HOYA aspherical IOL with ABC (Aspheric Balanced Curve) Design
|
|
- Preston Howard
- 6 years ago
- Views:
Transcription
1 HOYA aspherical IOL with ABC (Aspheric Balanced Curve) Design
2 Contents Basics of asphericity Visual quality and aspheric IOL Features of HOYA ABC Design 2
3 What is asphericity? Deviating from the spherical shape or a reflecting surface which by the rotation around a point from the circle by an axial develops. 3
4 Asphericity The deflect of the sphere form (= spheric) is aspheric form! 4
5 What is aberration? It is an illusion created by the optical system when viewing an object. We know a lot of different aberrations, e.g. Spherical aberration Chromatic aberration Coma 5
6 Spherical aberration Abaxial rays outside of the Gaußschen territory (approx. 5 around the axis) will be refracted stronger! Optical axis Spherical aberration Gaußscher territory 6
7 Chromatic aberration Different index of several mediums determine different chromatic aberrations of the wavelength Chromatic aberration 7
8 Coma If light rays refract slant on a optical surface, you will get a deformation like the illustration Image Coma 8
9 Contents Basics of asphericity Visual quality and aspheric IOL Features of HOYA ABC Design 9
10 Optical system Positive aberration ~ +43 dioptors=2/3 Positive aberration ~ dioptors=1/3 10
11 Optical system The abberations of the natural human lens change during life. So the positive abberations of the optical system are increasing with the age. 11
12 Spherical aberration spheric aberration-free negative aspheric SA = + SA = 0 SA = Power increases from center to edge Power is uniform for all areas Power decreases from center to edge 12
13 Concept of aspheric IOLs 13
14 Influence of aspheric IOL Spherical IOL Good DOF Worse visual Quality ++ + Negative SA IOL +++ Worse DOF Best Image Quality
15 Effect of pupil size (small pupil) spherical aspheric no difference between the image qualities 15
16 Effect of pupil size (huge pupil) spherical aspheric Clear image different between booths lenses 16
17 Simulation 1 with model eye system aspheric vs. spheric aperture:ø 3mm 5mm HOYA ABC Design YA-60BBR With 3mm aperture (pupil diameter), there is no obvious difference between the two charts, but with 5mm there is a significant difference 17
18 Contents Basics of asphericity Visual quality and aspheric IOL Features of 18
19 HOYA aspheric ABC Design 19
20 HOYA aspheric ABC Design 20
21 HOYA aspheric ABC Design 21
22 HOYA aspheric ABC Design 22
23 HOYA aspheric ABC Design 23
24 HOYA aspheric ABC Design 24
25 Transmission Aspheric vs. Spheric 100 Comparison of PY-60AD FY-60AD and YA-60BB for transmission of light Transmission (%) YA-60BB(+10D) 0.56mm YA-60BB(+20D) 0.76mm YA-60BB(+30D) 1.02mm PY-60AD(+20D) 0.68mm Wavelength (nm) Comparison PY-60AD (HOYA Aspheric IOL,Yellow) and YA-60BB (HOYA spherical IOL, Yellow) These plots show that the transmission curve is depended on the thickness of the lens. Aspheric lens of the same power has a little bit thinner than the spherical one. Since the thickness of +20 D aspheric lens has thickness between +10 D and +20 D spherical lens, the aspheric transmission curve also lied between these lenses. 25
26 Edge Technology Sharp edge (electron micrograph: x 100) Posterior optic enhanced 360 o sharp edge and step edge design
27 Detriment of aspheric optics Shallow depth of focus Strongly influenced by decentration Influenced by tilt Individual asphericity is necessary 27
28 Depth of focus (4.0 mm pupil) Spherical IOL Good DOF D D 0 D D D Negative SA IOL Worse DOF D D 0 D D D 28
29 Effect of decentration Spherical IOL Aspheric IOL Perfectly centered Decentered by 0.5 mm Mean decentration0.37 mm mm M. Rynders, B. Lidkea, W. Chisolm, L. N. Thibos, J. Opt. Soc. Am., A, 12, (1995)
30 Surface distributions (+20.0 D) 30
