SLT is equivalent to ALT in terms of IOP lowering at one year. Both are safe and effective procedures for patients with open-angle glaucoma.
SOURCE: Damji KF, Bovell AM, Hodge WG, et al. Selective laser trabeculoplasty versus argon laser trabeculoplasty: results from a one-year randomized clinical trial. Br J Ophthalmol 2006;90(12):1490-4.