To determine the association between medical, demographic, socioeconomic, and therapeutic differences on compliance with topical glaucoma therapy using the Travalert device.

To determine the association between medical, demographic, socioeconomic, and therapeutic differences on compliance with topical glaucoma therapy using the Travalert device. All participants will have open angle glaucoma.

To be eligible to participate in the study, patients had to be (1) 19 years or older; (2) have a diagnosis of open angle glaucoma (OAG) in 1 or both eyes or ocular hypertension; and (3) using a prostaglandin ocular hypotensive medication in 1 or both eyes.

The protocol excluded patients with uncontrolled IOP control, known contraindications to Travoprost, clinically significant systemic disease that would interfere with the study, participation in any other research study within 30 days, or change in systemic medications that may alter IOP within 30 days before recruitment.

Glaucoma patients.