Table 1. Demographic characteristics and polysomnographic results of enrolled patients.

BMI = body mass index; HTN = hypertension; AHI = apnea-hypopnea index; OSA = obstructive sleep apnea; RDI = respiratory disturbance index; ODI = oxygen desaturation index; VA = visual acuity; logMAR = logarithm of the minimum angle of resolution; NPA = non-perfusion area; DD = disc diameter; FA = fluorescein angiography; Abs = absence; Pre = presence.