Doing some Vision rx20 preventative eye care is still the best way to maintain the dog's health. One way would be to gently and carefully wipe the dog's eye with a clean, damp cloth at least once a day to remove any build-up of material or gunk around the eyes, without scratching or rubbing the actual eye. Another way would be to keep the hair around the eyes short to prevent it from scratching or irritating the eyes.