Subha's Ophthalmic Page - quickguide.org

Ophthalmic Quick Guide

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as on Jan'22 there are 94 items for you to check out

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Welcome to quickguide.org ! This site is continuously being built to help you with topics on biometry, corneal topography, phaco, etc.This passion filled page is a capture of my key learnings and intended to share my experience for better outcomes.

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Subhabrata Bhattacharya

Aug 6, 2021
11 min

Gaussian optics, Gullstrand eye, & Biometry

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

Subhabrata Bhattacharya

Nov 22
0 min

Posterior Capsular Opacificaion in 5 minutes

Posterior capsular opacification

Subhabrata Bhattacharya

Nov 20
1 min

Aconstant conversion from Optical Biometry to immersion or contact based biometry

Aconstant

Subhabrata Bhattacharya

Oct 29
0 min

Selecting non TORIC IOL power in patients with astigmatism

Subhabrata Bhattacharya

Sep 11
0 min

Aconstant - Immersion Ultrasound vis-a-vis Optical biometry

Aconstant - Ultrasound biometry vis-a-vis optical biometry

Subhabrata Bhattacharya

Sep 8
0 min

What is IOL Master700 TK ?

IOL Master Total Keratometry

Subhabrata Bhattacharya

Sep 4
1 min

Angle Kappa and multifocal lens bull’s eye

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Subhabrata Bhattacharya

Aug 4
1 min

Multifocal IOL patient evaluation

What you need to see when evaluation candidacy of a multifocal IOL patient

Subhabrata Bhattacharya

May 17
7 min

Spheric, Aspheric and Freeform lenses

The concept of freeform lens or digital lens or even order aspheric design

Subhabrata Bhattacharya

Apr 22
2 min

Vivity extended depth of focus lens

Alcon claims Vivity as the first and only non-diffractive extended depth of focus IOL. It introduces what the company names as X-Wave...

Subhabrata Bhattacharya

Mar 29
3 min

Near Visual Acuity

Near Visual Acuity measurement

Subhabrata Bhattacharya

Feb 27
4 min

Axial length measurement with Bscan

Bscan and how it can be used for axial length measurement in challenging eyes

Subhabrata Bhattacharya

Feb 23
1 min

Sirius Topography Indices

Sirius topography key indices for Keratoconus

Subhabrata Bhattacharya

Jan 22
8 min

IOL power calculation in keratoconus

In this article we will discuss about IOL power calculation in non progressive keratoconus patients. keratoconus is a relatively common...

Subhabrata Bhattacharya

Jan 12
7 min

Guide to Pentacam Holladay EKR Report

How you interpret the Holladay EKR report in Pentacam

Subhabrata Bhattacharya

Nov 15, 2021
5 min

Toric IOL surprise-the missing link

Why do some patients have more residual astigmatism after implantation of a Toric IOL which is seemingly unexplained

Subhabrata Bhattacharya

Oct 7, 2021
3 min

Guide to Pentacam maps

This will take you through a step by step interpretation of 4 composite refractive map of Pentacam. For interpretation of other maps of...

Subhabrata Bhattacharya

Sep 4, 2021
7 min

Choosing Intra ocular Lens -2: Optics

What are the key features of Intra Ocular Lens in terms of optics

Subhabrata Bhattacharya

Sep 1, 2021
11 min

Choosing Intra Ocular Lens-1 : Material

Choosing the right intra ocular lens (IOL) for cataract surgery is never an easy job. Infact there may be no one IOL that has all the...

Subhabrata Bhattacharya

Aug 22, 2021
1 min

Design Factor of IOLs for Barrett formula

Here are the suggested Design Factors of some common Intra Ocular Lenses for the Barrett Universal formula. If you are looking for Lens...

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