Related Clues:

• Contractor's concern
• ''Electric'' sensors
• Tech details
• Optometrists' concerns
• They may be black or blue
• Architects' reading
• Some electric sensors
• Swiss-cheese holes
• ''___ of Laura Mars''
• They may be behind glasses
• Mr. Potato Head removables
• Visual pair
• 'Mine -- have seen ...'
• The Guess Who's ''These ___''
• Details, or what you may need to read them