Diurnal and Nocturnal Effect of Travatan With SofZia Preservative on Intraocular Pressure and Ocular Perfusion Pressure

Inclusion Criteria: * Diagnosis of open-angle glaucoma or ocular hypertension, including pigment dispersion glaucoma and pseudoexfoliation glaucoma * Age ≥ 18 or ≤ 90 years, of either gender, or any race/ethnicity Exclusion Criteria: * Females who are currently pregnant or planning to become pregnant, as determined by history during the study period * Diagnosis of any other form of glaucoma other than open-angle * Schaffer angle grade \< 2 in either eye by gonioscopy * Chronic, recurrent, or severe inflammatory eye disease * Intraocular surgery within 6 months or laser within 3 months * History of active, recurrent, or chronic ocular infection with the Herpes Simplex Virus * History of cystoid macular edema * Inability to safely discontinue all ocular medications for 4 weeks * Patients who smoke or have irregular daily sleep patterns * Patients who have started or changed glucocorticoids therapy in the last 3 months * Patients who are currently undergoing medical marijuana therapy * Any use of a non-FDA approved medication for glaucoma in the last 3 months