DispensingCâu 67 / 100
A photochromic lens is a poor choice for a patient who wants dark lenses primarily where?
a.Inside a car (windshield blocks UV)
b.Outdoors on a sunny day
c.In the snow
d.At the beach
Giải thích
Because most photochromics activate with UV, and car windshields block much of the UV, the lenses stay relatively light while driving. A polarized or fixed-tint sunglass better serves in-car darkening.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
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