This study is a randomized, double blinded, clinical trial. Eligibility criteria are: primary open angle glaucoma, pigmentary glaucoma and pseudoexfoliation glaucoma.
Exclusion criteria are: secondary glaucoma, previous glaucoma surgery (not including cataract surgery as a glaucoma surgery), uncooperative patients, corneal endothelial diseases (such as Fuchs dystrophy or cornea guttata) and severely decompensated glaucoma.
Both eyes of the patient are treated: each eye is allocated in a group using the closed envelopes method. Both the patient and the surgeon who performs the post laser examinations are not aware of the group allocation.
The exams required before the trabeculoplasty are: best corrected visual acuity, IOP measurement, specular microscopy with corneal central thickness.
The IOP is measured an hour after MLT (micropulsed laser trabeculoplasty), then on day one, at one month, at three months and six months. Best corrected visual acuity and specular microscopy are repeated at three months.
Expected outcomes: to compare the IOP lowering effects between group one and two and to assess the safety of the procedure on the corneal endothelium.
Secondary outcomes: decrease the number of glaucoma medications applied by the patients.
