- Eyekeeper's BB40 lenses - transparent lenses with filter.UV420 protection.
- The lenses do not block blue color of online test for color filtering properties.Please check Eyekeeper's BB60,BB90 and BB98 lenses if you need block blue color and block more blue light.
- Test via the spectrometer(the performance of blue light blocking): block 29% within 500nm, block 32% within 490nm, block 33% within 480nm, block 35% within 470nm, block 36% within 460nm, block 37% within 450nm, block 39% within 440nm, block 51% within 430nm, block 93% within 420nm, block more than 99% within 400nm-410nm.
- Almost no color distortion.
- Plastic frame with spring hinges,Lens width about 1 7/8 inches (47mm), Frame width about 5 5/16 inches (135mm), Lens height about 1 1/2 inches (38mm), Frame height about 1 11/16 inches (43mm), Bridge (DBL) about 9/16 inches (15mm), Temple length about 5 5/16 inches (135mm).
*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 40% high energy visible light from tablets, phones, TV, computers and more.
*Our lenses code is BB40 for the Eyekeeper violet block glasses.
Please double check the color or magnification strength you choose when check out. If you forget to choose, the defalut option will be added to the cart which is not what you want.
Shipping and Tracking
Delivery Time=Processing Time +Shipping Time
1.The processing time
It depends on the order accuracy and complexity and usually takes 1-3 business days.
2.The shipping time
It based on your address, usually 5-10 working days deliver to US and UK, 2-4 weeks to other county.
Return and Refund
1. If you are not satisfied with your glasses, you can return them for a full refund to the original payment method. Please pay the return shipping fee.
2. If we send you wrong or defective items, after verfication we provide full refund to the original payment method or resend at no additional charge.