Effect of Peripheral Laser Iridotomy Placement on Post-operative Visual Function

Not Applicable

• Conditions: Glaucoma, Angle-Closure

• Registration Number: NCT03352492
• Lead Sponsor: University of the Incarnate Word

Brief Summary

To evaluate the influence of superior versus temporal laser peripheral iridotomy location on post-operative visual acuity and contrast sensitivity.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2017-11-20
• Study First Submitted QC: 2017-11-20
• Study First Posted: 2017-11-24
• Study Start: 2018-01-01
• Status Verified: 2020-04
• Last Update Submitted: 2020-04-12
• Last Update Posted: 2020-04-14
• Primary Completion: 2021-02
• Study Completion: 2021-02

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 200

Inclusion Criteria

• Angle-closure glaucoma
• Angle-closure glaucoma suspect

Exclusion Criteria

• Monocular status
• Previous intraocular surgery
• Visual acuity worse than 20/40
• Prior episode of acute angle-closure glaucoma
• Pregnancy

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Change in visual acuity	30 days post-operative	Change from baseline best corrected visual acuity evaluated in number of letters correctly read on the ETDRS chart

Secondary Outcome Measures

Name	Time	Method
Change in Peli-Robson contrast sensitivity	30 days post-operative	Change from baseline in contrast sensitivity evaluated in number of letters correctly read on the Peli-Robson chart
Change in CSV-1000 contrast sensitivity	30 days post-operative	Change from baseline in contrast sensitivity evaluated using the number of correct responses on the CSV-1000 test

Trial Locations

Locations (1)

University of the Incarnate Word; 🇺🇸 San Antonio, Texas, United States