31 HOYA Concept / principle: ABC design is a optimized surface by HOYA Lathe-Cut technology for compensation of the cornea aberration with an asphericityof ~ 0.18 µm HOYA ABC design provides always the best image and contrast quality, also in the case of a pupil offset to the capsular bag. (= USP) 31
32 PSF in the case of Decentration ~ Simulated by HOYA s original settings ~ On optical axis ABC Design Standard aspheric IOL The aberration can be minimized, and the image is sharp (our design is better, because it is under our optimum condition). Spherical lens 0.5mm decentration There is an aberration also on optical axis, which is bigger than the aberration caused by the decentration HOYA aspheric has sharper vision than the other. 32
33 Effect of decentration on contrast Recent reports for the decentration, the mean value is mm. 1) T. Oshika, G. Sugita, K. Miyata, T. Tokunaga, T. Samejima, C. Okamoto, and Y. Ishii., Influence of tilt and decentration of scleral-sutured intraocular lens on ocular higher-order wavefront aberration, Br. J. Ophthalmol., 2006;(Epub ahead of print) 2) P. Rosales and S. Marcos, Phakometry and lens tilt and decentration using a customdeveloped Purkinje imaging apparatus: validation and measurements, J. Opt. Soc. Am., Opt. Image Sci. Vis., 23(3), , ) M. Baumeister, B. Neidhardt, J. Strobel, T. Kohnen, Tilt and decentration of three-piece foldable high-refractive silicone and hydrophobic acrylic intraocular lenses with 6-mm optics in an intraindividual comparison, Am. J. Ophthalmol., 140 (6), , Contrast Spheric A Aperture 4.0 mm HOYA Spatial freq 50 c/mm Decentration (mm) Optimum settings for a standard aspheric IOL (under the condition of Z 4 0 = 0.27) A standard aspehric has better contrast if no decentration because setting values are optimum for a standard aspheric. However, over 0.2mm decentration, HOYA aspheric has better visual quality. 33
34 XX-60AD MTF with tilt Standard aspheric IOL ABC design Spherical IOL 34
35 Issues of aspheric IOLs Issues 1. Corneal aberration is different among patients. 2. As ages, corneal aberration changes. 3. Standard aspheric IOL is weak to decentration. Solutions 1.and 2. Calculate theological corneal aberration values which can be adapted to many people. 3. Well centered with IOL design. Minimize the effect of decentration with optic design.
36 Comparison of visual quality spherical and aspheric IOL YA-60BBR ABC Design Pictures in cloudy late afternoon with aperture of 5mm. Signs in right picture seems clearer and sharper. Especially images at the peripheral zones of the lens are affected by the aberration, and the differences between two can be observed easily. 36
37 Thank you for your attention! 37
The design is distinctive. The outcomes are clear. Defocus tolerance 1 Glistening-free performance 1,2 Predictable outcomes 1
The design is distinctive. The outcomes are clear. Defocus tolerance 1 Glistening-free performance 1,2 Predictable outcomes 1 The clear choice for consistent visual excellence. For over 165 years Bausch
More informationCrystalens AO: Accommodating, Aberration-Free, Aspheric Y. Ralph Chu, MD Chu Vision Institute Bloomington, MN
Crystalens AO: Accommodating, Aberration-Free, Aspheric Y. Ralph Chu, MD Chu Vision Institute Bloomington, MN Financial Disclosure Advanced Medical Optics Allergan Bausch & Lomb PowerVision Revision Optics
More informationLong-term quality of vision is what every patient expects
Long-term quality of vision is what every patient expects Innovative combination of HOYA technologies provides: 1-piece aspheric lens with Vivinex hydrophobic acrylic material Unique surface treatment
More informationNOW. Approved for NTIOL classification from CMS Available in Quar ter Diopter Powers. Accommodating. Aberration Free. Aspheric.
