Clinical appearance was unchanged 8 months later, however, intraocular pressure was 11 mm Hg OD and 2 mm Hg OS. The bleb was Siedel testnegative. Gonioscopy of the right eye demonstrated normal-appearing lightly pigmented meshwork. Gonioscopy of the left eye demonstrated lightly pigmented trabecular meshwork, without evidence for a cyclodialysis cleft, cyclodestruction, or other basis for hypotony. Intraocular pressure during 15-month follow-up remained consistently asymmetric (range, 8-16 mm Hg OD and 2-9 mm Hg OS). During this period of observation, the morphologic bleb features remained stable without secondarycomplications from hypotony. Ophthalmic treatment during this interval included oral and topical nonsteroidal anti-inflammatory drugs and topical corticosteroid agents.