Official ESCRS | European Society of Cataract & Refractive Surgeons
Barcelona 2015 Programme Registration Glaucoma Day 2015 Exhibition Virtual Exhibition Satellite Meetings Hotel Booking Star Alliance

Take a look inside the London 2014 Congress


Then register to join us
in Barcelona!


Search Abstracts by author or title
(results will display both Free Papers & Poster)

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


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.


University of Valencia, Valencia, Spain


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.


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.


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:


Back to Poster listing