Posters

Comparative outcomes of refractive lens exchange treatments using total keratometry measurements vs anterior keratometry measurements

Poster Details

First Author: A.Abdul Hamid UK

Co Author(s):    S. Vaswani   I. Siso-Fuertes   J. Dermott   A. Hartwig   C. O'Donnell        

Abstract Details

Purpose:

To report comparative predicted post-operative refraction (PPOR), unaided distance and near visual acuity (UDVA, UNVA) and post-operative spherical equivalent refraction (SEQ) data between two groups of patients who underwent refractive lens exchange (RLE) surgery. The first group had intraocular lens (IOL) powers calculated with total keratometry measurements, whilst the second group had IOL powers calculated using anterior keratometry only.

Setting:

Optegra Eye Hospital London, UK

Methods:

The study population consists of patients who underwent RLE surgery within a private hospital. Intended sample size for each group will comprise of 100 eyes each and target for all eyes is emmetropia. The Zeiss AT LISA tri 839 MP IOL (Carl Zeiss Meditec, Germany) was used for all eyes. Optical biometry was obtained using the IOL Master 700 (Carl Zeiss Meditec, Germany) and calculations were performed using the Barrett TK formula and Barrett Universal II formula for the total keratometry group and anterior keratometry group respectively. PPOR, UDVA, UNVA and SEQ values were evaluated for all eyes.

Results:

Data collection in progress.

Conclusions:

An evaluation will be reached as to whether one method produces a significantly lower absolute error.

Financial Disclosure:

... receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented