Binocular coordination and reading performance during smartphone reading in intermittent exotropia.

ABSTRACT:

Purpose

This study aimed to evaluate binocular coordination using video-oculography during smartphone reading in patients with intermittent exotropia compared to individuals with normal vision.

Patients and methods

Eleven youth and adult patients with intermittent exotropia (21.9±9.3 years) and 15 control subjects (26.6±4.3 years) were examined. Eye movements were recorded during smartphone reading at 50, 30, and 20 cm using video-oculography. The loss of binocular coordination was tentatively defined as a horizontal disparity greater than 2°. The proportion of monocular viewing was the percentage of time for which binocularity was lost during smartphone reading. The proportion of monocular viewing, the reading speed, and the correlation between proportion of monocular viewi

SUBMITTER: Hirota M 

PROVIDER: S-EPMC6200431 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature