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Obstructive sleep apnea associated with decreased retinal nerve fiber layer thickness
Patients with sleep apnea may have an increased risk for loss of retinal nerve fiber layer thickness, according to a study. Researchers from Sun Yat-sen University in Zhuhai, China, performed a meta-analysis of six studies involving 1,034 eyes between 2011 and 2014. All the studies evaluated one or more of the following: mean retinal nerve fiber layer (RNFL) thickness; four-quadrant (superior, nasal, inferior and temporal) RNFL thickness; RNFL thickness according to stage of obstructive sleep apnea syndrome (OSAS).