Originally Posted by
windycanyon
The recommendation by Aguirre, et al, is to CERF as a baby, again at ~6-12 mos, and annually after that if the lines are at risk for RD. There is another fold that can show up after the puppy check and before 18 mos or so according to the journal article I talked about awhile back (cited below). It was found the hard way by Seeing Eye. The pups CERFd free of folds at or before 10 wks, but some had geographic folds when they returned to the school for formal training at 18 mos or so.
Here is the reference: Holle DM, Stankovics M, Sarna C, and Aguirre GD. "The Geographic form of retinal dysplasia in dogs is not always a congenital abnormality". Veterinary Ophthamology (1999) 2, 61-66.