The Analysis of Ocular Deviations Between Dominant and Non-dominant Eye Using Video-oculography (VOG) in Intermittent Exotropia

Inje University

Status: Unknown

Conditions: Intermittent Exotropia; Strabismus

Treatments: Diagnostic Test: Video-oculography; Diagnostic Test: Alternative prism cover test

Study type: Interventional

Funder types: Other

Identifiers

NCT03641040

IJ1357913579

Details and patient eligibility

About

Fifteen subjects with intermittent exotropia were included. The subjects were asked to fixate on a black-on-white optotype at 1 m, which subtended a visual angle of 50 min of arc, equating to a Snellen optotype of 20/200. The video files and data about ocular deviations were obtained using VOG with alternate cover test. Investigators analyzed angles of ocular deviations in dominant and non-dominant eyes, compared with values of VOG and deviation angles of the alternative prism cover test.

Enrollment: 30 estimated patients

Sex: All

Ages: 5+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Visual acuity >= 1.0/1.0
• Intermittent exotropia
• Cooperative

Exclusion criteria

• Other eye disease
• Have hyperopia, myopia > 2 diopter
• Have horizontal strabismus > 50 prism diopter
• Not cooperative, no agree

Trial design

Primary purpose: Diagnostic

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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30 participants in 2 patient groups

VOG group

Experimental group

Description:

Measurement: Video-oculography(VOG) measure and analyze angles of ocular deviations between dominant and non-dominant eye using VOG with alternate cover.

Treatment:

Diagnostic Test: Video-oculography

APCT group

Active Comparator group

Description:

Measurement: Alternative prism cover test(APCT) measure and analyze angles of ocular deviations between dominant and non-dominant eye using APCT

Treatment:

Diagnostic Test: Alternative prism cover test