Ultrasound biomicroscopy (UBM) of malignant glaucoma. (a) The patient with a history of angle closure glaucoma and a patent laser iridotomy presented after glaucoma filtration surgery with elevated intraocular pressure. UBM showed shallow anterior chamber and anterior rotation of the ciliary body. (b) After treatment with cycloplegic medication and topical steroids, the anterior chamber deepened and the ciliary body returned to normal position. C, cornea; I, iris; B, ciliary body; and M, hyaloid membrane | Quigley H. A. Angle-closure glaucoma-simpler answers to complex mechanisms: LXVI Edward Jackson Memorial Lecture. American Journal of Ophthalmology. 2009;148(5):657.e1–669.e1. doi: 10.1016/j.ajo.2009.08.009.

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