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Abstract #15977 Published in IGR 2-3
Retinal and subhyaloid hemorrhage as a complication of laser iridectomy for primary angle-closure glaucoma.
Obana A; Gohto Y; Ueda N; Miki T; Cho A; Suzuki YArchives of Ophthalmology 2000; 118: 1449-51
This short article presents 4 cases, two of which had a retinal hemorrhage after laser iridectomy for primary angle-closure glaucoma and the other two a hemorrhage mainly in the subhyaloid space. All patients started with very high pressures after angle-closure glaucoma. The retinal hemorrhage is a rare complication. It has been suggested that acute lowering of the intraocular pressure was involved in the pathogenesis. Autoregulatory defects have also been suggested. The authors suggest another hypothesis as the cause of subhyaloid hemorrhage in their two patients. In the acute phase of angle-closure glaucoma the volume of aqueous humor in the posterior chamber is markedly increased. This may have resulted in a significant displacement of the vitreous gel. Following laser iridectomy aqueous flows suddenly from the posterior chamber to the anterior chamber. The authors propose that this has caused a forward displacement of the vitreous and a contraction of the vitreous gel with disruption of small vessels on the retinal surface. Posterior vitreous detachment was observed in these two patients.
Department of Ophthalmology, Osaka City University Medical School, Asahi-machi 1-4-3, Abeno-ku, Osaka City 545-8585, Japan. akira-kun@med.osaka-cu.ac.jp
Classification:
12.2 Laser iridotomy (Part of: 12 Surgical treatment)
