = order 65mm uncut Your pt. likes the frame from the frame board however it is too large (60 eyesize). You don t have the correct 48 eyesize on your frame board and have to order it. How do you measure the correct bifocal height if the frame is too big or small? Should you have the pt. come back when the correct frames arrives and then again when the glasses are ready? Rather than inconveniencing the pt., use the FRAMES book Find the frame and compare the B measurements If you don t have book access compare the eyesizes or A. Take the A difference and divide by 2 Add this number to the final seg hgt. if the original frame was too small and subtract if the original frame was too large
4 Frame in office is a 60 eyesize. Your measured BF hgt. is 24mm. Frame needed is a 48 eyesize. What BF hgt. will you order? mm mm mm mm Keep or delegate? You forgot to measure the BF height and the pt. has left the office. What do you do now? You forgot to measure the BF height and the pt. has left the office. What do you do now? Use the 3 below trick Take ½the B and subtract 3mm. Use the 3 below trick Take ½the B and subtract 3mm. B = 40.0 (39.5) ½B = = 17mm Actual measured hgt = 18mm NOT BAD! Keep or delegate? The new pt. states he wears vertical prism in his PAL Rx. Your optician asks you to check the Rx for vertical prism. How do you do it?.
5 Now what??.. Horizontal? Vertical? OD OS OD Horizontal? OD Vertical?. OS Horizontal? OS Vertical? vertical, 0 horizontal 2. 0 vertical, 3 ½ base out 3. 2 base up, 0 horizontal 4. 2 base down, 0 horizontal 5. 2 vertical, 3 ½ base out Keep or delegate? OD OS
6 A patient s wears an Rx of OD x 030 and OS x 060. He complains of having to shut one eye when he reads. He states that the words look double. The EOMs, pupils, CT, Rx power and axis check out OK. Pt. PD = 64mm DBOC = 68mm Any ideas what s wrong? OD x 030 OS x 060 What is the difference in power in the horizontal meridian? OD ( 3.00)( sin 2 theta) = OS ( 1.00)(sin 2 theta) = Is there an easier way vs. using trig. functions? 090 (100%) 090 (100%) 060 (75%) OD x 030 = PD = 64 OS x 060 = DBOC = 68 How much prism is induced and what is the base direction? Do you instruct your optician to dispense the Rx or send it back as a lab redo? (50%) 030 (25%) (0%) 68 Δ R = (0.2)(+2.25) = 0.45 Δ base out Δ L = (0.2)(+2.00) = 0.40 Δ base out 59 y.o. Hispanic female presents with cc of blurred vision OU both far/near Hx of DM x 25yrs, PDR w/ PRP and vitrectomy 30Δ AXT distance and near New PAL Rx OD x /30 OS x /40 Add OU 20/40 Prescribing considerations?
7 option for >1.5Δ imbalance (.5Δ steps) large Δ imbalance can be corrected for (up to 15Δ SV, 12Δ RD) creates BU thus placed on the most minus (least plus) lens Reverse slab off is preferred due to lower cost and quicker processing OD OS Slab off Reverse slab off Calculate the Slab off / reverse Slab off Which lens should it be ordered on? What would the pt. complain about if you ordered it on the wrong lens? When the glasses are received how do you know the prism is correct? OD power in the vertical meridian? OS power in the vertical meridian? Unless stated otherwise assume pt. looks 10mm below distance OC to read (reading level) Net vertical lens power difference is 6D. Δ = F x d 6 x 1 = 6Δ Slab comes in ½Δ increments Reverse slab off of 6.00 goes on least minus lens thus OD Cheaper and faster processing from lab OD OS Slab off PROCEDURE A Hope so I trust the lab Let the pt. try it PROCEDURE B Check it Use the correct instrument and procedure Reverse slab off
8 Lens surface: F1 or F2? Clock scale: black or red? I forgot the next step Something to do with these A... B Visualize the appearance of the lenses Anticipate the pts. reaction Clinical pearl: Slab off on PALs not recommended Ruins the no line appearance Patients rarely understand (confidence) Have to refund $ or remake the glasses ($) 59 y.o. Hispanic female presents with cc of blurred vision OU both far/near Hx of DM x 25yrs, PDR w/ PRP and vitrectomy 30Δ AXT distance and near Why do we prescribe prism (slab off) in the first place? Is slab off indicated in this case? Keep or delegate?
