Instruments & RegulatoryCâu 79 / 100
A lensmeter (focimeter) is used to measure what?
a.Pupillary distance
b.The power, axis, add, and optical center of a lens
c.Frame temple length
d.Corneal curvature
Giải thích
The lensmeter reads a lens's sphere and cylinder power, cylinder axis, add power, optical center location, and any prism. It is the primary verification instrument in an optical lab and dispensary.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- A pupillometer is designed to measure what?
- Under FDA regulations, all dress eyewear lenses sold in the United States must be what?
- The FDA drop-ball test for impact resistance drops what onto the lens?
- ANSI Z80.1 is the American National Standard that specifies what?
- Occupational and safety eyewear in the U.S. is governed by which standard?
- Safety frames and lenses that meet the high-impact standard are marked with what?
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