Measuring ocular torsion and its variations using different nonmydriatic fundus photographic methods.

ABSTRACT:

Purpose

To compare the variations in ocular torsion measurements made using different fundus photographic methods.

Methods

We enrolled subjects with three conditions: (1) patients with intermittent exotropia (IXT) (n = 44), (2) patients with unilateral superior oblique palsy (SOP) (n = 10), and (3) normal subjects as controls (n = 85). Ocular torsion was measured by disc-center-fovea angle (DFA) using three different imaging modalities: (1) conventional fundus photography (CFP) with a 45° field of view (FV), (2) wide-field fundus photography (WFP) with a 200° FV, and (3) optical coherence tomography (OCT) with a 55° FV.

Results

In the IXT group, the DFAs in the right and left eyes were 5.70±3.35° and 6.37±3.36°, respectively, for CFP, 8.39±5.24° and 8.61±3.67° for WFP

SUBMITTER: Kang H 

PROVIDER: S-EPMC7755211 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature