Effects of primary glaucoma on sleep quality and daytime sleepiness of patients residing at an equatorial latitude.

Aim: To investigate the impact of primary glaucoma on sleep quality and daytime sleepiness of patients.

Methods: Prospective cross-sectional study with consecutive sampling in South-East Asian population was performed. Validated questionnaires: the Pittsburg Sleep Quality Index (PSQI) and Epworth Sleepiness Scale (ESS) were administered prospectively.