I had a puppy with one eye that never opened, then did about a quarter of the way. Same thing, cloudy eye. There was some type of infection. Vet prescribed antibiotic and steroid ointment, wanted a very slow recovery, because the fluid in the layers of the eye was actually protective. Eventually, the eye cleared right up and I took the puppy to an eye clinic before placing him. Lived a full life with good vision and no further problems. Here's hoping the OP will report back to us on her little one.