Acute primary angle-closure: long-term intraocular pressure outcome in Asian eyes
Section snippets
Methods
This study was conducted by retrospectively reviewing the charts of consecutive patients who presented with acute primary angle-closure to the National University Hospital, Singapore, from January 1990 to December 1994.
The following criteria were used to define cases of acute primary angle-closure: (1) presence of at least two of the following symptoms: ocular or periocular pain, nausea and/or vomiting, an antecedent history of intermittent blurring of vision with haloes; (2) presenting
Results
From January 1990 to December 1994, a total of 96 consecutive Asian patients (111 eyes) presented with acute primary angle-closure. Fifteen patients (15.6%) had bilateral disease. The mean follow-up period was 50.3 months (range, 9 to 107 months).
The demographic data are summarized in Table 1. The majority of patients were Chinese and female, and the mean age was 63.7 years (range, 39 to 92 years).
The presenting profile, in terms of duration of symptoms and initial intraocular pressure, is
Discussion
Studies on the intraocular pressure outcome after acute primary angle-closure in Caucasian populations found that intraocular pressure was controlled with surgical peripheral iridectomy or laser peripheral iridotomy alone in 65% to 76% of eyes.10, 14, 15, 16 If additional medication was used, intraocular pressure control was achieved in 84% to 99% of eyes. A randomized, controlled trial between surgical peripheral iridectomy and laser peripheral iridotomy in the United Kingdom found intraocular
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Requests for reprints to Paul T. K. Chew, FRCS, FRCOphth, Department of Ophthalmology, National University Hospital, 5 Lower Kent Ridge Rd, Singapore 119074; e-mail: [email protected]