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 informationA Checklist for Managing Spectacle Lens Complaints. Presented By: Raymond P. Dennis, M.A. (Ed.) Middlesex Community. Patient Complaints
SPEAKER FINANCIAL DISCLOSURE STATEMENT Raymond P. Dennis has occasionally received honoraria from Essilor of America to present generic continuing education presentations similar to this one. He is a member
More informationSlab 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 informationSoft 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 informationAbout 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 informationSPHERE, 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 informationDISPENSING 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 informationContact Lenses Didn t Work! Now What? Evaluation and Treatment of Aniseikonia
Contact Lenses Didn t Work! Now What? Evaluation and Treatment of Aniseikonia Andrew J Toole, OD, PhD, FAAO The Ohio State University College of Optometry Disclosure Statement: Nothing to disclose Aniseikonia
More informationLENSES. 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 informationLENSES. 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 informationConcepts 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 informationGuide To Purchasing Glasses Online By. Spex4less.COM PREMIUM EYEWEAR
Guide To Purchasing Glasses Online By Spex4less.COM PREMIUM EYEWEAR 1 Index Introduction 3 Guarantee 3 Obtaining A Copy Of Your Prescription 4 How To Choose A Good Fitting Frame 5 Searching The Website
More informationPage 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 informationPART 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 informationCustom 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 informationUNITY 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 information3/31/2016. Presented by: Bob Alexander, ABOM/NCLE-AC Lens Consultant Vision Ease. Everywhere and Sportwrap; Understanding Digital Technology
Everywhere and Sportwrap; Understanding Digital Technology Presented by: Bob Alexander, ABOM/NCLE-AC Lens Consultant Vision Ease Digital - Design and Surfacing VE Digital Designs Optimization Compensation
More informationMultiple-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 informationPART 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 informationDispensing 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 informationCopyright 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 informationVCT1101 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 informationHOW 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 informationOPHTHALMIC 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 informationLens 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 informationWEARABLE WIRELESS ADAPTIVE REFRACTOR
B H WEARABLE WIRELESS ADAPTIVE REFRACTOR REVOLUTIONIZING SUBJECTIVE REFRACTION A vision that inspires yours REVOLUTIONIZING THE MEASUREMENT OF SUBJECTIVE REFRACTION VisionFit is an innovative electronic,
More informationORLAB 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 informationProduct 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 informationSpectacle Lens Material Decision Tree
Spectacle Lens Material Decision Tree We will investigate Lens material considerations gravity value Impact strength Lens material technical data comparisons and selling ophthalmic lenses Disclaimer Refraction
More informationPractice 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 informationPREMIUM 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 informationImportant 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 information5 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 informationCreate 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 informationFax: (800) Phone: (800) Fax: (800)
Fax: (800)628-9819 Phone: (800)525-1274 Fax: (800)628-9819 www.laramyk.com Calculation Technologies Laramy-k is proud to offer the most flexible solution with the possibility to access all the different
More informationVARILUX 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 informationSemi-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 informationTORIC AND MULTIFOCAL GP AND SCL PRESCRIBING Edward S. Bennett OD, MSEd, FAAO
1 2 3 4 5 6 1 TORIC AND MULTIFOCAL GP AND SCL PRESCRIBING Edward S. Bennett OD, MSEd, FAAO l Dr. Bennett is a consultant to the Contact Lens Manufacturers Association SOFT TORICS: Good Candidates l Astigmatic
More informationAstigmatism. image. object
TORIC LENSES Astigmatism In astigmatism, different meridians of the eye have different refractive errors. This results in horizontal and vertical lines being focused different distances from the retina.
