Biometry - Part I Keratometry
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Subha's Ophthalmic Page
search information related to IOL, biometry, corneal topography
Part I in Biometry describes Keratometry and pearls for a successful keratometry
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
Understanding the Customer - DISC
DISC profile and how to respond to different behavioural pattern demonstrated by persons you are speaking to
Modular Transfer Function (MTF)
Explains what is Modular Transfer Function or MTF and what does it indicate about a lens capability of transferring image contrast
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...
Understanding Corneal Topography and Pentacam - Part I
Corneal power maps in Pentacam
Diffractive Multifocal IOL Science
Takes you through the origin and science behind diffractive multifocal IOLs
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
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...
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...
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...
Optical Biometry - Myth & Science
Optical biometry has added much value to refractive outcome, but there are some myths and misconceptions associated with optical biometry
Decoding Snellen Chart in 4 mins !
This explains the science behind the Snellen chart and why is it kept at a distance of 6m or 20f from the eye
Second Eye IOL Power calculator based on First Eye Prediction error
f you had a more than .50 diopter of refractive error in the first eye, here is a calculator to to consider IOL power for the second eye ba
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