My Brother In-law Has Been Diagnose With Glaucoma. He Was

My brother in-law has been diagnose with glaucoma. He was placed in a nursing home in Monaghan Tx. Just wondering what can be done. He states they are putting drops in his eyes. Has not helped a lot can see light and dark. Just wondering if it will get better. So he can go home or whether he will have to have someone to take care of him. What is the treatment. He states they put drops in eyes. Is there a medication pill wise or is it just drops to be used. I really don't know.