Hi Yvonne
Are the kittens still eating, as young kittens can go down hill quickly if they stop eating. Are they snuffly? Firstly you could try to bathe their eyes with luke warm water with a little salt added, try this 2-3 times daily as this sometimes helps to soothe them. Unfortunately if all the kittens have sore eyes they are very likely to be infected. Do you have any pet charities close by, such as PDSA (peoples dispensery for sick animals), the Cats Protection League or cat rescue. These charities can usually offer help with the cost of veterinary treatment. In the future it would be a good idea to have your cat spayed so that she can't have anymore kittens as she is likely to get pregnant again (the above charities may also be able to help with that and they also know people looking for kittens once they are healthy again).
Good Luck
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