Binocular visual field in adults with horizontal strabismus and driving requirements.

ABSTRACT:

Objective

To determine the horizontal extent of the binocular visual field (BVF) in subjects with horizontal strabismus and whether the BVF falls below the driving standard.

Methods and analysis

Adults with congenital esotropia and infantile exotropia ≤45 Prism Dioptres (PD), and subjects with orthotropia were recruited. The manifest angle of deviation was measured using a simultaneous prism cover test. Monocular Visual Field (MVF) and BVF were measured using the Esterman visual field test. Subjects with diplopia or a manifest angle of strabismus that varied by>8PD or the present of a vertical tropia >8PD were excluded.

Results

Forty-nine subjects were included: 10 with orthotropia, 20 with exotropia and 19 with esotropia. The horizontal extent of BVF (degrees) was si

SUBMITTER: Alfaqawi F 

PROVIDER: S-EPMC10366138 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature