Prophylactic Nd:YAG-laser iridotomy versus surgical iridectomy: a randomized, prospective study

Area of Science:

• Ophthalmology
• Glaucoma Research
• Surgical Innovation

Background:

• Angle-closure glaucoma poses a significant risk to vision.
• Both surgical iridectomy and Nd:YAG-laser iridotomy are established prophylactic treatments.
• Direct comparative data on the superiority of these procedures is limited.

Purpose of the Study:

• To compare the efficacy and patient acceptance of surgical iridectomy versus Nd:YAG-laser iridotomy.
• To evaluate the impact of each procedure on visual acuity, intraocular pressure, anterior chamber depth, and endothelial cell count.
• To determine the preferred method for acute angle-closure glaucoma prophylaxis.

Main Methods:

• Prospective randomized study involving 30 patients with acute angle-closure glaucoma.
• One eye treated with surgical iridectomy, the fellow eye with Nd:YAG-laser iridotomy.
• Follow-up examinations at 1, 6, and 12 months post-treatment.

Main Results:

• No significant differences in visual acuity or intraocular pressure between the two groups.
• Both procedures increased peripheral anterior chamber depth, improving gonioscopic visibility.
• Nd:YAG-laser iridotomy group maintained endothelial cell density, unlike surgical iridectomy group (slight decrease).
• Patients reported better subjective acceptance of Nd:YAG-laser iridotomy.

Conclusions:

• Surgical iridectomy and Nd:YAG-laser iridotomy are equivalent in managing intraocular pressure and visual acuity for angle-closure glaucoma.
• Nd:YAG-laser iridotomy is suggested as the preferable prophylactic method due to preserved endothelial cells and superior patient acceptance.