My first impulse is to say 'yes' because other topical ointments, etc. can be used on humans and animals but....I would FIRST strongly urge you to call a Veterinarian before doing so. Some ingredients are 'ok' while others are not and not all eye drop or ointment formulae are the same....Please call a veterinarian or search it online...better to be safe than sorry.
Also, your kittie's eye problems might be symptomatic of another issue or illness. It's best to have a Veterinarian check your kitty....there are several viral infections as well as systemic maladies circulating at present....again; better to be certain in order not to risk your cat's overall health.