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When you are outside in bright sunlight, your pupils will constrict, so that only a small part of the lens actually needs to darken. Is there a reason the enti
by joeriel 8y ago
When you are outside in bright sunlight, your pupils will constrict, so that only a small part of the lens actually needs to darken.
Is there a reason the entire lens has to darken? If they only deposited the dye in a smaller center portion, it would be unnoticeable against a black pupil.