today's extra strength soaps are powerful enough to slowly disintegrate lens coatings

or Tablet PC

Size for manual measurement

Bridge (DBL) about 11/16 inches (17mm)

never clean your reading glasses with paper towels or clothing or alcohol

Cat-eye Blue Light Blocking Eyeglasses LX19038-BB90 Magnification Strength:without magnification today's extra strength soaps areAcrylic lens, metal frame with spring hinges Block 90% blue light, 30% color distortion Frame width about 5 5 16 inches (135mm) Lens width about 2 1 8 inches (54mm) Lens height about 1 9 16 inches (40mm) Bridge(DBL) about 1 2 inches (13mm) Temple length about 5 1 8 inches (130mm)