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

Not Applicable

• Conditions: Strabismus; Intermittent Exotropia
• Interventions: Diagnostic Test: Video-oculography; Diagnostic Test: Alternative prism cover test

• Registration Number: NCT03641040
• Lead Sponsor: Inje University

Brief Summary

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.

Detailed Description

Not available

Study Timeline

• Study Start: 2017-12-21
• Status Verified: 2018-08
• Study First Submitted: 2018-08-19
• Study First Submitted QC: 2018-08-19
• Study First Posted: 2018-08-21
• Last Update Submitted: 2018-08-21
• Last Update Posted: 2018-08-23
• Primary Completion: 2019-03-31
• Study Completion: 2020-03-31

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 30

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
VOG group	Video-oculography	Measurement: Video-oculography(VOG) measure and analyze angles of ocular deviations between dominant and non-dominant eye using VOG with alternate cover.
APCT group	Alternative prism cover test	Measurement: Alternative prism cover test(APCT) measure and analyze angles of ocular deviations between dominant and non-dominant eye using APCT

Primary Outcome Measures

Name	Time	Method
The angles of ocular deviations between dominant and non-dominant eye using VOG with alternate cover	2 weeks after approval	The angles of ocular deviations between dominant and non-dominant eye using VOG with alternate cover

Trial Locations

Locations (1)

Busan Paik hospital; 🇰🇷 Busan, Korea, Republic of