Possible Clues:

• Transparent part of the eye
• Eyeball covering
• Lens covering
• It's not all my eye, just sounding a bit more corny
• Wow! Not entirely trim, but bit of a looker
• Front covering of eye
• Sounds more than grainy, but it's not all my eye
• Clear front layer of eye
• In your eye it starts on your foot
• It sounds more corny, but it's not all my eye