NOW Approved for NTIOL classification from CMS Available in Quar ter Diopter Powers Accommodating. Aberration Free. Aspheric. Accommodation Meets Asphericity in AO Merging Innovation & Proven Design The
More informationThe Aberration-Free IOL:
The Aberration-Free IOL: Advanced Optical Performance Independent of Patient Profile Griffith E. Altmann, M.S., M.B.A.; Keith H. Edwards, BSc FCOptom Dip CLP FAAO, Bausch & Lomb Some of these results were
More informationMaximum Light Transmission. Pupil-independent Light Distribution. 3.75D Near Addition Improved Intermediate Vision
Multifocal Maximum Light Transmission Pupil-independent Light Distribution Better Visual Quality Increased Contrast Sensitivity 3.75D Near Addition Improved Intermediate Vision Visual Performance After
More informationChoices and Vision. Jeffrey Koziol M.D. Thursday, December 6, 12
Choices and Vision Jeffrey Koziol M.D. How does the eye work? What is myopia? What is hyperopia? What is astigmatism? What is presbyopia? How the eye works How the Eye Works 3 How the eye works Light rays
More informationChoices and Vision. Jeffrey Koziol M.D. Friday, December 7, 12
Choices and Vision Jeffrey Koziol M.D. How does the eye work? What is myopia? What is hyperopia? What is astigmatism? What is presbyopia? How the eye works Light rays enter the eye through the clear cornea,
More informationTheoretical Considerations
Bedeutung der Linsenposition für die optische Abbildugsqualität- Ein neues Messverfahren mittels Purkinje Reflexbildern SA(-) Acri.Tec 35A Hoya FY60AD Tecnis ZCB00 AcrySof IQ U. Mester, T. Sauer, H.Kaymak
More informationCustomized intraocular lenses
Customized intraocular lenses Challenges and limitations Achim Langenbucher, Simon Schröder & Timo Eppig Customized IOL what does this mean? Aspherical IOL Diffractive multifocal IOL Spherical IOL Customized
More informationUnique Aberration-Free IOL: A Vision that Patients
Unique Aberration-Free IOL: A Vision that Patients Can Appreciate An Aspheric Optic for Improved Quality of Vision n Traditional spherical IOLs create Bilateral implantation study spherical aberration
More informationIn Vitro Strehl Ratios with Spherical, Aberration-Free, and customized spherical aberration-correcting METHODS
In Vitro Strehl Ratios with Spherical, Aberration-Free, Average, and Customized Spherical Aberration-Correcting Intraocular Lenses Stefan Pieh, 1 Werner Fiala, 1 Andre Malz, 2 and Wilhelm Stork 2 PURPOSE.
More informationExplanation of Aberration and Wavefront
Explanation of Aberration and Wavefront 1. What Causes Blur? 2. What is? 4. What is wavefront? 5. Hartmann-Shack Aberrometer 6. Adoption of wavefront technology David Oh 1. What Causes Blur? 2. What is?
More informationCustomized Correction of Wavefront Aberrations in Abnormal Human Eyes by Using a Phase Plate and a Customized Contact Lens
Journal of the Korean Physical Society, Vol. 49, No. 1, July 2006, pp. 121 125 Customized Correction of Wavefront Aberrations in Abnormal Human Eyes by Using a Phase Plate and a Customized Contact Lens
More informationAberrations Before and After Implantation of an Aspheric IOL
Ocular High Order Aberrations Before and After Implantation of an Aspheric IOL Fabrizio I. Camesasca, MD Massimo Vitali, Orthoptist Milan, Italy I have no financial interest to disclose Wavefront Measurement
More informationWave Front Topography. ReSeeVit Evolution Topography Module for Modi Topographer
Wave Front Topography ReSeeVit Evolution Topography Module for Modi Topographer Introduction The aberrations in the central optical zone have a greater effect than those closer to the edge. From an optical
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 informationClinical Evaluation 3-month Follow-up Report
Clinical Evaluation 3-month Follow-up Report Of SeeLens HP Intraocular Lens 27 December 2010 version 1.1 1of 16 Table of Contents TABLE OF CONTENTS... 1 OBJECTIVES... 2 EFFICACY AND SAFETY ASSESSMENTS...
More informationAdvanced Lens Design
Advanced Lens Design Lecture 3: Aberrations I 214-11-4 Herbert Gross Winter term 214 www.iap.uni-jena.de 2 Preliminary Schedule 1 21.1. Basics Paraxial optics, imaging, Zemax handling 2 28.1. Optical systems
More informationImproving Lifestyle Vision. with Small Aperture Optics
