Dr. Amy Hennessy of The Johns Hopkins Bloomberg School of Public Health, in Baltimore stated "Getting eyedrops into the eye is not the same as asking a patient to swallow a pill, or use a skin cream. It's easier said than done."

Consider 64% of glaucoma patients state they follow physcian's instructions "Extremely closely" yet:

75% admit to some form of non-compliant behavior,
31% don't fill prescriptions given,
and nearly 50% discontinue drops within 6 months.

Glaucoma eye drop compliance, persistence and adherence is serious. Non-compliance can have serious consequences on one's vision.