| http://www.w3.org/ns/prov#value | - Similar to the base lens 100??? and the mid lens 300??? (300???), the top lens 200??? (200???) may also be manufactured in a manner to allow absorption of light in the ultraviolet wavelength portion of the light spectrum, or other portions of the light spectrum for which it may be clinically important to absorb light, such as the blue light portion.
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