Korean J Ophthalmol.  2020 Oct;34(5):353-360. 10.3341/kjo.2020.0033.

Profiles and Clinical Characteristics of Newly Diagnosed Glaucoma in Urban Korea: A Multicenter Study

• Hong C
• Hong SW
• Park CK
• Sung KR
• Kim Cs
• on behalf of Korean Glaucoma Society

• KMID: 2507385
• DOI: http://doi.org/10.3341/kjo.2020.0033

Abstract

Purpose
To explore the clinical characteristics and profiles of newly diagnosed glaucoma subtypes in urban Korea.
Methods
All newly diagnosed glaucoma patients enrolled in the participating ophthalmology outpatient clinics were in-cluded. A review of medical history including family history of glaucoma was conducted. The patients underwent complete ophthalmologic examinations including visual field test. The diagnosis of glaucoma was based on the International Society of Geographical and Epidemiological Ophthalmology criteria developed by glaucoma specialists.
Results
A total of 198,671 patients visited the participating ophthalmology outpatient clinics during the study period (from January 1, 2001 to June 30, 2016), of which 5,530 (2.8%) were diagnosed with glaucoma. The mean age of the newly diag-nosed glaucoma patients was 52.0 ± 17.3 years (range, 6 to 89) and 2,830 patients were male (51.2%). The mean untreated in-traocular pressure and vertical cup-to-disc ratio of the optic nerve head of newly diagnosed glaucoma eyes were 22.1 ± 10.6 mmHg and 0.66 ± 0.22, respectively. The most frequently observed subtypes of glaucoma were: normal tension glaucoma (33.0%) primary open-angle glaucoma (28.4%), ocular hypertension (11.1%), chronic angle-closure glaucoma (6.8%), neovas-cular glaucoma (5.2%), glaucoma associated with inflammation (3.8%), acute angle-closure glaucoma (3.3%), and glaucoma associated with aphakia or pseudophakia (2.2%).
Conclusions
Normal tension glaucoma was the most frequently observed glaucoma subtype in urban ophthalmology outpa-tient clinics in Korea.

Keyword

Epidemiology; Glaucoma; Low tension glaucoma; Open-angle glaucoma