Narrow Angle, Pupillary Block

This 60 year-old man has a strong family history of glaucoma. He was referred because his local optometrist found his iridocorneal angles to be narrow. He has mild hyperopia with a spherical equivalent of +0.75 OD and +1.25 OS. His intraocular pressures are normal at 12 mmHg OD and 15 mmHg OS. His optic nerve heads are completely normal.