Related Clues:

• The glasses in spectacles
• Glasses in glasses
• The glasses in glasses
• They're transparent in the eye
• Contact ___
• Personal contacts?
• Contacts, e.g
• Elements in telescopes
• Do they lessen distortion of 4?
• Perhaps contacts the French about nuclear antagonists
• Important parts of specs
• Eyewear units
• Bifocals
• Visual aids
• Opticians' products