What can I do about my dog's eyes?

What kind of dog? This is common. Eye allergies affect 3 out of 5 dogs and seem to be more prevelant in purebreds. One Benadryl a day in food if dog is up to 40 pounds. Two if larger dog. Use a simple saline solution eye wash, way cheaper than anything that is sold by pet stores, vets offices, and it is the basic same thing. They just charge more. Read the boxes. Choose the one that fits what you just described, without the long hair around the eyes. Vets are awfully expensive for common things that we can use OTC things for that we can also use ourselves, so it isn't a waste.