Posters

Repeatability and agreement of a new multimodal imaging platform Anterionwith IOL Master 700 and Lenstar 900

Poster Details

First Author: P.Pandit INDIA

Co Author(s):    R. Shetty   L. Kaweri   A. Koshy   P. Khammar           

Abstract Details

Purpose:

To evaluate the Repeatability and agreement between Anterion(Heidelberg Engineering), IOL Master 700 (Carl Zeiss Meditec AG, Germany) and Lenstar 900 (Haag Streit AG,Switzerland) for anterior segment parameters and intraocular lens (IOL) power calculation

Setting:

Narayana Nethralaya, Bengaluru India

Methods:

Three measurements were obtained from the three biometers in 127 eyes of 76 patients before cataract surgery and were compared for Axial Length(AL),Central corneal thickness(CCT), Aqueous depth(AD), keratometry (Km) and white to white(WTW).Accuracy of the IOL power measurement as residual error at 1-month post-surgery was also analysed.

Results:

Mean(SD) values of AL, AD, Km and WTW was 23.40(0.007)mm, 2.74(0.007)mm, 44.14(0.01)D, 11.96(0.01)mm from Lenstar, 23.31(0.16), 2.80(0.01), 43.91(0.11), 12.11(0.55) from Anterion and 23.43(0.025), 2.51(0.13), 42.74(0.14), 12.07(0.17) from IOL master respectively. Anterion showed systematic differences from both Lenstar and IOL Master for AD and Km. AL showed systematic difference between Lenstar and IOL Master.Mean within-subject standard deviationfor AL, AD, Km and WTW was 0.09mm, 0.03mm, 0.16D and 0.08mm for Anterion, 0.017, 0.04, 0.04 and 0.05 for Lenstar and 0.03,0.12,0.14 and 0.17for IOL Master. Mean(SD) residual refraction at one-month was -0.06 (1.33) for Anterion, -0.07(0.54) for IOL Master and 0.23(0.6) for Lenstar

Conclusions:

Lenstar had the maximum repeatability for the parameters studied, followed by IOL Master and Anterion. The three devices can be used interchangeably for WTW, but not for AL, AD and Km.Anterion had the least IOL prediction error followed by IOL Master and Lenstar.

Financial Disclosure:

None