Outcomes of primary angle closure glaucoma management

Area of Science:

• Ophthalmology
• Glaucoma Research
• Laser Therapy

Background:

• Primary angle closure glaucoma (PACG) is a significant cause of vision loss.
• Effective management of intraocular pressure (IOP) is crucial in PACG.
• Nd:YAG laser iridotomy is a common initial treatment for PACG.

Purpose of the Study:

• To evaluate the effectiveness of primary angle closure glaucoma (PACG) management on intraocular pressure (IOP).
• To assess the long-term outcomes of Nd:YAG laser iridotomy in PACG patients.
• To determine the need for additional therapies post-iridotomy.

Main Methods:

• Cross-sectional study of 244 PACG eyes treated with Nd:YAG laser iridotomy.
• Follow-up assessments included IOP, visual acuity, gonioscopy, and RNFL thickness.
• Iridotomy success was defined by the absence of further medical/surgical intervention or vision loss.

Main Results:

• Nd:YAG laser iridotomy alone controlled PACG in only 15.2% of cases.
• The majority required further treatment: 62.3% needed medication, 9.4% trabeculectomy, 7.4% phacoemulsification.
• Prophylactic iridotomy in fellow eyes was effective in preventing acute attacks.

Conclusions:

• Most PACG eyes require additional medical or surgical management after Nd:YAG laser iridotomy.
• Medication was the most frequent additional therapy needed.
• Early phacoemulsification may be more effective in preventing IOP elevation in uncontrolled PACG.