Case links red light mask to secondary glaucoma

Ciliochoroidal effusions accompanied severe intraocular pressure elevation following recent use of an at-home red light therapy device.

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A 43-year-old patient developed acute bilateral angle-closure glaucoma after using an at-home red light therapy mask for 2 weeks.
2

Intraocular pressure was 60 to 65 mm Hg in both eyes, and ultrasound biomicroscopy showed bilateral ciliochoroidal effusions.
3

The patient received pressure-lowering medications, cyclopentolate, corticosteroids, and instructions to stop using the mask.
4

Ciliochoroidal effusions resolved progressively, and visual acuity returned to 20/20 in both eyes by 2 months.
5

The authors could not establish causality, and the mechanism linking red light exposure to ciliochoroidal effusions remains unknown.

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