Optical Coherence Tomography (OCT) Data Collection Study

Inclusion Criteria: * At least 18 years of age * Able and willing to provide consent * Able and willing to complete the required examininations and visit * Refractive error within 8 diopters sphere and within 2 diopters cylinder in each eye * Best corrected visual acuity of 20/30 or better in each eye Exclusion Criteria: * History of leukemia, AIDS, dementia or multiple sclerosis * Concomitant use of hydroxycloroquine or chloroquine * Family history of glaucoma among first degree relatives * Intraocular pressure of 22mm Hg or greater in either eye * Unreliable or abnormal visual field * Active ocular disease * Previously diagnosed with glaucoma or glaucoma suspect * Congenital ocular abnormalities * Previous intra-ocular surgery or laser treatment (other than refractive surgery or uncomplicated cataract surgery greater than 6 months previously) * Anatomic narrow angle