I have a 4 year old German/Australian Shepherd mix and she is having the exact same problem. I noticed the spot on her right eye about week ago, and tonight I noticed that it is now in her left eye. I am wanting to take her to the vet tomorrow, dh wants to wait a few days since the right eye seems to have improved.
Did you ever find anything out???
thanks,
Les
(mom to Kyra... my 4 yr old big baby

)