Sorry about your pullet. The pictures are a bit blurry to see if her eye is just shut or if there is something one them. Chickens do have a third eyelid, also called the nictitating membrane which we seldom see, but it is for protection from dust and dirt when they are scratching around or dust bathing. Do you think her beak was cracked or injured? I would try mixing a cup of chick feed mixed with a lot of water and some egg, to see if she is interested. Bits of scrambled egg are usually popular. Baby food or canned cat food sometimes is good to get them interested in eating. You could also learn to tube feed her. Chickens can make some amazing recoveries, but we never know. It sometimes takes some time and supportive care to see how well they will recover. Plus, I would not put KY jelly into an eye. Saline, lubricant eye drops, or plain neosporin ointment would be okay.