Blue Light Blocking Reading Glasses with Amber Filter Lens - Square Large Lens Computer Readers
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- Eyekeeper BB90 lenses - amber tinted lenses with 12 layer coating.100% UV protection.
- Test via the spectrometer(the performance of blue light blocking):block 62% within 500nm,block 71% within 490nm,block 78% within 480nm,block 81% within 470nm,block 83% within 460nm,block 86% within 450nm,block 88% within 440nm,block 89% within 430nm,block 92% within 420nm,block more than 99% within 400nm-410nm.
- 30% color distortion due to 50% blue color was filtered out.
- The lenses block 50% blue color of online test for color filtering properties.Please check Eyekeeper BB98 lenses if you need block more blue color and blue light.
- Plastic?frame with spring hinges,Lens width: 1 15/16"(50mm), Frame width: 5 7/16"(138mm), Lens height: 1 5/8"(41mm), Frame height: 1 7/8 "(47mm), Bridge (DBL): 1/2"(13mm), Temple length: 5 1/2"(140mm), Spring hinge: Yes, Lenses: Aspheric, Head size: Medium To Wider.-able frame.
*Per the Occupational Safety & Health Administration: The preferred viewing distance for VDTs ranges between 18 and 24 inches (45.72 and 60.96 centimeters, respectively)
*Filters 100% of the most damaging low-level blue and nearly 90% high energy visible light from tablets, phones, TV, computers and more.
*Our lenses code is BB90 for the Eyekeeper blue light block glasses.