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Subha's Ophthalmic Page
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search information related to IOL, biometry, corneal topography, etc.
Pupil Test - A Key Element in Multifocal IOL Candidacy
testing if the patient has a reactive pupil is important for multifocal IOL selection. This article describes the pupillary reflex pathway.
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Nov 27, 20187 min read
Quick Links to Useful Sites
AAO https://www.aao.org/ All About Vision https://www.allaboutvision.com/ APSCRS https://www.apacrs.org/ ASCRS http://ascrs.org/ Atlas of...
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Nov 23, 20181 min read
Quick Links to TORIC Calculators,etc
Please go through this excellent article to get started with TORIC IOLs which I believe brings out the quick four points before you start...
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Nov 23, 20181 min read
The ‘Why’ & ‘What’ of Centroid SIA involving astigmatic correction
As the art of correcting corneal astigmatism became popular with Toric IOLs, a predominant concept has been to provide incision on the...
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Nov 23, 20182 min read
For Optical Biometry latest A Constants - https://iolcon.org/searchLens.php
Click on this link :https://iolcon.org/searchLens.php
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Nov 23, 20181 min read
The ‘Why’ & ‘What’ of Centroid SIA involving astigmatic correction.
What is centroid SIA and why is it important not go with a fixed .50D of SIA that you have entered in Toric calculators in the past.
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Oct 31, 20182 min read
Common Topography Indices
Here are explanations to some common topography indices that you will find across several corneal topography machines. While there is no sta
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Oct 22, 20181 min read
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Oct 19, 20180 min read
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Oct 19, 20180 min read
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Oct 19, 20180 min read
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Oct 19, 20180 min read
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Oct 19, 20180 min read
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Oct 19, 20180 min read
How does a diffractive Multifocal IOL work ? Learn more about history and development of multifocal.
This video explains the science and roots of our present day multifocal IOLs based on diffractive science.
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Oct 19, 20180 min read
Negative Dysphotopsia-Causes & Symptom
Reasons why some patients suffer from negative dysphotopsia after cataract surgery and IOL implantation
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Oct 13, 20186 min read
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