 
In NO strength, as well as reading strengths. Glare reduction. Protection from UVa, UVb, & HEV. Melanin's natural amber tint enhances the screen. The strength on the top portion of the lens is for viewing the computer, and the strength on the bottom is for close-up material. Anti-glare lens coating. Other computer glasses that we carry from various manufacturers. All are anti reflective & UV filtering. Read each product to find out their unique properties. Strictly for those who do not wear glasses. They have special amber anti glare lenses with a tiny magnification "boost" to reduce fatigue, & increases visual acuity.
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