Related Clues:

• One of your contacts
• Fisheye, for one
• Dresser-drawer handle
• Of the eyes
• Loupe part
• Loupe, essentially
• Door or drawer doodad
• Means of adjustment
• Radio feature, sometimes
• Zoom or contact
• Tuning device
• __ nerve
• Opening piece
• Hubble part
• Pince-nez component