More informationGoldmann 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 informationLow Vision Math Made Easy for the Primary Care Optometrist
Low Vision Math Made Easy for the Primary Care Optometrist Karl Citek, OD, PhD, FAAO I. Introduction Case Example Esther, 82 yowf, AMD OS>OD, referral from another ECP Habitual Rx: OD +1.25-1.00 x030 OS
More informationOPTICS 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 informationEschenbach 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 informationTrouble Shooting Guide for Ortho-K lenses
Trouble Shooting Guide for Ortho-K lenses The basic design of the third generation e Lens for Orthokeratology 1. Optic Zone (Base curve, Compression zone, BC) width 5.6 to 6.4mm 2. Fitting curve (second
More informationIntroducing an enlightened scleral lens designed specifically for regular corneas.
ZEN TM RC scleral lenses Introducing an enlightened scleral lens designed specifically for regular corneas. NEW ZEN RC ALL THE BENEFITS OF ZENLENS SCLERAL LENSES IN A SMALLER DIAMETER. The Zen RC lens
More information10/25/2017. Financial Disclosures. Do your patients complain of? Are you frustrated by remake after remake? What is wavefront error (WFE)?
Wavefront-Guided Optics in Clinic: Financial Disclosures The New Frontier November 4, 2017 Matthew J. Kauffman, OD, FAAO, FSLS STAPLE Program Soft Toric and Presbyopic Lens Education Gas Permeable Lens
More informationLight: 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 informationdigital lens designs
digital lens designs Lens Calculation Technology Lens Design Software Technology Evolution Camber Digital Ray-Path Surface Power Calculation Technologies Lens Design Portfolio IOT Lens Design Portfolio
More informationINTRODUCTION TO LENSOMETRY
INTRODUCTION TO LENSOMETRY Susan Brummett, COMT Little Rock, Arkansas January 2007 Terminology 1 Lensmeter instrument designed to measure the prescription of an optical lens. Also defined as an instrument
More informationChapter 29/30. Wave Fronts and Rays. Refraction of Sound. Dispersion in a Prism. Index of Refraction. Refraction and Lenses
Chapter 29/30 Refraction and Lenses Refraction Refraction the bending of waves as they pass from one medium into another. Caused by a change in the average speed of light. Analogy A car that drives off
More informationHIGH INDEX Scratch Resistant Coating: Both Sides Both Sides Both Sides Both Sides Both Sides Both Sides Both Sides Both Sides
HIGH INDEX Lens Material H74 or B74 Aspheric* Eyecode* Fit* 360* Autograph II As Worn* Spectrum * C ASPHERIC- SV SV 360 EC SV 360 FIT SV 360 AUTO II SV AW SPECTRUM SV SV C X 4D* X 4D X Fit* X FIT X Design*
More informationPatient information. Your options for cataract treatment Enjoy clear vision at all distances with multifocal IOLs
Patient information Your options for cataract treatment Enjoy clear vision at all distances with multifocal IOLs Bring your vision into focus Good vision is a major contributor to the quality of life.
