Prescription AnalysisCâu 47 / 100
Prism prescribed as '2 base out' in each eye is used to help with what?
a.Vertical alignment
b.Convergence or divergence problems (horizontal)
c.Reading add
d.Color vision
Giải thích
Base out and base in prism address horizontal deviations of the eyes, aiding fusion for esophoria or exophoria. Vertical deviations use base up or base down prism.
Luyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Hand neutralization of an unknown lens uses what technique?
- With-the-rule astigmatism typically has the cylinder axis oriented near what?
- An Rx reads OD +1.50 -0.50 x 090, OS +1.50 -0.50 x 090, Add +2.25. What is the near power in each eye?
- A patient needs 3 prism diopters base down in the right lens. If the lens is +2.00 D, how much decentration achieves this (Prentice's rule)?
- Slab-off prism is used to correct what condition in a multifocal wearer?
- The written Rx 'OU' means 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