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Abstract #6379 Published in IGR 3-2
The visual field following acute primary angle closure
Aung T; Looi ALG; Chew PTKActa Ophthalmologica Scandinavica 2001; 79: 298-300
PURPOSE: To determine the frequency and type of visual field loss six months after an episode of acute primary-angle closure (APAC), and to identify risk factors for the development of such field loss. METHODS: This was a cross-sectional observational study. All patients who suffered from an episode of APAC at two Singapore hospitals over a one-year period underwent static automated threshold perimetry six months after presentation. RESULTS: Thirty-eight percent of (29) patients with APAC had significant visual field defects six months after the acute episode. The majority of those with abnormal fields had hemifield defects, consistent with nerve fiber bundle pattern loss. Those with pre-existing chronic glaucoma or who develop a rise in intraocular pressure during follow-up are at risk for visual field loss. The risk of visual field loss is also significant if the duration of symptoms exceeds seven days. CONCLUSIONS: The frequency of visual field loss at six months after APAC was low at only 39%. As the majority of eyes had no evidence of detectable functional damage developing as a consequence of the acute episode, APAC may not be blinding if treated promptly and adequately.
Dr T. Aung, Singapore National Eye Centre, Singapore
Classification:
6.6.2 Automated (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
9.3.1 Acute primary angle closure glaucoma (pupillary block) (Part of: 9 Clinical forms of glaucomas > 9.3 Primary angle closure glaucomas)
