TA is a 43-year-old man who presented to his ophthalmologist with complaints of intermittent pain and blurred vision in his right eye. The visual acuity was 20/20 in both eyes and intraocular pressure was measured to be 21 mm in the right eye and 16 mm in the left. Slit-lamp examination showed narrowing of the temporal angle of the right eye and gonioscopy confirmed a closed angle temporally but a 2+ open angle superiorly, nasally, and inferiorly. The opposite eye had a 2 to 3+ open angle for 360°.
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