PRiSMA KAHLA blue light filter glasses, blueblocker anti light, bluelightprotect PRO KL709

Lenses: PRO99. Max. Blue light protection from 99.9 % to 500 nm and 80 % in the blue-green spectrum up to 550 nm thanks to amber-coloured, fully anti-reflective BluelightProtect filter PRO99 with a light transmission of over 60% - scientifically developed in Germany. Use: ideal for long screen work, pre-strained eyes and especially in the evening and night hours, when the body and hormone system are highly sensitive to blue light. Use: protect retina and blue light receptors as best as possible to prevent lack of sleep and sleep disorders, maximum protection against blue light for pre-loaded and damaged eyes, minimise negative effects of night screen time. Setting: Airy, cool half-frame metal frame in slim style for a confident appearance with strong contour. Design: elegant appearance underlined by curved, flexible metal glasses temples for individual adjustability. Durable metal hinges for low-wear opening and closing as well as adjustable, breathable comfort nose pads for long, comfortable wear.