More informationG.P. MULTIFOCAL LENSES: A FITTING WORKSHOP
G.P. MULTIFOCAL LENSES: A FITTING WORKSHOP Susan J. Gromacki, OD, MS, FAAO, FSLS Daniel G. Fuller, OD, FAAO, FSLS Cornea, Contact Lenses and Refractive Technologies Section The American Academy of Optometry
More informationCopyright Indizen Optical Technologies
DEFINITION OF FREEFORM Free form is a manufacturing technology that allows cutting and polishing arbitrary surfaces A lens is free-form if at least one of its surfaces is made with free form technology
More informationSpecialty Catalog. Canada's specialty lab Revision 2
Specialty Catalog Canada's specialty lab Revision 2 Extreme prescriptions manufactured using the current state of the art CNC machines as well as more traditional machines. Specialty Rx catalog Index Introduction
More informationLearn 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 informationChapter 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 informationAn Interesting Use of Bausch and Lomb s KeraSoft IC Lens
An Interesting Use of Bausch and Lomb s KeraSoft IC Lens Nate Schlotthauer, OD 2012 Michigan College of Optometry Cornea and Contact Lens Resident Introduction: The KeraSoft IC lens, introduced to the
More informationSatellite Tracer LT-1200 / 980
Satellite Tracer LT-1200 / 980 Satellite Tracer LT-1200 / 980 Confidently performs around all curves The new LT-980 and LT-1200 tracers incorporate an advanced state-of-the-art and newly engineered tracing
More informationTips for selecting a useful stand magnifier
Tips for selecting a useful stand magnifier William L. Brown, O.D., Ph.D., F.A.A.O. Mayo Clinic Rochester, MN Ph: (507)284-4946 brown.william2@mayo.edu Learning Objectives Following the lecture the participant
More informationOptical 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 informationOptometry s Meeting. Tom Quinn s Disclosures. Shalu Pal s Disclosures. Multifocal Contact Lenses Made Simple 5/18/2015
Optometry s Meeting Multifocal Contact Lenses Made Simple Shalu Pal, O.D., F.A.A.O. Tom Quinn, O.D., M.S., F.A.A.O. Tom Quinn s Disclosures Alcon Allergan Alden Optical Bausch + Lomb CooperVision GPLI
More informationKODAK Unique DRO Progressive Lens BE UNIQUE IN YOUR MODERN WORLD
KODAK Unique DRO Progressive Lens BE UNIQUE IN YOUR MODERN WORLD NEW TECHNOLOGY UP CLOSE AND CLEAR Receive a fully-reinforced, reading area. KODAK Unique DRO Lens delivers a new level of near viewing with
More informationCUSTOM 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 informationTips for selecting a useful stand magnifier
Tips for selecting a useful stand magnifier William L. Brown, O.D., Ph.D., F.A.A.O. Mayo Clinic Rochester, MN Ph: (507)284-4946 brown.william2@mayo.edu Learning Objectives Following the lecture the participant
More informationVision 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 informationFundamentals of Progressive Lens Design
Fundamentals of Progressive Lens Design VisionCare Product News Volume 6, Number 9 September 2006 By Darryl Meister, ABOM Progressive Lens Surfaces A progressive addition lens (or PAL ) is a type of multifocal
More informationMultifocal Contact Lenses. Steps for Success. Disclosures. Patient Selection. Presbyopic Soft Contact Lenses: Options for Success
Disclosures Outside Consultant Presbyopic Soft Contact Lenses: Options for Success Precilens Coopervision Research Funds Bausch and Lomb Brooke Messer, OD, FAAO, FSLS Cornea and Contact Lens Institute
More informationIntroducing a lens that can take your scleral fitting to a higher plane.
