Purpose of review
To describe the current state of knowledge regarding glaucoma patients’ eye drop technique
, interventions attempting to improve eye drop technique
, and methods for assessing eye drop technique
In observational studies, between 18.2 and 80% of patients contaminate their eye drop bottle by touching their eye or face, 11.3–60.6% do not instill exactly one drop, and 6.8–37.3% miss the eye with the drop. Factors significantly associated with poorer technique
include older age, lack of instruction on eye drop technique
, female sex, arthritis, more severe visual field defect, lack of positive reinforcement to take eye drops, lower educational level, low self-efficacy, and being seen at a clinic rather than a private practice. Among intervention studies, four of five studies using a mechanical device and three of four studies using educational interventions to improve technique
showed positive results, but none of the studies were randomized controlled trials.
Poor eye drop technique
is a significant impediment to achieving good control of intraocular pressure in glaucoma. Both mechanical device interventions and educational interventions offer promise to improve patients’ technique
, but studies with stronger designs need to be done followed by introduction into clinical practice.