Injured frog

[Whistly]

Hi welcome to the forum.
To be honest I wouldn't be bothered one bit about the missing eye as when I lived in England we had a big pond and quite a few rose bushes and one day I saw a frog with a mutilated eye socket and no eye (probably lost it in the rose bushes), and yet it was a fat happy common frog which I saw for quite a few months before moving back to NZ. So I wouldn't be surprised if it mangaes fine with one eye it's just the wound I would be worried about. If you decide to keep it then when you put food in I would just put the food on the side that has an eye.
Hope this helps
Luke