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Subha's Ophthalmic Page
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search information related to IOL, biometry, corneal topography, etc.
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 22, 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 10, 2021
Gaussian optics, Gullstrand eye, & Biometry
THe role of mathematics and gaussian optics in Biometry for IOL power calculation
Subhabrata Bhattacharya
Aug 6, 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
Aug 1, 2021
Understanding the Customer - DISC
DISC profile and how to respond to different behavioural pattern demonstrated by persons you are speaking to
Subhabrata Bhattacharya
Jul 24, 2021
Modulation Transfer Function (MTF)
Explains what is Modular Transfer Function or MTF and what does it indicate about a lens capability of transferring image contrast
Subhabrata Bhattacharya
Jul 20, 2021
Bascis of Phacoemulsification(Video) - Part III
In Part III of Basics of Phaco series we look into phaco energy delivery modalities like Continuous power and Pulse mode. If you have not...
Subhabrata Bhattacharya
Jul 10, 2021
Understanding Corneal Topography and Pentacam - Part I
Corneal power maps in Pentacam
Subhabrata Bhattacharya
Jul 7, 2021
Diffractive Multifocal IOL Science
Takes you through the origin and science behind diffractive multifocal IOLs
Subhabrata Bhattacharya
Jul 4, 2021
Cooke-modified axial length (CMAL)
How CMAL may be the answer to traditional optical biometry measuring axial length on the basis of group refractive index
Subhabrata Bhattacharya
Jul 3, 2021
The science behind Barrett Universal II formula
The below video will describe Barrett Universal II formula, its origin and the science behind it, including Lens Factor and the Gaussian...
Subhabrata Bhattacharya
Jun 25, 2021
Interpreting Zernike Polynomials in Ophthalmology
Below video explains the Zernike Polynomials from a Opthalmology point of view. You can also read the article explaining Zernike...
Subhabrata Bhattacharya
Jun 20, 2021
Science Behind Diffractive Multifocals
The author visiting Lighthouse (optics) in Kerala, India in 2018. There are very few people who would not stop by to see, if ever they...
Subhabrata Bhattacharya
Jun 14, 2021
Optical Biometry - Myth & Science
Optical biometry has added much value to refractive outcome, but there are some myths and misconceptions associated with optical biometry
Subhabrata Bhattacharya
Apr 14, 2021
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