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ABO NOCE Basic Opticianry

Category - Ophthalmic Optics

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Which lens has the least UV absorption?

CR-39
Polycarb
Crown glass
Mid index lenses

Explanation

Answer: C - Crown glass has the least UV absorption. Crown glass only absorbs 39% of UV in comparison to CR-39 at 90%, Polycarb at 100% and mid index lenses at 95-98%.

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