All I am giving is a very brief description of what the problem is. Where there are good pages of information regarding the problem, I have included links to them. If you click on a link, you should use your BACK button on your browser to return to this page. If you are considering breeding your pug you should check for ALL of these disorders prior to breeding. Study and an understanding of these problems is imperative for anyone who intends to breed Pugs.
Cataracts are any opaque spot on the lens of the eye, causing at least some loss of vision.
Some cataracts are hereditary and some are not. Surgery may help the dog recover some vision. Ulcers on the eye are most often caused by an intital scratch or injury. They must receive immmediate attention or there will be some loss of sight. Ulcers require a vet's attention to determine the best way to proceed with treatment.