An eyewear lens provides for selective spectral performance in response to varying
light conditions, including both changes in intensity and spectral distribution.
The lens responds selectively to both ultraviolet and visible light, and exhibits
different spectral transmittance characteristics under different lighting conditions,
to provide for better vision for a wearer. In addition to this active response,
the lens also may include a polarizer to further control light and to minimize
the glare that interferes with clear vision.
