hi i am wondering if anyone knows if conjunctivitis in a two week old pup can cause blindness a breeder has got a litter of pups and one has conjunctivitis in one eye and she said the vet recons it could lose its sight im not sure if there is a more serious geneic disorder of the eye and shes making out its only conjunctivitis i just did not think conjunctivitis could cause blindness

im not really sure but my dog had conjunctivitus as a new born pup,and is now three years old wich is also in good bill of health and eyesite is really good.not had any problems since.but thats just my personal opion of my own dogg.donna

Although Conjunctivitis is a fairly common infection that usually does not lead to anything serious, if left untreated it can progress into a potentially life-threatening illness. Dogs that already suffer from a weakened immune system, either as a result of injury or other illness, are much more prone to developing a protracted, more harmful case of Conjunctivitis. One of the dangerous symptoms of a case of dog pinkeye that has progressed for too long is a perforated cornea. The infection can spread from the membranes surrounding the eyeball to the eyeball itself, where it can corrode the tissue and lead to small holes or perforations. This process of perforation can lead to your dog having difficulty with its vision, and in some extreme cases has been known to cause blindness

Excerpt taken from here

http://pethealth.petwellbeing.com/wiki/Dog_Pink_Eye