This study is looking at two ways to treat primary open-angle glaucoma (POAG), a common eye disease that can lead to blindness. The study compares two treatments: one combines a surgery called phacoemulsification with intraocular lens implantation (PEI) and goniotomy (GT), while the other combines PEI with medication (MED). The main goal is to see if the PEI+GT treatment works as well as PEI+MED in lowering eye pressure in people with POAG and cataracts, and if it can save money and improve quality of life by reducing medication use. Goniotomy is a type of minimally invasive glaucoma surgery (MIGS) that helps drain fluid from the eye, making it less risky and faster to recover from than other surgeries.

Key Points:

• The study lasts one year and involves follow-up visits.
• Participants will be randomly assigned to one of the two treatment groups.
• Participants must be aged 40-85, have controlled POAG, and a cataract, among other criteria.