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

Glaucoma, Angle-Closure Clinical Trial

Official title:

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

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03352492
• Other study ID #: 16-02-003
• Status: Recruiting
• Phase: N/A
• Start date: January 1, 2018
• Est. completion date: February 2021

Study information

• Verified date: April 2020
• Source: University of the Incarnate Word
• Contact: Ana Hagendorf, PhD
• Phone: 210-805-3036
• Email: wandless[@]uiwtx.edu
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 200
• Est. completion date: February 2021
• Est. primary completion date: February 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

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

Related Conditions & MeSH terms

• Glaucoma, Angle-Closure

Intervention

Procedure:
• Superior laser peripheral iridotomy
Iridotomy placement between 11:00 and 1:00 o'clock
• Temporal laser peripheral iridotomy
Iridotomy placement at 3:00 or 9:00 o'clock

Locations

Country	Name	City	State
United States	University of the Incarnate Word	San Antonio	Texas

Sponsors (1)

Lead Sponsor	Collaborator
University of the Incarnate Word

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in visual acuity	Change from baseline best corrected visual acuity evaluated in number of letters correctly read on the ETDRS chart	30 days post-operative
Secondary	Change in Peli-Robson contrast sensitivity	Change from baseline in contrast sensitivity evaluated in number of letters correctly read on the Peli-Robson chart	30 days post-operative
Secondary	Change in CSV-1000 contrast sensitivity	Change from baseline in contrast sensitivity evaluated using the number of correct responses on the CSV-1000 test	30 days post-operative