Obstructive sleep apnea hypopnea syndrome (OSAHS) is a disease in which apnea and hypopnea occur during sleep, and the main symptoms are sleep snoring. OSAHS is not only closely related to the occurrence of various eye diseases, but also the severity of OSAHS can affect the progression of related eye diseases. At present, continuous positive airway pressure (CPAP) is an effective means to treat OSAHS, and the progression of related eye diseases has been improved correspondingly after CPAP treatment. In the future, it is necessary to further study the pathogenesis of OSAHS and enrich the research evidence of the association between OSAHS and eye diseases, so as to provide more comprehensive theoretical evidence for the prevention and treatment of OSAHS-related eye diseases.