Frequent arousals result in sleep disruption and excessive daytime somnolence. In addition, oxygen desaturation during apnea results in sympathetic hyperactivity, and systemic inflammatory response may contribute to cardiovascular co-morbidities including systemic hypertension, cardiac arrhythmias, myocardial ischemia, pulmonary hypertension, heart failure, and even sudden death.OSAS is associated with several eye disorder, including floppy-eyelid syndrome (FES), primary open angle glaucoma, anterior ischemic optic neuropathy (AION), and papilloedema. Treatment of OSAS can halt progression of the systemic complications and also halt progression of glaucoma, improve FES and reduce papilloedema; conjunctivitis is a common complaint among patients using nocturnal Continuous Positive Airway Pressure (nCPAP).