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Gaussian optics, Gullstrand eye, & Biometry

Subhabrata Bhattacharya

Aug 6, 2021

Biometry

Gaussian optics, Gullstrand eye, & Biometry

THe role of mathematics and gaussian optics in Biometry for IOL power calculation

Guide to Extended Depth of Focus (EDOF) IOLs optics.

Subhabrata Bhattacharya

Nov 12

Optics

Guide to Extended Depth of Focus (EDOF) IOLs optics.

At the end of the reading, you will get an understanding of the design of the Extended Depth of Focus (EDOF) IOLs in the market, and how the

Understanding the Point Source Function and Strehl Ratio of a lens system

Subhabrata Bhattacharya

Oct 4

Optics

Understanding the Point Source Function and Strehl Ratio of a lens system

Point spread Function gives us an understanding of the resolution of an optical system.

Subhabrata Bhattacharya

Sep 21

Biometry

Pin hole Test - Interpretation

Interpreting a pin hole test for vision testing.

Subhabrata Bhattacharya

Sep 4

Biometry

Haigis L Formula for Post Lasik

This tool will help you to use Haigis L formula for post lasik patients. As first step it helps you to convert K readings.

Shammas post Lasik A-constant and Corneal reading conversion

Subhabrata Bhattacharya

Aug 23

Quick

Shammas post Lasik A-constant and Corneal reading conversion

This allows you to convert post Lasik corneal reading and IOL constant to Shammas post lasik formula with no history method

Angle Kappa-Angle Alpha- Angle Lambda of the eye

Subhabrata Bhattacharya

Jul 30

Quick

Angle Kappa-Angle Alpha- Angle Lambda of the eye

Why we should stop asking about Abbe Number with Intra Ocular Lenses

Subhabrata Bhattacharya

Jul 18

Optics

Why we should stop asking about Abbe Number with Intra Ocular Lenses

This article describes what is Abbe number and chromatic aberration and answers if Abbe number is important for IOL industry

How to satisfy a patient who is having difficulty adjusting to astigmatism correcting glasses.

Subhabrata Bhattacharya

Apr 16

TORIC

How to satisfy a patient who is having difficulty adjusting to astigmatism correcting glasses.

If a patient complains about his glass prescription and finds difficult to adjust to cylinder, how can you prescribe modify the prescription

Subhabrata Bhattacharya

Apr 13

Video

Astigmatism with TORIC IOLs

Explains astigmatism and how it is corrected with glasses and TORIC IOLS

Effective near add power for multifocal IOL based on patient axial length, Keratometry.

Subhabrata Bhattacharya

Feb 5

Tools

Effective near add power for multifocal IOL based on patient axial length, Keratometry.

This calculator helps you to predict near add power in corneal or spectacle plane based on patient details and multifocal IOL add in lens

Understanding Defocus Curve of multifocal IOLs

Subhabrata Bhattacharya

Jan 25

Optics

Understanding Defocus Curve of multifocal IOLs

defocus curve helps us to understand the peak near, intermediate vision that a multifocal IOl is capable of providing to patients

Calculating Optical Biometry Aconstant from contact/applanation ultrasound Aconstant

Subhabrata Bhattacharya

Jan 23

Tools

Calculating Optical Biometry Aconstant from contact/applanation ultrasound Aconstant

Converting contact ultrasound biometry aconstant to optical biometry aconstant

Subhabrata Bhattacharya

Jan 21

Tools

A constant Optimization Tool

This is an Aconstant optimization tool develped with the objective to make Aconstant optimization simple, yet effective. Please input 30 cas

Predicted post operative ACD calculator to match ELP

Subhabrata Bhattacharya

Jan 21

Tools

Predicted post operative ACD calculator to match ELP

This calculator gives you an idea about post operative ACD or ELP by predicting it based on preoperatve ACD with optional lens thickness....

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Subha's Ophthalmic Page

search information related to IOL, biometry, corneal topography, etc.

Use this space for advertisements of your ophthalmology related products and services. Reach out to customers worldwide through quickguide.org

Use this space for advertisements of your ophthalmology related products and services. Reach out to customers worldwide through quickguide.org

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