Ponies can't really notice her severe eye problems like they notice Ditzy Doo's lazy eye because she had hidden her amethyst eyes under enchanted glasses since she was three. Her adoptive mom knows at the very least her eyesight is much worse than it should be for a filly her age even with her glasses and it messes up everything else but keeps quiet about it. No pony, not even her Scootaloo, her BTSFF, knows the reality of her eye problems, how it truly effects her and the fear it brings her.