NoIR 77% Yellow SpectraShield, Large

NoIR Sunglasses offer 100 percent ultraviolet protection and 100 percent blue light protection. Filter color 57 is a yellow filter which allows 77% visible light transition.  This color heightens contrast, features maximum brightness and good visual acuity. The SpectraShield frame has a ledge at the top to keep the sun or light from beaming in and it has the same filter within the small windows on the sides of the frame. The NoIR SpectraShield frame offers complete protection from the sun and artificial lighting. These sunglasses can be worn alone or over prescription glasses. Frame size 38 is a large size frame which measures 144mm x 145mm x 50mm.  Useful for those with Macular Degeneration.

This filter color F57 was originally filter F50 with 87% visible light transmission.