下列何者是混合型順散光(mixed with the rule astigmatism)?
A+3.00DS/–2.00DC×180
B+2.00DS/-3.00DC×090
C-3.00DS/+2.00DC×180
D-2.00DS/+3.00DC×090正確答案
答案與詳解
-2.00DS/+3.00DC×090:球面-2.00,另一徑線-2.00+3.00=+1.00,一負一正為混合散光。轉換為負柱式:+1.00DS/-3.00DC×180,負柱軸在180°,屬順散光(with the rule)。
