The only viable treatment for cataracts in dogs is surgery, according to Vetinfo. As of 2015, the surgery boasts a high success rate, but there is a risk of detached retinas or glaucoma.
A veterinarian may advise against surgery if other conditions, such as diabetes, point to compromised health of the dog, At one time, dogs undergoing cataract surgery were prone to developing farsightedness, exhibiting real difficulty with seeing objects up close. As of 2015, surgeons can replicate the lenses of the eyes, giving dogs comparatively normal sight post-surgery. A board-certified eye doctor can tell if a dog requires surgery or if discoloration or haze in the dog's eyes is due to a normal condition called nuclear sclerosis, says Vetinfo.