Improving Lifestyle Vision with Small Aperture Optics The Small Aperture Premium Lens Solution The IC-8 small aperture intraocular lens (IOL) is a revolutionary lens that extends depth of focus by combining
More informationCOMPARISON OF THE MEDICONTUR 860FAB
COMPARISON OF THE MEDICONTUR 860FAB HYDROPHOBIC IOL AND THE ACRYSOF IQ LONG TERM FOLLOW UP Péter Vámosi MD, Amanda Argay MD, Zsófia Rupnik MD, János Fekete Péterfy Sándor Hospital Budapest, Hungary PREFERENCE
More informationTelecentric Imaging Object space telecentricity stop source: edmund optics The 5 classical Seidel Aberrations First order aberrations Spherical Aberration (~r 4 ) Origin: different focal lengths for different
More informationEvolution of Diffractive Multifocal Intraocular Lenses
Evolution of Diffractive Multifocal Intraocular Lenses Wavefront Congress February 24, 2007 Michael J. Simpson, Ph.D. Alcon Research, Ltd., Fort Worth, Texas Presentation Overview Multifocal IOLs two lens
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 informationday night convinced supreme contrast sensitivity THE IOL FOR DAY & NIGHT
day supreme contrast sensitivity night convinced THE IOL FOR DAY & NIGHT The IOL for DAY & NIGhT UnIQUE form and features Innovative blue light filtering Excellent quality of vision Maximum depth of focus
More informationDesign of a Test Bench for Intraocular Lens Optical Characterization
Journal of Physics: Conference Series Design of a Test Bench for Intraocular Lens Optical Characterization To cite this article: Francisco Alba-Bueno et al 20 J. Phys.: Conf. Ser. 274 0205 View the article
More informationGlistening-Free Hydrophobic Acrylic IOL. Glistening-Free Hydrophobic Acrylic IOL
Glistening-Free Hydrophobic Acrylic IOL Proprietary Polymer Composition Packaged Dry UD Aspheric Optic Optimized Refractive Index All SquareTM Enhanced Edge Largest Diopter Range -05.00D to 42.00D Modified
More informationVisual Outcomes of Two Aspheric PCIOLs: Tecnis Z9000 versus Akreos AO
Visual Outcomes of Two Aspheric PCIOLs: Tecnis Z9000 versus Akreos AO Ahmad-Reza Baghi, MD; Mohammad-Reza Jafarinasab, MD; Hossein Ziaei, MD; Zahra Rahmani, MD Shaheed Beheshti Medical University, Tehran,
More informationCauses of refractive error post premium IOL s 3/17/2015. Instruction course: Refining the Refractive Error After Premium IOL s.
Instruction course: Refining the Refractive Error After Premium IOL s. Senior Instructor: Mounir Khalifa, MD Instructors: David Hardten,MD Scott MacRea,MD Matteo Piovella,MD Dr. Khalifa: Causes of refractive
More informationCLINICAL SCIENCES. Corneal Optical Aberrations and Retinal Image Quality in Patients in Whom Monofocal Intraocular Lenses Were Implanted
CLINICAL SCIENCES Corneal Optical Aberrations and Retinal Image Quality in Patients in Whom Monofocal Intraocular Lenses Antonio Guirao, PhD; Manuel Redondo, PhD; Edward Geraghty; Patricia Piers; Sverker
More informationOptical Characteristics of Next Generation Dual Optic IOL
Optical Characteristics of Next Generation Dual Optic IOL Scott Evans, MD Sanjeev Kasthurirangan, PhD Val Portney, PhD Financial Disclosures Scott Evans is an employee of Abbott Medical Optics Inc. Sanjeev
More informationTransferring wavefront measurements to ablation profiles. Michael Mrochen PhD Swiss Federal Institut of Technology, Zurich IROC Zurich
Transferring wavefront measurements to ablation profiles Michael Mrochen PhD Swiss Federal Institut of Technology, Zurich IROC Zurich corneal ablation Calculation laser spot positions Centration Calculation
More informationRefractive Power / Corneal Analyzer. OPD-Scan III
Refractive Power / Corneal Analyzer OPD-Scan III Comprehensive Vision Analysis and NIDEK, a global leader in ophthalmic and optometric equipment, has created the OPD-Scan III, the third generation aberrometer
More informationIOL Types. Hazem Elbedewy. M.D., FRCS (Glasg.) Lecturer of Ophthalmology Tanta university
IOL Types Hazem Elbedewy M.D., FRCS (Glasg.) Lecturer of Ophthalmology Tanta university Artificial intraocular lenses are used to replace the eye natural lens when it has been removed during cataract surgery.
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 informationExercises Advanced Optical Design Part 5 Solutions
2014-12-09 Manuel Tessmer M.Tessmer@uni-jena.dee Minyi Zhong minyi.zhong@uni-jena.de Herbert Gross herbert.gross@uni-jena.de Friedrich Schiller University Jena Institute of Applied Physics Albert-Einstein-Str.
