A team at the National Healthcare Group Eye Institute in Singapore have developed an augmented reality mobile phone application, EyeCU, to simulate glaucoma progression and enhance understanding about the disease and its course. It is a bilingual (English/Spanish) application that is free-to-download on the Android and Apple app store. As eye care physicians in the South Bronx, the investigators are hopeful that the findings in this study can be extrapolated to our patients in the South Bronx, where poor health literacy, non-adherence to glaucoma medication and poor follow-up remains a large barrier. The investigators hope that by offering the simulation in both English and Spanish, the investigators will not only be able to improve our patients' understanding of glaucoma, but also improve glaucoma treatment adherence and assess our patient population's responsiveness to augmented reality as an educational platform.

Experimental design: Pilot cohort study

Data collection: Patient characteristics such as age, sex, ethnicity, preferred language, zip code, employment status, highest educational attainment, current topical eye medications, Past Ocular History, Past Medical History

Recruitment for participation in the study will be performed during glaucoma clinic registration Consent will be conducted by a member of the research team who is not directly involved in the participant's clinical care Pre-intervention glaucoma knowledge questionnaire (NEHEP glaucoma knowledge questionnaire) will be given to participants, to be completed on dedicated clinic tablet device.

Post-intervention glaucoma knowledge questionnaire (NEHEP glaucoma knowledge questionnaire) will be given to participants, to be completed on dedicated clinic tablet device.

Rate of missed glaucoma follow-up appointments before and 6 months after application use will be collected from the electronic medical record.

Rate of medication adherence before and 6 months after application use will be collected from the electronic medical record.

Inclusion Criteria:

- Patients with a clinical diagnosis of glaucoma on medical therapy for at least 4 months

Exclusion Criteria:

• Patients with optic neuropathies unrelated to glaucoma
• Patients with VA 20/100 or worse in both eyes
• Visual defects involving fixation in both eyes
• Patients with symptoms impairing ability to operate a smartphone during visit including diplopia, motor difficulties, cognitive impairment, illiteracy
• Patients who are unable to read or understand English or Spanish