Prescription AnalysisCâu 54 / 100
Reading an Rx that lists 'BO' after a prism value indicates the base is oriented how?
a.Base up
b.Base down
c.Base in
d.Base out
Giải thích
BO stands for base out, meaning the thick base of the prism points toward the ear (temporal side). BI means base in (toward the nose), BU base up, and BD base down.
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Đội Ngũ Biên Tập PrepPass · Đối chiếu với ABO (American Board of Opticianry) Certified Optician Exam · Quy trình kiểm tra