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What's the Choroid Got to Do With Angle Closure?
Harry A. Quigley, MD
Arch Ophthalmol. 2009;127(5):693-694.
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| Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings. |
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Angle-closure glaucoma (ACG) is often considered to be a simple disease that is cured by laser iridotomy. However, recent studies with new imaging modalities are providing insights into the more complex nature of ACG. Kumar and colleagues1 at the Singapore National Eye Center confirm previous reports2-4 that eyes with primary angle closure can demonstrate abnormal separations between the choroid and sclera on ultrasonic biomicroscopy (UBM). These findings are consistent with the hypothesis that expansion of the choroid contributes to the development of primary angle closure in some eyes.
Population-based studies show that ACG in both its acute and nonacute forms is about half as common as open-angle glaucoma worldwide,5 but ACG is substantially more prevalent in Asian individuals, particularly Chinese individuals, than in other ethnicities.6 It has been extensively documented that the major risk factors for ACG include older age, female sex, and small ocular dimensions, . . . [Full Text of this Article]
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