The purpose of this research study is to test participants ability to obtain OCT images of the eyes using an OCT device that is comparable to FDA-approved OCT devices on the market, without the help of an eye technician. Patients with ocular diseases often need to come to frequent appointments with an eye care provider for close monitoring and evaluation. Transportation difficulties, other medical problems, and limited appointments slots can make regular follow-up challenging. In addition, the anxiety of permanent vision loss and subjective nature of monitoring symptoms highlight the need for an alternative solution in which patients can self-generate OCT images of the eye for the eye care provider to review.

Inclusion Criteria:

• 1. Provision of signed and dated informed consent.
• 2. Age ≥ 18 years.
• 3. Presenting for care at a University Hospitals Eye Institute clinic
• 4. Willing to complete study questionnaires.
• 5. Scheduled to undergo standard technician-acquired OCT

Exclusion Criteria:

• 1. Unable to provide informed consent or, in the judgment of study staff, unable to understand study procedures.
• 2. Unable to cooperate with imaging or maintain stable positioning such that an evaluable OCT scan cannot be obtained (e.g., severe tremor or inability to maintain head position).
• 3. Facial skin condition or open wound at the points of device contact that would make use of the headrest unsafe.
• 4. Acute medical or ocular condition requiring immediate evaluation that, in the PI's judgment, precludes participation at that time.
• 5. Any other condition that, in the opinion of the PI/designee, would place the participant at undue risk or compromise data quality (documented).
• 6. Patients with visual acuity <20/200.
• 7. Patients with significant media opacities precluding an OCT scan (posterior subcapsular cataract, vitreous hemorrhage, etc), or severe ptosis.