Possible Clues:

• A hair in fringe above optic
• Short facial hair
• Inspect, then whip it from the lid?
• Healey's unusual facial hair
• Cilium (anatomy)
• '... false -es, as thick as those caterpillars that give you a rash if you handle them' (Alan Clark, Diaries)
• Look at whip on face
• Something to bat
• Optic hair
• Very slim margin