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Evaluation of the accommodation response under different accommodative demands over short-term near visual tasks, using a Hartmann-Shack wavefront aberrometer

Poster Details

First Author: A.Recchioni SPAIN

Co Author(s):    A. Moulakaki   J. Esteve-Taboada   A. Del Aguila-Carrasco   R. Montes-Mico           

Abstract Details

Purpose:

To examine the accommodation response of the human eye, over sustained reading periods with a smartphone and to identify if differences at different stimulus vergence exist.

Setting:

University of Valencia, Valencia, Spain

Methods:

In this study, eighteen young adult subjects were enrolled. The experiment was divided into two sessions. Each session was followed by relaxed and stressed with a smartphone accommodation mechanism of the eye where the stressed condition consists of a 10 minutes of silent reading at 25 cm. After each session three measurements of accommodation response were obtained at different stimulus vergences, starting from 0 D ending up to 4 D (with 1 D step size), using a Hartmann-Shack wavefront aberrometer.

Results:

The mean values of the accommodation response were similar for both sessions and for all subjects. A lag of accommodation was noticeable in all accommodative demands, except form the 0 D of accommodative demand.

Conclusions:

After stressing accommodation with a smartphone during 10 minutes of silent reading at 25 cm we didn’t find any change in the accommodative response compared with relaxed accommodation state.

Financial Disclosure:

NONE

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