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Subha's Ophthalmic Page
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search information related to IOL, biometry, corneal topography, etc.


Subhabrata Bhattacharya
Apr 22, 2022
Vivity extended depth of focus lens
How does the VIvity lens work. Not definitive but an impression only.

Subhabrata Bhattacharya
Mar 29, 2022
Near Visual Acuity - N notation chart
Near Visual Acuity measurement

Subhabrata Bhattacharya
Feb 27, 2022
Axial length measurement with Bscan
Bscan and how it can be used for axial length measurement in challenging eyes


Subhabrata Bhattacharya
Feb 23, 2022
Sirius Topography Indices
Sirius topography key indices for Keratoconus


Subhabrata Bhattacharya
Jan 22, 2022
IOL power calculation in keratoconus
TORIC IOL calculation in Keratoconus patients

Subhabrata Bhattacharya
Jan 12, 2022
Guide to Pentacam Holladay EKR Report
How you interpret the Holladay EKR report in Pentacam

Subhabrata Bhattacharya
Nov 15, 2021
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
Guide to Pentacam maps
this guide helps to interpret Pentacam corneal topography reports.


Subhabrata Bhattacharya
Sep 4, 2021
Choosing Intra ocular Lens -2: Optics
What are the key features of Intra Ocular Lens in terms of optics


Subhabrata Bhattacharya
Sep 1, 2021
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 is what matters

Subhabrata Bhattacharya
Aug 22, 2021
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...


Subhabrata Bhattacharya
Aug 10, 2021
Biometry - Part II Axial Length
Talks about axial length measurement in Biometry for IOL power calculation


Subhabrata Bhattacharya
Aug 10, 2021
Biometry - Part I Keratometry
Part I in Biometry describes Keratometry and pearls for a successful keratometry


Subhabrata Bhattacharya
Aug 1, 2021
Conversion of Snellen Chart from feet to meters, decimal, logmar
How to convert from one snellen chart metric to another - conversion of metres to feet or log mar, etc


Subhabrata Bhattacharya
Jul 24, 2021
Understanding the Customer - DISC
DISC profile and how to respond to different behavioural pattern demonstrated by persons you are speaking to
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