Introducing a lens that can take your scleral fitting to a higher plane. Alden Optical s newest specialty lens has arrived: Zenlens, a mini-scleral, fully vaulting lens co-designed with Jason Jedlicka,
More informationABO Certification Training. Part II: Basic Optical Principles
ABO Certification Training Part II: Basic Optical Principles Metric System of Measurement One meter is equal to: 39.37 inches One inch is equal to: 25.4 millimeters (mm) One dollar is equal to: One meter
More informationUsing Orthotool Software
Using Orthotool Software OrthoTool 101010 (2008) Original Design with 5 Curves. You can just use the new version 2013 Toric RC, AC & PC only with OT 2008 so far Hyperopic ortho-k GP lens design Aspheric
More informationWhy Understand Lens Technology? Everything Evolves. Refined Mediocrity Is Still Mediocrity. Copyright: Phernell C. Walker, II, AS, NCLC, ABOM
Secrets to Designing Specialty Eyewear Contact Information: Phernell Walker, II, AS, Master in Ophthalmic Optics Phernell Walker, II, AS, Email: pureoptics@earthlink.net www.pureoptics.com (254) 338-7946
More informationSatellite Tracer LT-1200 / 980
Satellite Tracer LT-1200 / 980 Satellite Tracer LT-1200 / 980 Confidently performs around all curves The LT-1200 and LT-980 tracers incorporate an advanced state-of-the-art and newly engineered tracing
More informationSNC2D PHYSICS 5/25/2013. LIGHT & GEOMETRIC OPTICS L Converging & Diverging Lenses (P ) Curved Lenses. Curved Lenses
SNC2D PHYSICS LIGHT & GEOMETRIC OPTICS L Converging & Diverging Lenses (P.448-450) Curved Lenses We see the world through lenses even if we do not wear glasses or contacts. We all have natural lenses in
More information2017 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 informationOPTICS SPECIAL OPTICS FRAMES
OPTICS SPECIAL OPTICS FRAMES March 2017 It all started in a garage Multilens is a world-unique specialist company within the optical sector. We tailor optical solutions for every need. From the beginning,
More informationThe Optics of Mirrors
Use with Text Pages 558 563 The Optics of Mirrors Use the terms in the list below to fill in the blanks in the paragraphs about mirrors. reversed smooth eyes concave focal smaller reflect behind ray convex
More informationThe soft approach to RGPs
CET CONTINUING EDUCATION & TRAINING Sponsored by 1 CET POINT The soft approach to RGPs Part 3: don t let torics put you in a spin 46 Mark Tomlinson BSc (Hons), MCOptom, FBDO (Hons) Most practitioners acknowledge
More informationBetter Optics Deliver Clear, Consistent Vision
Better Optics Deliver Clear, Consistent Vision Learn how the PureVision2 family can satisfy patients and help build your practice. By Agustin Gonzalez, OD Learning What Patients Want The NSIGHT study provides
More informationMarco TRS Total Refraction System
Marco TRS-5100 Total Refraction System TRS-5100: Total Refraction System The TRS has a forehead position detector (blue LED) for reliable vertex measurements. Wide Visual Field (40 ) apertures provide
More informationPhernell Walker, MBA, ABOM Heart of America Eye Care Congress 2019
Progressive Thinking - Eliminate Past Negative Experiences with Progressive Lenses Phernell Walker, II, MBA, ABOM International Speaker & Author About the Speaker Phernell Walker, II, MBA, NCLC, ABOM Master
More information2017 PriceList ALL PRICES EDGED AND MOUNTED PER PAIR. Innovative Lenses for Independent Eye Care Professionals
2017 PriceList ALL PRICES EDGED AND MOUNTED PER PAIR Guide to Prairie Digital Progressive Designs Better Personalize Personalize adjust $168 Personalize inset good Harmonize Harmonize adjust $158 Harmonize
More informationAMERICAN NATIONAL STANDARD
ANSI Z80.1-2005 AMERICAN NATIONAL STANDARD for Ophthalmics Prescription Ophthalmic Lenses Recomendations OLA ANSI Z80.1-2005 (Revision of ANSI Z80.1-1999) American National Standard for Ophthalmics Prescription
More informationChapter 4 Assessment of Study Measures
Chapter 4: Assessment of Study Measures...2 4.1 Overview...2 4.1.1 Overview of Eligibility and Masked Examination Procedures...2 4.1.2 Equipment Needed for Masked Examination Procedures...3 4.2 Primary
