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

University of the Incarnate Word

Status: Unknown

Conditions: Glaucoma, Angle-Closure

Treatments: Procedure: Superior laser peripheral iridotomy; Procedure: Temporal laser peripheral iridotomy

Study type: Interventional

Funder types: Other

Identifiers

NCT03352492

16-02-003

Details and patient eligibility

About

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

Enrollment: 200 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Supportive Care

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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200 participants in 2 patient groups

Bilateral iridotomy: Superior

Experimental group

Description:

Each subject in this single-arm study undergoes bilateral laser peripheral iridotomy surgery. Each participant will undergo superior laser peripheral iridotomy in one eye and temporal laser peripheral iridotomy in the fellow eye.

Treatment:

Procedure: Superior laser peripheral iridotomy

Bilateral iridotomy: Temporal

Experimental group

Description:

Each subject in this single-arm study undergoes bilateral laser peripheral iridotomy surgery. Each participant will undergo superior laser peripheral iridotomy in one eye and temporal laser peripheral iridotomy in the fellow eye.

Treatment:

Procedure: Temporal laser peripheral iridotomy