More informationWide Diopter Range and Different Haptic Platforms
Monofocal Premium Material Innovative Optic Engineering Ultra Definition All Square 360 0 Enhanced Edge Wide Diopter Range and Different Haptic Platforms Best of Both Worlds Better Visual Quality Advanced
More information*Simulated vision. **Individual results may vary and are not guaranteed. Visual Performance When It s Needed Most
Simulated vision. Individual results may vary and are not guaranteed. Visual Performance When It s Needed Most The aspheric design of the AcrySof IQ IOL results in improved clarity and image quality. The
More informationFitting 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 informationEffects of intraocular lenses with different diopters on chromatic aberrations in human eye models
Song et al. BMC Ophthalmology (2016) 16:9 DOI 10.1186/s12886-016-0184-6 RESEARCH ARTICLE Open Access Effects of intraocular lenses with different diopters on chromatic aberrations in human eye models Hui
More informationFitting Manual Use with
Fitting Manual Use with The KeraSoft IC Lens for and Other Irregular Corneas The KeraSoft IC is a front surface asphere or aspheric toric prism ballasted lens with balanced overall thickness and wavefront
More informationNEW THE WORLD S FIRST AND ONLY SINUSOIDAL TRIFOCAL IOL
NEW THE WORLD S FIRST AND ONLY SINUSOIDAL TRIFOCAL IOL ALL TRIFOCAL IOLS ARE NOT THE SAME! Seamless Vision Near Intermediate Far Light Figure 1: Comparison of MTF Values 1,2 THE WORLD S FIRST AND ONLY
More informationDevelopment of a Calibration Standard for Spherical Aberration
Development of a Calibration Standard for David C. Compertore, Filipp V. Ignatovich, Matthew E. Herbrand, Michael A. Marcus, Lumetrics, Inc. 1565 Jefferson Road, Rochester, NY (United States) ABSTRACT
More informationSome of the important topics needed to be addressed in a successful lens design project (R.R. Shannon: The Art and Science of Optical Design)
Lens design Some of the important topics needed to be addressed in a successful lens design project (R.R. Shannon: The Art and Science of Optical Design) Focal length (f) Field angle or field size F/number
More informationWaveMaster IOL. Fast and Accurate Intraocular Lens Tester
WaveMaster IOL Fast and Accurate Intraocular Lens Tester INTRAOCULAR LENS TESTER WaveMaster IOL Fast and accurate intraocular lens tester WaveMaster IOL is an instrument providing real time analysis of
More informationRaise your expectations. Deliver theirs.
66 EXTENDED RANGE OF VISION MONOFOCAL-LIKE DISTANCE Raise your expectations. Deliver theirs. Now you can give your patients the best of both worlds with the first and only hybrid designed monofocal-multifocal
More informationLecture 2: Geometrical Optics. Geometrical Approximation. Lenses. Mirrors. Optical Systems. Images and Pupils. Aberrations.
Lecture 2: Geometrical Optics Outline 1 Geometrical Approximation 2 Lenses 3 Mirrors 4 Optical Systems 5 Images and Pupils 6 Aberrations Christoph U. Keller, Leiden Observatory, keller@strw.leidenuniv.nl
More informationWaveMaster IOL. Fast and accurate intraocular lens tester
WaveMaster IOL Fast and accurate intraocular lens tester INTRAOCULAR LENS TESTER WaveMaster IOL Fast and accurate intraocular lens tester WaveMaster IOL is a new instrument providing real time analysis
More informationDr. Magda Rau Eye Clinic Cham, Germany
3 and 6 Months clinical Results after Implantation of OptiVis Diffractive-refractive Multifocal IOL Dr. Magda Rau Eye Clinic Cham, Germany Refractive zone of Progressive power for Far to Intermediate
More informationROTATIONAL STABILITY MAKES THE DIFFERENCE
The Bi-Flex platform the proven platform of Excellence 01 Proven Stability less than 02 Optimal biomaterials 2 degrees long term rotation 03 Posterior Toric Lens surface with marks indicating the flat
More informationSequential Ray Tracing. Lecture 2
Sequential Ray Tracing Lecture 2 Sequential Ray Tracing Rays are traced through a pre-defined sequence of surfaces while travelling from the object surface to the image surface. Rays hit each surface once
More information4th International Congress of Wavefront Sensing and Aberration-free Refractive Correction ADAPTIVE OPTICS FOR VISION: THE EYE S ADAPTATION TO ITS
4th International Congress of Wavefront Sensing and Aberration-free Refractive Correction (Supplement to the Journal of Refractive Surgery; June 2003) ADAPTIVE OPTICS FOR VISION: THE EYE S ADAPTATION TO
More informationOptical Engineering 421/521 Sample Questions for Midterm 1
Optical Engineering 421/521 Sample Questions for Midterm 1 Short answer 1.) Sketch a pechan prism. Name a possible application of this prism., write the mirror matrix for this prism (or any other common
More informationNormal Wavefront Error as a Function of Age and Pupil Size
RAA Normal Wavefront Error as a Function of Age and Pupil Size Raymond A. Applegate, OD, PhD Borish Chair of Optometry Director of the Visual Optics Institute College of Optometry University of Houston
More informationIn recent years there has been an explosion of
Line of Sight and Alternative Representations of Aberrations of the Eye Stanley A. Klein, PhD; Daniel D. Garcia, PhD ABSTRACT Several methods for representing pupil plane aberrations based on wavefront
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 informationOptimisation. Lecture 3
Optimisation Lecture 3 Objectives: Lecture 3 At the end of this lecture you should: 1. Understand the use of Petzval curvature to balance lens components 2. Know how different aberrations depend on field
More informationLecture 2: Geometrical Optics. Geometrical Approximation. Lenses. Mirrors. Optical Systems. Images and Pupils. Aberrations.
