“What is the most effective treatment for glaucoma?”

depends on eye pressure, how advanced the glaucoma is, general health etc etc....

There are many different types of glaucoma so there is not one "catch-all" answer. Certainly, eye drops or surgery do treat glaucoma, but it really depends upon your age, your health, medications, your eye health, and what type of glaucoma you do have to accurately answer your question. Please check with your eye doctor to see what type of glaucoma you have and then they can advise you as to what your options are. Good luck and best wishes.