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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

Calculation of IOL power and location of principal planes based on thick lens formula

Subhabrata Bhattacharya

Apr 16

Tools

Calculation of IOL power and location of principal planes based on thick lens formula

This tool helps you to calculate the lens power based on thick lens formula. It also helps locate principal plane in the optic

$How Diffractive Multifocal IOLs work$

Subhabrata Bhattacharya

Mar 19

Video

How Diffractive Multifocal IOLs work

Understanding Angle Alpha & Angle Kappa- the finer aspects

Subhabrata Bhattacharya

Feb 24

Optics

Understanding Angle Alpha & Angle Kappa- the finer aspects

Optical axis of the eye is a theretical concept. Clinically, if a point source of light was projected to the eye, then all reflexes from the

Why some patients land up with unexpected spherical surprise after IOL implantation.

Subhabrata Bhattacharya

Dec 28, 2023

Biometry

Why some patients land up with unexpected spherical surprise after IOL implantation.

The refraction shown against target IOL Power in the biometry page is not emmetropia but a spherical equivalent.

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

Subhabrata Bhattacharya

Nov 12, 2023

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 Spread Function and Strehl Ratio of a lens system

Subhabrata Bhattacharya

Oct 4, 2023

Optics

Understanding the Point Spread 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, 2023

Biometry

Pin hole Test - Interpretation

Interpreting a pin hole test for vision testing.

Subhabrata Bhattacharya

Sep 4, 2023

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.

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