Lecture 2: Geometrical Optics Outline 1 Geometrical Approximation 2 Lenses 3 Mirrors 4 Optical Systems 5 Images and Pupils 6 Aberrations Christoph U. Keller, Leiden Observatory, keller@strw.leidenuniv.nl
More informationParagon CRT Dual Axis Quick Reference Guide
Paragon CRT Dual Axis Quick Reference Guide DUAL CRT AXIS PARAGON CRT DUAL AXIS OPTIONS TO COMPENSATE FOR PERIPHERAL CORNEAL ELEVATION DIFFERENCES Most eyes with corneal astigmatism manifest a significant
More informationDEFECTS OF VISION THROUGH APHAKIC SPECTACLE LENSES*t
Brit. J. Ophthal. (1967) 51, 306 DEFECTS OF VISION THROUGH APHAKIC SPECTACLE LENSES*t BY ROBERT C. WELSH Miami, Florida BY the use of a series of scale diagrams an attempt is made to explain the following:
More informationSubjective Image Quality Metrics from The Wave Aberration
Subjective Image Quality Metrics from The Wave Aberration David R. Williams William G. Allyn Professor of Medical Optics Center For Visual Science University of Rochester Commercial Relationship: Bausch
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 informationThe Aberration Structure of the Keratoconic Eye
The Aberration Structure of the Keratoconic Eye Geunyoung Yoon, Ph.D. Department of Ophthalmology Center for Visual Science Institute of Optics Department of Biomedical Engineering University of Rochester
More informationAssessing Visual Quality With the Point Spread Function Using the NIDEK OPD-Scan II
Assessing Visual Quality With the Point Spread Function Using the NIDEK OPD-Scan II Edoardo A. Ligabue, MD; Cristina Giordano, OD ABSTRACT PURPOSE: To present the use of the point spread function (PSF)
More informationCorneal Asphericity and Retinal Image Quality: A Case Study and Simulations
Corneal Asphericity and Retinal Image Quality: A Case Study and Simulations Seema Somani PhD, Ashley Tuan OD, PhD, and Dimitri Chernyak PhD VISX Incorporated, 3400 Central Express Way, Santa Clara, CA
More informationAbetter understanding of the distribution of aberrations in
Predicting the Optical Performance of Eyes Implanted with IOLs to Correct Spherical Aberration Juan Tabernero, 1 Patricia Piers, 2 Antonio Benito, 1 Manuel Redondo, 3 and Pablo Artal 1 PURPOSE. To use
More informationNotes from Lens Lecture with Graham Reed
Notes from Lens Lecture with Graham Reed Light is refracted when in travels between different substances, air to glass for example. Light of different wave lengths are refracted by different amounts. Wave
More informationIn vitro optical performance of a new aberration-free intraocular lens
(2014) 28, 614 620 & 2014 Macmillan Publishers Limited All rights reserved 0950-222X/14 www.nature.com/eye LABORATORY STUDY Optometry Research Group, Optics Department, University of Valencia, Valencia,
More informationPerformance Factors. Technical Assistance. Fundamental Optics
Performance Factors After paraxial formulas have been used to select values for component focal length(s) and diameter(s), the final step is to select actual lenses. As in any engineering problem, this
More informationASPIRA PUBLICATION LIST
ASPIRA PUBLICATION LIST ASPIRA-aA / MC 6125 AS PR2 PR3 Eppig T, Scholz K, Löffler A, et al. Effect of decentration and tilt on the image quality of aspheric intraocular lens designs in a model eye J Cataract
More informationMonochromatic Aberrations and Emmetropization
Monochromatic Aberrations and Emmetropization Howard C. Howland* Department of Neurobiology and Behavior Cornell University, Ithaca N.Y. Jennifer Kelly Toshifumi Mihashi Topcon Corporation Tokyo *paid
More informationUsing molded chalcogenide glass technology to reduce cost in a compact wide-angle thermal imaging lens
