A.0D B.-1.00D C.-2.00D D.-3.00D
A.右眼鼻則為零 B.右眼顳則為零 C.左眼鼻則為零 D.左眼顳則為零
A.+2.00DS/-1.00DC*180° B.-2.00DC*180°/-1.00DC*90° C.-1.00DS/-1.00DC*90° D.-2.00DC*90°/-1.00DC*180°