just would like to ask for advice. my 7 yr old american cocker spaniel just found got cataract and now can't see with her left eye... right eye is starting to get cloudy too... vet said can wait till the right also turns bad before going for surgery... but i wonder if it's better to operate it now as she is still not too old?? also left eye just got bad from normal in only about 1 month... which is too fast... i worry if she has any other disease that would speed up her deterioration... checked urine glucose normal. is tired all the time... 20 hours sleep everyday... pls advise... many thanks!!!