Reference to original study:

1. Bengtsson B, Heijl A, Aspberg J, Jóhannesson G, Andersson-Geimer S, Lindén C. The Glaucoma Intensive Treatment Study (GITS): A Randomized Controlled Trial Comparing Intensive and Standard Treatment on 5 Years Visual Field Development. Am J Ophthalmol. 2024 Oct;266:274-288. https://doi.org/10.1016/j.ajo.2024.06.017.