DispensingCâu 65 / 100
Wrap angle (face-form) that is too aggressive on a high-powered Rx can cause what?
a.Better peripheral vision
b.No optical effect
c.Unwanted prism and blur unless the lens is compensated
d.Lighter weight
Giải thích
Excess wrap tilts the lens relative to the line of sight, inducing unwanted cylinder and prism, especially in stronger prescriptions. Compensated (wrap) lens designs correct for this tilt.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- For a high-plus (aphakic-type) lens, choosing a smaller frame does what?
- When fitting a progressive lens, accurate fitting-cross placement is critical because what?
- A patient complains of temple pain behind the ears with new glasses. The best adjustment is to do what?
- Which patient complaint most suggests the PD was measured or set too wide?
- A photochromic lens is a poor choice for a patient who wants dark lenses primarily where?
- Anti-reflective coating is especially recommended for which patients?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với ABO (American Board of Opticianry) Certified Optician Exam · Quy trình kiểm tra