Hi, I'm new to this, and I have two guinea pigs Lola and Coco. They are both 4 1/2 and never had any health problems. just noticed one of my guinea pigs eye has crust all over it, and looks really cloudy, like theirs a film over it and is sunken. When I put up to the light to take a closer look her bad eye reflected blue and Lola's other eye is perfectly fine. Yesterday, her eye was just fine and in the morning nothing seemed to be wrong. It was near the evening when I noticed her eye was milky but I thought it she was just cleaning her face. Currently, she seems to be acting normally, and they plenty of hay and water. I'm just worried she might get or have an infection that can lead to eye loss. I'm not sure how this happened I'm assuming she poked her eye really badly on her hay or it could be some sort of infection.