Related Experiment Videos
Patterns of visual field defects in chronic angle-closure glaucoma with different disease severity
Ling-Ing Lau1, Catherine Jui-ling Liu, Joe Ching-Kuang Chou
1Department of Ophthalmology, Taipei Veterans General Hospital, No. 201 Section 2 Shih-Pai Road, Shih-Pai, Taipei 11217, Taiwan.
Ophthalmology
|October 3, 2003
Summary
In early chronic angle-closure glaucoma (CACG), nasal visual field loss is most common. The nasal area shows worse mean deviation (MD) than arcuate and paracentral areas in mild to severe CACG.
Area of Science:
- Ophthalmology
- Glaucoma Research
- Visual Field Analysis
Background:
- Chronic angle-closure glaucoma (CACG) is a significant cause of vision loss.
- Understanding visual field defect patterns is crucial for managing CACG progression.
- Optic nerve damage extent influences visual field loss patterns.
Purpose of the Study:
- To investigate the visual field defect patterns in patients with CACG.
- To correlate these patterns with the severity of optic nerve damage.
Main Methods:
- A prospective observational study of 146 Asian patients with well-controlled CACG.
- Visual field tests were conducted using Humphrey Field Analyzer 24-2 program.
- 110 eligible visual fields were categorized into mild, moderate, severe, and end-stage groups.
Main Results:
- Nasal area damage was most frequent in the mild CACG group (52-58% of eyes).
- In moderate CACG, nasal and arcuate defects were common in the superior hemifield; all three areas were affected in the inferior hemifield.
- The nasal area exhibited the worst mean deviation (MD) across mild, moderate, and severe groups (P < 0.001).
Conclusions:
- Nasal visual field loss is the predominant pattern in early-stage CACG.
- The nasal area's MD is significantly worse than arcuate and paracentral areas in mild to severe CACG.
- These findings aid in early detection and management of CACG visual field defects.