You can try an herbal remedy like goldenseal that has antibiotic properties. Some sort of treatment is neccessary as it sounds like your cat has an eye infection. These infections (especially in kittens) left untreated usually cause blindness in the affected eye.
But some sort of antibiotic is definitely in order.
There is NO home treatment for damaged and infected eyes that we can offer you over the internet. The kitten needs care by a vet, that's the only advice that I can offer. You must really find a way to get the cat to a vet-look at the very first 2 threads there's advice on what you can do to get the care that this baby deserves.