PURPOSE: To evaluate intraocular pressure variation due to postural changing of supine to sitting position and, to correlate this variation with visual field defects in primary open angle and normal tension glaucoma patients, as well as normal eyes. METHODS: Thirty-two eyes of 32 POAG patients, 30 eyes of 30 NTG patients and 20 eyes of 20 normal patients were evaluated in the study. Intraocular pressure was measured at 6 o’clock in supine position and 5 minutes after in sitting position […]