Tips on Caring for a blind pet
Make a sound with your fingers as you reach out to touch them.
More than a few times, I have come across a blind animal that is startled when you reach down to touch/pet them. The animal knows you're standing there in front of them, but they don't always know that you're reaching down to touch them. Immediately before touching them, I suggest making a sound. I use a simple rubbing together of my fingers, but anything, even a snap of the fingers, works. Rubbing your thumb against your fingertips, as in the motion of indicating "something cost a lot of money" (if you can visualize it!) produces enough of a sound to let your pet know your hand is close. It only takes a split second of rubbing, and the animal picks it right up. As well, a nice little unintentional benefit is that after a few times, the animal gets conditioned to this (rubbing sound = petting), and they expect to be touched. My cat immediately hunches up his back in preparation for a petting when he hears the sound.