More: Tinker is a special girl. Born with congenital hydrocephalus, she lost her vision at 4 months old, but that doesn't hold Tinker back from living her best life! She is a warrior princess who loves long walks on the beach and will jump four feet in the air when she's excited! Tinker's condition permanently keeps her at the age of a spunky puppy, who's curious about everything life has to offer and is affectionate toward everyone she meets.