Choroidal Detachment in a Patient on a CPAP Therapy.

Objective: The aim of the study is to present a rare case of choroidal detachment in a patient on continuous positive airway pressure (CPAP) therapy. Material and Method: A 76-year-old man on CPAP therapy due to obstructive sleep apnea presented to the ocular oncology clinic with a suspicion of an intraocular tumor. He complained of tunnel vision in red, floaters and flashes in the visual field, and irritation of the left eye since 13 weeks. Results: On initial assessment, the best corrected visual acuity (BCVA) of the left eye was 1.0, and the intraocular pressure (IOP) was 21 mmHg. The examination revealed dilated, tortuous episcleral vessels and a massive choroidal effusion. The patient was diagnosed with choroidal detachment and was treated with topical dexamethasone 0.1% and cyclopentolate. On a follow-up visit 3 weeks later, the BCVA got worse to hand movements and IOP increased to 27 mmHg. The patient received a combination of dorzolamide and timolol in addition to the aforementioned treatment. Over the following 16 weeks, a gradual resolution of the choroidal detachment was documented. Conclusions: The CPAP treatment is a possible, though unproven, contributor to the choroidal detachment. The patient improved during corticosteroid, cycloplegic, and IOP-lowering treatment.