Read Optics Mens Reading Glasses 1.0, Rectangular Half Frame Spectacles, Blue Blocker Lenses with Spring Hinges for Comfort and Fit

COMPUTER GLASSES FOR MEN TO HELP REDUCE HEADACHES & EYESTRAIN. These blue light blocking glasses help to filter harmful blue rays from screens & digital devices.
CLASSIC MENS DESIGN. The semi-rimless design is great if you want a pair of reading glasses but not full rimmed. The front of the frame and arms are in black metal. The arms have a subtle pattern.
CHOOSE FROM ZERO MAGNIFICATION OR A LENS POWER. If you do not need reading glasses but want protection then the no power glasses are perfect. Alternatively if you want the combination of a reading glass and blue blocking glasses - just select your lens power. Available in lens power + 0, 1.5, 2.0, 2.5, 3.0 & 3.5. Blue light & UV blocking optical quality clear lenses. Scratch, smudge resistant & easy to clean.
LIGHTWEIGHT AND STRONG HALF FRAME GLASSES. These rectangular glasses combine the look of a rimless frame, but have the strength and durability of full frame specs.
MEASUREMENTS. Lens width 53mm, bridge width 18mm, arm length 138mm. Weight 23.1g. Conform to BS EN 14139:2010 & EN 14139:2010