quickguide.org

Gaussian optics, Gullstrand eye, & Biometry

THe role of mathematics and gaussian optics in Biometry for IOL power calculation

Calculator for deriving corneal power with true indices and radius of curvature of anterior and posterior cornea

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

Difference between labelled IOL power and actual power of the IOL

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...

Find : Diameter of central Bull's Eye of diffractive multifocal IOL and to which focal point this light is dedicated to

Objective: This tool helps you to find following things: What is the true size of the diameter of the central bull's eye of the...

Why present day IOL box A constant based on thin optics concept needs to be reworked to improve IOL power prediction with thick lens formulae

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...

Calculation of IOL power and location of principal planes based on thick lens formula

This tool helps you to calculate the lens power based on thick lens formula. It also helps locate principal plane in the optic

How Diffractive Multifocal IOLs work

Understanding Angle Alpha & Angle Kappa- the finer aspects

Optical axis of the eye is a theretical concept. Clinically, if a point source of light was projected to the eye, then all reflexes from the

Why some patients land up with unexpected spherical surprise after IOL implantation.

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

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