Acute primary angle-closure glaucoma (PACG) is an important cause of blindness in East Asia.1 It is estimated that the overall prevalence of PACG will increase from 1.44% to 2.01% from 2020 to 2050.2 Acute PACG is typically related to increased high intraocular pressure (IOP), with symptoms including red eye, blurred vision, nausea, vomiting, and headache. Delay in timely IOPlowering treatment can result in permanent optic nerve damage and vision loss.3 Axial hyperopia is the main ocular risk factor for development of primary closure of the anterior chamber angle, while its systemic risk factors include older age, east Asian ethnic origin, and female sex.4 Although generally deemed to be a bilateral condition, PACG often occurs unilaterally, and bilateral simultaneous onset is very rare. For patients with unilateral onset, even if the effect of treatment is not satisfactory, relatively good outcomes can be achieved by carrying out early intervention on the fellow eye. However, for bilateral cases, the condition is usually severe and often comes with a poor prognosis. Therefore, appropriate preventive measures are critical. Here, we present a case of bilateral simultaneous acute PACG related to hyperopia.
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