Citation Information :
Iyer SR, Ramchandani S. Increase in the Field of Vision in a Patient with Primary Open-angle Glaucoma and Obstructive Sleep Apnea with Usage of Continuous Positive Airway Pressure. Indian Sleep Med 2022; 17 (2):50-55.
Obstructive sleep apnea (OSA) has been reported to affect hypoxia-sensitive tissues (retina and optic tract) adversely. An 81-year-old gentleman, a known case of primary angle glaucoma, hypertension, and type 2 diabetes with visual field defects, was on established therapy, but there was no improvement in vision. He was evaluated for his sleep complaints viz. loud and habitual snoring. Polysomnography revealed obstructive sleep apnea predominantly in rapid eye movement (REM) sleep. Compared with non-rapid eye movement (NREM) sleep, REM sleep is associated with higher sympathetic activity and cardiovascular instability. Regular usage of continuous positive airway pressure during sleep was instituted. After 4 months of this mode of therapy, the perimetry showed improvement in the field of vision. The patient is being followed up regularly, and continuous positive airway pressure (CPAP) usage is being continued.
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