Using molded chalcogenide glass technology to reduce cost in a compact wide-angle thermal imaging lens George Curatu a, Brent Binkley a, David Tinch a, and Costin Curatu b a LightPath Technologies, 2603
More informationConstruction of special eye models for investigation of chromatic and higher-order aberrations of eyes
Bio-Medical Materials and Engineering 24 (2014) 3073 3081 DOI 10.3233/BME-141129 IOS Press 3073 Construction of special eye models for investigation of chromatic and higher-order aberrations of eyes Yi
More informationHeadline. Pseudophakic Implants, Aspherical Optics, Quality of Vision for Cataract Patients Subline. Damien Gatinel, MD, PhD
Headline Pseudophakic Implants, Aspherical Optics, Quality of Vision for Cataract Patients Subline Damien Gatinel, MD, PhD Introduction Vision is a complex phenomenon involving a sequence of events that
More informationQuality of Vision With Multifocal Progressive Diffractive Lens: Two-Year Follow-up
Quality of Vision With Multifocal Progressive Diffractive Lens: Two-Year Follow-up Antonio Mocellin, MD & Matteo Piovella, MD CMA, Centro di Microchirurgia Ambulatoriale Monza (Milan) Italy Dr Piovella
More informationInstrument for measuring the misalignments of ocular surfaces
Instrument for measuring the misalignments of ocular surfaces Juan Tabernero, Antonio Benito, Vincent Nourrit and Pablo Artal Laboratorio de Óptica, Departamento de Física, Universidad de Murcia, ampus
More informationThrough-focus response of multifocal intraocular lenses evaluated with a spatial light modulator
Through-focus response of multifocal intraocular lenses evaluated with a spatial light modulator Laura Remón, 1 Augusto Arias, 2,3 Arnau Calatayud, 1 Walter D. Furlan, 3 and Juan A. Monsoriu 1, * 1 Centro
More informationComparison of higher order aberrations with spherical and aspheric IOLs compared to normal phakic eyes
European Journal of Ophthalmology / Vol. 18 no. 5, 2008 / pp. 728-732 Comparison of higher order aberrations with spherical and aspheric IOLs compared to normal phakic eyes M. RĘKAS, K. KRIX-JACHYM, B.
More informationPrinciples and clinical applications of ray-tracing aberrometry (Part II)
UPDATE/REVIEW Principles and clinical applications of ray-tracing aberrometry (Part II) Alfredo Castillo Gómez, MD, PhD 1 ; Antonio Verdejo del Rey, OD 2 ; Carlos Palomino Bautista, MD 3 ; Ana Escalada
More informationIMAGE SENSOR SOLUTIONS. KAC-96-1/5" Lens Kit. KODAK KAC-96-1/5" Lens Kit. for use with the KODAK CMOS Image Sensors. November 2004 Revision 2
KODAK for use with the KODAK CMOS Image Sensors November 2004 Revision 2 1.1 Introduction Choosing the right lens is a critical aspect of designing an imaging system. Typically the trade off between image
More informationEffect of rotation and translation on the expected benefit of an ideal method to correct the eye s higher-order aberrations
Guirao et al. Vol. 18, No. 5/May 2001/J. Opt. Soc. Am. A 1003 Effect of rotation and translation on the expected benefit of an ideal method to correct the eye s higher-order aberrations Antonio Guirao
More informationOptical Connection, Inc. and Ophthonix, Inc.
Optical Connection, Inc. and Ophthonix, Inc. Partners in the delivery of nonsurgical vision optimization www.opticonnection.com www.ophthonix.com The human eye has optical imperfections that can not be
More information1.1 Singlet. Solution. a) Starting setup: The two radii and the image distance is chosen as variable.
1 1.1 Singlet Optimize a single lens with the data λ = 546.07 nm, object in the distance 100 mm from the lens on axis only, focal length f = 45 mm and numerical aperture NA = 0.07 in the object space.
More informationThe Dysphotopsia Mystery. John J. Bussa, M.D.
