DispensingCâu 70 / 100
A patient with a strong Rx wants the thinnest possible lens. Besides high-index material, what frame choice helps most?
a.A small, well-centered frame matching their PD
b.A large aviator
c.A rimless mount only
d.A thick plastic frame
Giải thích
A smaller frame that closely matches the patient's PD minimizes decentration and the amount of lens outside the optical center, reducing both edge thickness (minus) and center thickness (plus).
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A photochromic lens is a poor choice for a patient who wants dark lenses primarily where?
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- For a progressive lens, insufficient seg/fitting height (frame too shallow) causes what problem?
- When dispensing polycarbonate, which coating is nearly always added and why?
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