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Middle East Afr J Ophthalmol. 2012 Jul-Sep;19(3):346-8. doi: 10.4103/0974-9233.97962.

Vitreous asteroid hyalosis prolapse into the anterior chamber simulating iris metastasis.

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Ocular Oncology Service, Wills Eye Institute, Thomas Jefferson University, Philadelphia, PA 19107, USA.


Two asymptomatic elderly women who underwent cataract extraction 7 or more years previously and with intraocular lens placement presented with a linear bead-like white multinodular mass in the inferior angle simulating iris metastasis versus large inflammatory precipitates. There was no iris infiltration. In the first case, the posterior lens capsule was intact and there was no evidence of gelatinous vitreous in the anterior chamber, whereas in the second case, the capsule was open and there was gelatinous vitreous prolapse. In both cases, there was asteroid hyalosis in the vitreous. Both patients were diagnosed with prolapsed vitreous asteroid hyalosis into the anterior chamber and managed with observation. Vitreous asteroid hyalosis can prolapse into the anterior chamber of pseudophakic elderly patients with or without capsular opening and can simulate an intraocular tumor.


Anterior Chamber; Asteroid Hyalosis; Iris; Metastasis; Prolapse; Vitreous

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