The antibiotic eye ointment mentioned previously is called Terramycin. Use a 1/8" strip of it in each affeced eye 2-4 times per day as needed. It goes for about $10 for a 1/8 oz. tube in
www.drsfostersmith.com, plus shipping of course, but you can get it from the vet, too. Maybe a farm supply store, since it can be used on horses, too.
You can get nutrient supplement gels, like Nutri-Cal, at pet supply stores, which are helpful in boosting malnourished babies. You may talk to a vet about a safe dewormer for kittens at their age. Worms and fleas can kill kittens, no matter how well you feed them. They die of blood loss. Just be sure to read all labels, and when in doubt, ask a vet if it's safe for their age. People kill kittens everyday simply trying to rid them of fleas!
In the past, when I've found myself in these types of rescue situations, it's always at the WORST possible time in MY life. (My husband will testify to this!) However, I've also found that it can put my life into perspective.
A few winters back, we fostered and rehomed 6 kittens and cats that my bum neighbors abandoned, all while my husband was in the midst of a lengthy unemployment. I was in contact with a lot of people, networking to heal, vaccinate, neuter and rehome all of these kitties, and found so many angels out there dedicating their lives to doing the same for scores more cats. These same folks lives were much less fortunate than mine. One woman was in the midst of her third battle with cancer, with no insurance, and was unable to continue working with her husband at their small business due to her condition. As tight and stressful as our lives were at that time, it gave me something purely positive to focus on. These kitties lives were turned around 180 degrees because I chose to do it. Otherwise they'd have been dead. Meeting all of these other people put my life into perspective. As angry as I was at my bum neighbors, I thought about the drug abuse, domestic abuse and general chaos that destroyed their family and lost them their home...the cats were actually the lucky ones. Their two daughters may not be so fortunate. Them losing their home was merely a symptom of their disease. During my husbands unemployment, I realised I could lose every physical thing, and still survive, as long as I have my family. Saving lives gives purpose to your life. The rest is just stuff.
Good luck with your kitties. Look around for kitty rescue organizations in your area. Sometimes the hardest thing for them is foster homes. Often, they have the networks to get them to vets, and find them homes, as long as you can hold on to them in the mean time. Two local groups were a God send to our kittens!