My mom got here glaucoma done a few weeks back. The doctor has prescribed 3 eye drops. Raymoist, dorzox t and alphagan z. The doctor has asked her to put it 3 times a day. Though she is putting it regularly, there is redness in both eyes. It looks as if the eyes are dried and all the red veins come out. She does not have any pain neither irritation, but the redness is not going. Please suggest.