More informationBasic Optics: What You Need To Know Lynn Lawrence, CPOT, ABOC, COA, OSC
Basic Optics: What You Need To Know Lynn Lawrence, CPOT, ABOC, COA, OSC Disclaimer Please prepare for certification testing with materials from the organization in which you want your certification granted
More informationThe Indian Academy Nehrugram DEHRADUN Question Bank Subject - Physics Class - X
The Indian Academy Nehrugram DEHRADUN Question Bank - 2013-14 Subject - Physics Class - X Section A A- One mark questions:- Q1. Chair, Table are the example of which object? Q2. In which medium does the
More information7 = <» _1_. The Language of Physics. Summary of Important Equations. J_ Pi. \j?i rj
The Language of Physics Refraction The bending of light as it travels from one medium into another. It occurs because of the difference in the speed of light in the different mediums. Whenever a ray of
More informationClinical Update for Presbyopic Lens Options
Clinical Update for Presbyopic Lens Options Gregory D. Searcy, M.D. Erdey Searcy Eye Group Columbus, Ohio The Problem = Spherical Optics Marginal Rays Spherical IOL Light Rays Paraxial Rays Spherical Aberration
More information12.1. 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 informationST 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 informationLab Work For Rimless Eyewear Drilling
Advanced Dispensing for Paraoptometric Assistants 2016 Alex Yoho, ABOM Working with Rimless Lab Work For Rimless Eyewear Drilling Finishing the hole 1 Mounting techniques Be sure strap is bent properly
More informationFITTING GUIDE PRACTITIONER S ROSE K2 KC ROSE K2 NC ROSE K2 IC ROSE K2 PG NIPPLE CONE IRREGULAR CORNEA POST GRAFT
Keratoconus Nipple Cone Irregular Cornea Post Graft PRACTITIONER S FITTING GUIDE NIPPLE CONE IRREGULAR CORNEA POST GRAFT Four lens designs... One simple systematic approach to fitting Featuring Easy-to-fit
More informationIrregular Cornea. ROSE K2 Soft TM. Practitioner s Fitting Guide
Irregular Cornea ROSE K2 Soft TM Practitioner s Fitting Guide ROSE K2 Soft Applications Design ROSE K2 Soft is a daily wear soft lens for irregular corneas. ROSE K2 Soft is a 3 month replacement lens when
More informationWaves & Oscillations
Physics 42200 Waves & Oscillations Lecture 33 Geometric Optics Spring 2013 Semester Matthew Jones Aberrations We have continued to make approximations: Paraxial rays Spherical lenses Index of refraction
More informationTechnology 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 informationptical Short Course International
ptical Short Course International 6679 N. Calle de Calipso, Tucson, AZ http://www.oscintl.com 520-797-9744 What s In The Box? Optics of Digital Projectors Weekly Newsletter Sponsored By: The Brand for
More informationOptics Supplement. Christopher S. Wolfe, OD, FAAO
Optics Supplement Christopher S. Wolfe, OD, FAAO One of the most consistently difficult sections of the NBEO Part 1 exam has been optics. We feel that in order to truly master this material one must: 1.
More informationWHY EDOF INTRAOCULAR LENSES? FOR EXCELLENT VISION QUALITY TO SUPPORT AN ACTIVE LIFESTYLE PATIENT INFORMATION. Cataract treatment
WHY EDOF INTRAOCULAR LENSES? FOR EXCELLENT VISION QUALITY TO SUPPORT AN ACTIVE LIFESTYLE PATIENT INFORMATION Cataract treatment OK, I HAVE A CATARACT. NOW WHAT? WE UNDERSTAND YOUR CONCERNS WE CAN HELP.
More informationISO INTERNATIONAL STANDARD. Ophthalmic optics Mounted spectacle lenses. Optique ophtalmique Verres ophtalmiques montés. First edition
Provläsningsexemplar / Preview INTERNATIONAL STANDARD ISO 21987 First edition 2009-10-01 Ophthalmic optics Mounted spectacle lenses Optique ophtalmique Verres ophtalmiques montés Reference number ISO 21987:2009(E)
More informationSTUDY OF ADULT STRABISMUS TESTING PROCEDURES MANUAL
STUDY OF ADULT STRABISMUS TESTING PROCEDURES MANUAL Version 3.0 July 13, 2016 SAS1 s Manual_v3.0_7-13-16 1 CONVERGENCE INSUFFICIENCY SYMPTOM SURVEY (CISS)... 3 Convergence Insufficiency Symptom Survey
More information