my leopard gecko wont eat

Question
I have 2 leopard geckos, one is male and one is female. I've had them for about 2 years. They were doing fine, except whenever they tired to lay eggs the eggs died. Right now my male is huge and the female is small and looks like she hasn't eaten in a while. Her eyes look like something is in the way so she cant see. She is slow and i tired putting a cricket right in front of her mouth to eat, but she didn't do anything. I really need some help. I was planning on selling them but i need to help the girl first. She has almost a color of orange stuff in her eye, but that might be from my orange sand. I couldn't get a picture because it looks normal in the picture. What should i do?

Answer
 Get her to a good reptile veterinarian.  You need to get a fecal and blood panel to see what issues she has.  It may be a metabolism, or a dietary difficiency, or a medical issue.  At the same time the vet can see if this is what is affecting her vision or if there is a foriegn body irritating the eye.