Perimetric Testing With Virtual Reality

Inclusion / Exclusion Criteria: 1. Age range: 25-70 years 2. For normal subjects: 1. Patient is free of any current or prior ophthalmic pathologies that would potentially cause visual field defects: e.g. retina pathology, glaucoma, cataracts, keratoconus 2. No ocular surgery other than cataract surgery within 6 months prior to the study visit 3. For glaucoma subjects: 1. Patient has a diagnosis of primary open-angle glaucoma 2. Patient is free of any other current or prior ophthalmic pathologies that would potentially cause visual field defects. 3. No other ocular surgery other than glaucoma or cataract surgery within 6 months prior to the study visit 4. No IOP lower than 10 mm/Hg or higher than 30 mm/Hg 4. Refractive Error: 1. Sphere = up to -6.00 D to and up +3.00 2. Cylinder = up to -3.00 is common 5. No past refractive eye surgery 6. No Multifocal or phakic (ICLs) IOL; no multifocal CLs 7. One eligible eye 8. Ability to sit for standard VF bowl exam. Ability to wear VR perimetry headset device.