The Dysphotopsia Mystery John J. Bussa, M.D. Cataract Surgery Cataract Surgery Desirable Traits Foldable Lens Inert (non reactive) with a memory Thin folds tight and goes through a smaller incision
More informationHARD TORIC CONTACT LENSES ASTIGMATISM DEFINITION AND OPTIC BASIS
Mario Giovanzana Milano 20.06.01 HARD TORIC CONTACT LENSES ASTIGMATISM DEFINITION AND OPTIC BASIS An astigmatism, according to Whevell (1817) has been defined as astigmatism or astigmatic ametropia; the
More informationTutorial Zemax Introduction 1
Tutorial Zemax Introduction 1 2012-07-17 1 Introduction 1 1.1 Exercise 1-1: Stair-mirror-setup... 1 1.2 Exercise 1-2: Symmetrical 4f-system... 5 1 Introduction 1.1 Exercise 1-1: Stair-mirror-setup Setup
More informationMultifocal and Accommodative
What is an IOL? An intraocular lens (or IOL) is a tiny, artificial lens for the eye. It replaces the eye's natural lens. Retina Cornea Lens Macula The eye's normally clear lens bends (refracts) light rays
More informationPROGRESSIVE VISION WITHIN FULL ACCOMMODATIVE RANGE
PROGRESSIVE VISION WITHIN FULL ACCOMMODATIVE RANGE PROGRESSIVE VISION Progressive vision within full accomodative range 03 Suitable for sub 2 mm MICS 01 PAD Progressive- Apodized-Diffractive 02 Aspheric
More informationKERATOCONUS. In the most advances cases, the corneal deformation can be easy observed fig. 1. Fig. 1
Mario Giovanzana Milano, 14 nd october 01 KERATOCONUS INTRODUCTION The keratocunus is a deformation of the cornea that tends to assume the shape of a cono. The genesis is substantially uncertain. It is
More informationQuality Testing of Intraocular Lenses. OptiSpheric IOL Family and WaveMaster IOL 2
Quality Testing of Intraocular Lenses OptiSpheric IOL Family and WaveMaster IOL 2 LEADING TO THE FUTURE OF OPTICS Optical systems have changed the world. And they will continue to do so. TRIOPTICS is significantly
More informationPhysics 1230: Light and Color. Guest Lecture, Jack again. Lecture 23: More about cameras
Physics 1230: Light and Color Chuck Rogers, Charles.Rogers@colorado.edu Ryan Henley, Valyria McFarland, Peter Siegfried physicscourses.colorado.edu/phys1230 Guest Lecture, Jack again Lecture 23: More about
More informationOptical Design with Zemax
Optical Design with Zemax Lecture : Correction II 3--9 Herbert Gross Summer term www.iap.uni-jena.de Correction II Preliminary time schedule 6.. Introduction Introduction, Zemax interface, menues, file
More informationWavefront Aberrations in Eyes With Acrysof Monofocal Intraocular Lenses
Wavefront Aberrations in Eyes With Acrysof Monofocal Intraocular Lenses Prema Padmanabhan, MS; Geunyoung Yoon, PhD; Jason Porter, PhD; Srinivas K. Rao, FRCSEd; Roy J, MSc; Mitalee Choudhury, BS ABSTRACT
More informationQuality Testing of Intraocular Lenses. OptiSpheric IOL Family and WaveMaster IOL 2
Quality Testing of Intraocular Lenses OptiSpheric IOL Family and WaveMaster IOL 2 LEADING TO THE FUTURE OF OPTICS Optical systems have changed the world. And they will continue to do so. TRIOPTICS is significantly
More informationLaboratory experiment aberrations
Laboratory experiment aberrations Obligatory laboratory experiment on course in Optical design, SK2330/SK3330, KTH. Date Name Pass Objective This laboratory experiment is intended to demonstrate the most
More informationIn this issue of the Journal, Oliver and colleagues
Special Article Refractive Surgery, Optical Aberrations, and Visual Performance Raymond A. Applegate, OD, PhD; Howard C. Howland,PhD In this issue of the Journal, Oliver and colleagues report that photorefractive
More informationMultifocal Progressive Diffractive Lens to Improve Light Distribuition and Avoid Light Loss: Two Years Clinical Results
Multifocal Progressive Diffractive Lens to Improve Light Distribuition and Avoid Light Loss: Two Years Clinical Results Matteo Piovella MD & Barbara Kusa MD CMA, Centro di Microchirurgia Ambulatoriale
More informationINTRODUCTION TO ABERRATIONS IN OPTICAL IMAGING SYSTEMS
INTRODUCTION TO ABERRATIONS IN OPTICAL IMAGING SYSTEMS JOSE SASIÄN University of Arizona ШШ CAMBRIDGE Щ0 UNIVERSITY PRESS Contents Preface Acknowledgements Harold H. Hopkins Roland V. Shack Symbols 1 Introduction
More informationImage quality in polypseudophakia for extremely short eyes
656 Br J Ophthalmol 1999;83:656 663 Applied Vision Research Centre, Department of Optometry and Visual Science, City University, London EC1V 7DD C C Hull Sussex Eye Hospital, Eastern Road, Brighton, West
More informationLens Design I Seminar 1
Xiang Lu, Ralf Hambach Friedrich Schiller University Jena Institute of Applied Physics Albert-Einstein-Str 15 07745 Jena Lens Design I Seminar 1 Warm-Up (20min) Setup a single, symmetric, biconvex lens
More information