下圖光學十字之處方度數為何?

A+2.00DS/-3.00DC×180 或-1.00DS/+3.00DC×090正確答案
B+2.00DS/-1.00DC×180 或-1.00DS/+2.00DC×090
C+2.00DS/-3.00DC×090 或-1.00DS/+3.00DC×180
D+2.00DS/-1.00DC×090 或-1.00DS/+2.00DC×180
答案與詳解

+2.00DS/-3.00DC×180 與 -1.00DS/+3.00DC×090 互為負/正柱轉換,與光學十字一致。
