One eye iridotomy, contralateral eye no intervention

Peripheral iridotomy (size >200µm)

GAT: ≥24mmHg or ≥22mmHg on two separate occasions

The presence of glaucomatous optic neuropathy with visual field loss compatible with glaucoma. Glaucomatous optic neuropathy defined as loss of neuroretinal rim (notch or erosion), a vertical cup-to-disc ratio of more than 0.7, nerve fiber layer defect attributable to glaucoma, or both.

Presence of at least 2 of the following symptoms: ocular or periocular pain; nausea, vomiting, or both; an antecedent history of intermittent blurring of vision with haloes and IOP of more than 30 mmHg and presence of at least 3 of the following signs: conjunctival injection, corneal epithelial edema, mid-dilated unreactive pupil, glaukomflecken, and shallow anterior chamber;