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High index 1.61 photochromic pgx hmc aspheric optical lens
Protection from UVA(400nm) band of UV rays cause of conjunctivitis, a cataract.
100% blockage of harmful UV rays.
Optical devices that has the property to darken itself in thepresence of ultraviolet rays.
lt provides solar protection in exteriors, returing to have a lowerlevel of absorption in interiors.
Can be used equally well throughout the year, in all climatesand for many different activities.
