Sorry it took me so long to reply the post notification got lost in my emails and I forgot to check with school being so busy. I have a picture of her eye as of right now. Keep in mind that when she recently finished her latest shed I allowed her to be put on a substrate (for the first time ever) of clean reptile aspen ( first time it hasn’t been paper towel) shavings because prior to putting it in her whole cage she enjoyed playing/digging in it in a tub. Also after her recent shed her eye cleared up (as it usually does after a shed) and I just noticed that it’s beginning to look bad again. In the picture you can see the missing toes on her foot as well as how bad her skin is (it’s been like that since day one no lies) and I’m doing my best but I can’t seem to figure out what’s up with her eye, toes, skin issue, etc. I love her so much but the constant skin treatments and overwatch I do on her is time consuming with school and sports (and I just want her to get better) as I’ve said before the nearest reptile vet is quite a ways away and I want to do what I can at home before I piss my parents off and ask them to drive me 2 1/2 hours away.
Sorry for the quality it is nighttime and I had to take it on flash (I couldn’t turn on the lights because it would have disturbed my crested gecko who was out eating at the time of the pic)
I've seen that kind of issue with a lizard's eye.
My little rescued water skink Lucky (recued from an attacking cat) lost his right eye , and it looked exactly like your BT's bad eye.
Your skink has either had the eye injured by another animal ,, or when it was captured in the wild , or while being trafficked from Indonesia (many trafficked reptiles die in this process because of the horrible/cruel way they are packed/hidden) , or while at the pet shop ( some kind of infection that started as a minor injury).
He can do OK as a pet with just one good eye because he doesn't need two good eyes to avoid predators.
I think if you took him the local reptile vet (or even an exotics or zoo vet , better than generalist vets) that they will tell you he's lost the eyeball in the bad eye and is permanently blind in that eye.
I don't see any indication of infection , no obvious pus , but if there is any pus or crustiness , antibiotic eye ointment or 50% Activon Medi-honey (Manuka honey) in saline wont hurt until the infection clears up , again , a vet needs to assess this and advise on treatment.
Issues on the toes and fingers , he's an Indonesian BT , he's likely suffering due to low humidity, a humid hide might help him. People over at https://www.bluetongueskinks.org/forum/index.php
can give more advise on this as I've no experience with Indo BT skinks and they will know how set him up properly.