Eyekepper Quality Half-Rim Computer Reading Glasses

The frame material of these glasses is metal. The lens width is approximately 2 1/16 inches (53mm), the frame width is approximately 5 7/16 inches (138mm), the lens height is around 1 1/4 inches (31mm), and the frame height is about 1 5/16 inches (33mm). The bridge (DBL) measures roughly 11/16 inches (17mm), and the temple length is approximately 5 1/2 inches (140mm), featuring spring hinges.

The Eyekepper BB40 lenses are transparent with a coating that provides 100% UV protection. These lenses do not block the blue color spectrum, which is useful for color filtering properties. If you require lenses that block blue color and more blue light, please consider the Eyekepper BB60, BB90, or BB98 models.

The blue light blocking performance of these lenses has been tested using a spectrometer. Within the 500nm wavelength range, they block 29% of blue light; within 490nm, they block 32%; within 480nm, they block 33%; within 470nm, they block 35%; within 460nm, they block 36%; within 450nm, they block 37%; within 440nm, they block 39%; within 430nm, they block 51%; within 420nm, they block 93%; and within the 400nm-410nm range, they block more than 99%. This exceptional blue light blocking comes with almost no color distortion.

Eyekepper is a brand that offers professional, affordable blue light blocking glasses to help reduce eye strain when using digital screens. Per the Occupational Safety & Health Administration, the preferred viewing distance for VDTs (Visual Display Terminals) ranges between 18 and 24 inches (45.72 and 60.96 centimeters, respectively). These Eyekepper glasses filter out 100% of the most damaging low-level blue light and nearly 90% of high-energy visible light from tablets, phones, TVs, computers, and more.

The Eyekepper BB40 lenses are designed using American HEV-Adsorb substrate absorption technology, providing more professional-grade blue light blocking. Additionally, the anti-blue-ray lenses utilize special U.S. substrate processing technology to protect the eyes from ultraviolet radiation and block UV420, not just UV400.

The data for Eyekepper's BB40 lenses shows 40% blue light blocking for the wavelength range of 395nm-500nm, with the test wavelength being 450nm. The data provided covers the visible light, blue light remaining, and UV light remaining.

Eyekepper glasses are designed to filter out a portion of harmful blue light, resulting in almost no color difference. The premium features of these lenses, including a 12-layer coating, make screen time more comfortable and help eliminate symptoms of digital eye strain. The lenses are also tinted, making them great for outdoor reading.

Whether you're looking for reading glasses for the office or home, Eyekepper's offering provides the premium protection you need to enjoy your screen time with reduced eye strain.

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