Posters

Comparison of reading parameters by MNREAD acuity chart in phakic, monofocal and multifocal patients

Poster Details

First Author: D.Shah INDIA

Co Author(s):    S. Haldipurkar   V. Shetty   Z. Khatib   R. Dhamankar   S. Tanwar   P. Sankhe     

Abstract Details

Purpose:

To compare reading speed, reading acuity and critical print size of phakics and pseudophakic (monofocal and multifocal) patients in two different illuminations.

Setting:

Laxmi Eye Institute, tertiary eye care centre, Panvel, Navi Mumbai

Methods:

It was a cross-sectional, single-centre clinical study done in 6 months (August 2017 to January 2018). Bilaterally phakics, monofocal or multifocal IOL implanted patients were enrolled. Patients were made to read the MNREAD acuity chart binocularly till the last visible line at a reading distance (40 cms). Reading speed (words read per minute-wpm), reading acuity (logMAR) and critical print size (log Mar) was measured in two illuminations: low - < 100 lux and high - > 100 lux. Illumination was measured by rheostat.

Results:

Reading speed in lower illumination was 196,185 and 160 and in higher illumination was 205,172 and 167 in phakic, monofocal and multifocal groups respectively. In lower illumination reading speed was found to be slightly better in phakics compared to multifocal. In higher illuminations reading speed in phakics was better than monofocal and multifocal groups (p=0.001). Reading acuity was significantly better in phakic group compared to monofocal and multifocal groups in both illuminations. Critical print size showed no significant difference between all groups in both illuminations. Multiple regression analysis showed age did not affect variables and results in study.

Conclusions:

No significant difference between monofocal and multifocal groups with regards reading parameters (reading speed, reading acuity and critical print size). Illumination does not have an effect on reading parameters. Age does not affect reading parameters.

Financial Disclosure:

None