Casper is back in his foster home and doing much better. Thank you for all your support!
From his foster caregiver:
Casper is home from the kitty hospital. He can sort of see now as his eyelid swelling is resolving, and got his first toys!
He's still sneezing but can see out of both eyes now. He spent yesterday running around the bathroom, playing with his ball, mouse, and stuffed chicken, and generally hopping and popping. Eating well, taking his medicine like a champ. Has started drinking water and eating Baby Cat kibble. Loves cuddles and purrs up a storm.