search information related to IOL, biometry, corneal topography, etc.

This tool helps you to optimize/personalize a-constant for better refractive outcomes.

iTrace maps analyze how light actually travels through the eye by sending sequential laser beams through the pupil and tracing their exit from the retina. This method allows clinicians to separate corneal aberrations from internal aberrations, an extremely useful feature when evaluating cataract patients, premium IOL candidates, and post-refractive surgery eyes.

This post highlights ten essential things to check in the optical biometry chart. Understanding these factors helps surgeons make informed decisions, improving refractive outcomes and patient satisfaction.

This article provides insights into the different modern IOL power calculation formulas like the Barrett Universal, Kane and EVO formula

The following video content is an impression of how the Barrett Universal II formula works. Barrett Universal II is an unpublished...

This calculator will help you to calculate the power of cornea from the radius of curvature

A common notion amongst clinicians is that the labelled power (diopter) on the IOL box is precisely the power of the IOL. That is, the...

Objective of this article: In this article I am proposing a method that helps manufacturers as well as users adapt IOL box A constant to...

The refraction shown against target IOL Power in the biometry page is not emmetropia but a spherical equivalent.

Interpreting a pin hole test for vision testing.

This tool will help you to use Haigis L formula for post lasik patients. As first step it helps you to convert K readings.

This allows you to convert post Lasik corneal reading and IOL constant to Shammas post lasik formula with no history method

Aconstant - Ultrasound biometry vis-a-vis optical biometry

What is IOL Master TK or Total Keratometry. How does it work?

Near Visual Acuity measurement

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

TORIC IOL calculation in Keratoconus patients

How you interpret the Holladay EKR report in Pentacam

this guide helps to interpret Pentacam corneal topography reports.

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