Primary angle closure glaucoma: a descriptive study in Scottish Caucasians.

Area of Science:

• Ophthalmology
• Glaucoma Research
• Public Health

Background:

• Primary angle closure glaucoma (PACG) is a significant cause of vision loss globally, particularly in Asian populations.
• Its prevalence and clinical characteristics in Caucasian populations are less well-defined.
• Understanding PACG's impact in diverse ethnicities is crucial for effective public health strategies.

Purpose of the Study:

• To detail the ocular and demographic features of Caucasian patients newly diagnosed with PACG.
• To quantify the proportion of new glaucoma cases at a tertiary hospital that are attributable to PACG.
• To estimate the incidence of PACG and acute PACG in the Caucasian population.

Main Methods:

• Retrospective review of Caucasian patients diagnosed with narrow angles, primary angle closure (PAC), acute PAC, or PACG over two years.
• Comparison of demographic and ocular variables between diagnostic groups.
• Statistical analysis using paired t-tests and chi-squared tests; incidence calculated using 2001 Scotland census data.

Main Results:

• 104 patients were analyzed: 23.1% had narrow angles, 28.8% PAC, and 48.1% PACG.
• PACG represented 22.9% of all newly diagnosed glaucoma cases.
• Estimated incidence of new PACG in the over-45 Caucasian population was 14.8 per 100,000.

Conclusions:

• PACG is less common in Caucasians than in Asian populations but is not as rare as previously perceived.
• PACG constitutes a substantial proportion of the glaucoma diagnostic workload in a tertiary care setting.
• Further research into PACG in Caucasian populations is warranted to refine understanding and management strategies.