Combat eye strain and over stimulation from prolonged exposure to electronic devices with these blue light blocking glasses with SpectrumShield Technology. Blue light and extended screen time can disrupt sleep and cause digital eye strain. These glasses, available both with and without magnification, help reduce glare, filter harmful waves, and promote restful sleep. Uptown style – Traditional, rectangular shaped frame done up in classic brown/light brown tortoise effect. Downtown style – Chic, more rounded in grey/black tortoise effect Each style available in either clear lenses or your choice of magnification from +1.50 to +2.50.