Posters

Plusoptix A12: a comparison with non cycloplegic and cycloplegic refraction

Poster Details

First Author: S.Ech Cherif El Kettani MOROCCO

Co Author(s): I. El Jazouli   S. El Maroufi   A. Bennis   F. Chraibi   M. Abdellaoui   I. Benatiya Andaloussi     

Abstract Details

Purpose:

The aim of our study is to compare the objective refractive measurements of noncycloplegic photoscreener Plusoptix A12 with non cycloplegic and cycloplegic standard autorefractor in children.

Setting:

Ophtalmology Department, HASSAN II hospital,SIDI MOHAMED BEN ABDELLAH University, FEZ MOROCCO

Methods:

A total of 73 eyes of 37 children, prospectively included, age ranging from 2 to 16 years old underwent vision screening.  Before administration with the cycloplegia treatment 1% cyclopentolate hydrochloride, children underwent refraction measurement with the Plusoptix A12 and with the autorefractometer (Topcon). A refraction was then performed after cycloplegia with the autrefractometer . The clinical parameters compared were the following: spherical and cylindrical values, and cylinder axis. The statistical calculation was performed with paired t-tests and Pearson's correlation . All the data were analyzed with SPSS statistical package .

Results:

The median age was 7.58 years.The mean results were as follows, non cycloplegic refraction: sphere,1,44±1,45D; cylinder,-0.85±0.93D; axis,99,73±66.10, cycloplegic refraction: sphere,2.30±1,76D; cylinder,-1,05±1,10D; axis,94,55±66.28 and Plusoptix A12: sphere,1,82±1,44D; cylinder,-1,02±1,08D; axis,92,39±62,10.The sphere values were different comparing both cycloplegic and non cycloplegic measurements (p=0.000), and cycloplegic measurements with Plusoptix (p=0,000). Plusoptix mean value being closer to the cycloplegic refraction,with a strong correlation(Pearson;r=0,764).For the cylinder there was no difference between Plusoptix and cycloplegic refraction(p=0,630) whereas there was one concerning non cycloplegic and cycloplegic measurements (p=0,000).There was no difference between the axis concerning the 3 methods (p=0.000).

Conclusions:

Plusoptix A12 is reliable concerning the cylinder for both values and axis, with more precision for the cylindrical value than the non cycloplegic refraction using the autorefractometer. As regards the sphere measurement even though not being as accurate as the cycloplegic measurements , Plusoptix appears more performant than non cycloplegic autoreractometer objective refraction.

Financial Disclosure:

None