i agree, might be a stuck eyecap.
when the snake sheds next time, inspect the shed to see if the eyecaps came off and are visible in the shed. If the old skin has holes where the eyecaps should be, then its clear and you need to have a vet remove the stuck eyecaps. Some people do it themselves by first soaking the snake and then carefully and gently rubbing over the problematic eye with latex gloves or silicone gloves or a cotton swab. But its risky, someone experienced should do it.
but from the pictures it looks like one of the eyes retained a cap.
EDIT: i think i also noticed stuck shed covering the front of the nose, that piece of stuck shed may be connected to the retained eyecap. over the nose you can see the edge of the stuck shed as something like a white line.
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