Here's a video from Lumenis SLT that addresses reasons for patient non-compliance with a glaucoma eye drop regimen. A recent survey among glaucoma patients shows the following reasons, among others, for non-compliance: denial of the problem, cost of the eye drop treatment, difficulty of the regimen, unpleasant outcomes or side-effects of the treatment, lack of trust that the treatment will relieve symptoms, apathy, and previous experience (the condition returned after previous treatment). All reasons for patients to seriously consider SLT to treat glaucoma.