Posters

Calculating the human eye: the evolution of biometry for cataract surgery

Poster Details

First Author: S.Scholtz GERMANY

Co Author(s):    A. Langenbucher                    

Abstract Details

Purpose:

Optical biometry is the standard diagnostic tool and essential basis for IOL calculation prior to cataract surgery today. Our poster will provide a short overview of the historical development of biometry of the human eye and the formulas used for IOL calculation.

Setting:

International Vision Correction Research Centre (IVCRC), University Heidelberg, Germany Institut für Experimentelle Ophthalmologie, Universität des Saarlandes, 66424 Homburg/Saar, Germany.

Methods:

Selective literature search in books and journal articles via PubMed, Google Scholar and Google as well as close cooperation with IOLCon at University Homburg/Saar (Germany).

Results:

For first measurements of the eye ultrasound was applied invasively. Today, ultrasound is mostly restricted to cases where optical biometry cannot be performed due to opaque optical media. However, today most of the modern biometers are working with OCT non-invasively. Along with this technical evolution numerous formulas have been developed for calculating the optical power of each respective IOL.

Conclusions:

Today, an increasing number of eyes that underwent refractive surgery previously are facing cataract surgery. Maybe even more important than adequate biometry of the human eye will be using appropriate calculation schemes helping to enhance post-cataract refractive outcome or predictability.

Financial Disclosure:

None