The authors present some guidelines on laser therapy (Argon and/or Yag) application on the different types of glaucomatous pathology. These therapeutic guidelines are the result of a 3-year experience of constant laser therapy application on glaucoma. The case reports include 196 A-laser trabeculoplasties, 34 A-laser iridotomies, 158 Yag-laser iridotomies, 31 gonioplasties, plus numberless combined treatments (iridotomy-trabeculoplasty, gonio-trabeculoplasty, gonioplasty-ciliary body photocoagulation, and so on). The authors conclude by reaffirming the considerable reliability of these techniques, given a prolonged follow-up; they also advance some new therapeutic hypotheses on laser operation in glaucomas.