This clinical study aims to compare the use of the hypotensive eye drop Triplenex, a fixed triple combination (currently available only in Brazil, Mexico, and Chile), with the globally recognized combination of the same drugs administered separately. The combination of the eye drops Bimatoprost 0.3%, Timolol Maleate 0.5%, and Brimonidine Tartrate 0.2% in separate vials is traditionally used in patients with difficult intraocular pressure control or advanced glaucoma that requires a low target pressure for proper disease management. The fixed triple combination intends to improve patient adherence while maintaining the efficacy of intraocular pressure control and progression of glaucoma. This study arises in the context of a lack of literature comparing Triplenex to the three original drugs and the absence of data on its influence on adherence, ocular surface, and the quality of life in the daily lives of glaucoma patients.