Researchers recently found a high prevalence of severe obstructive sleep apnea (OSA) among patients newly diagnosed with retinal vein occlusion (RVO), suggesting that these patients should be strongly considered for polysomnography.

This prospective, cross-sectional study evaluated 27 adult patients (37% female) who were a mean age of 69.6 years old with a new diagnosis of RVO confirmed with intravenous fluorescein angiography. Participants completed two office-administered questionnaires screening for OSA at presentation. Findings were then validated against polysomnography.

Based on polysomnography, the team discovered 96% of patients with RVO were diagnosed with OSA, 41% of whom had severe OSA. They noted that the Berlin questionnaire had a sensitivity of 43% and a specificity of 67%, while the STOP-BANG questionnaire had a sensitivity of 86% and a specificity of 50%.

“The use of in-office questionnaires may aid in triaging urgency of referrals,” the study authors concluded in their paper.

Felfeli T, Alon R, Adel FA, et al. Screening for obstructive sleep apnea amongst patients with retinal vein occlusion. Can J Ophthalmol. April 18, 2020. [Epub ahead of print].