The purpose of the study is to repeatability, reproducibility and agreement of eye measurements in retina and glaucoma patients.

The purpose of the study is to repeatability, reproducibility and agreement of eye measurements in retina and glaucoma patients using OCT technology. There will be a series of measurements acquired from one eye on at least 2 different OCT devices. All testing will be completed in one visit.

Inclusion Criteria:

Inclusion Criterea:

• At least 18 years of age
• Able and willing to provide consent
• Willing to complete the required examinations and visits
• Best corrected visual acuity equal or better than 20/100
• Retina subject must have clinical diagnosis of retinal pathology
• Glaucoma subjects must have clinical diagnosis of glaucoma

Exclusion Criteria:

• Unable to complete the required examinations and visits
• Poor OCT image quality as a result of media opacity, extreme refractive error or pathologies in the anterior segment
• Confounding pathology requiring surgical treatment or medical intervention

Patients will have retina pathology or glaucoma.