Twitiching Eyes Siamese Cat. Cats with progressive retinal atrophy typically develop night blindness first. During an attack, your cat will behave as if he is reacting to hallucinatory stimuli.
Nystagmus can occur in both dogs and cats and is a characteristic sign. Siamese cats have astounding blue eyes, and the albino genes are responsible for this phenomenon. They've twitched as far back as i can remember so i assume she's had it since birth.