题目内容
(请给出正确答案)
[单选题]
一RGP配戴者,镜片基弧为7.80mm,光学区直径为7.00mm,镜片配适满意,如想达到相同的配适,新镜片的基弧7.90mm,则光学区直径为多少( )
A.6.80mm
B.7.10mm
C.8.00mm
D.8.40mm
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A.6.80mm
B.7.10mm
C.8.00mm
D.8.40mm
A.-4.00D
B.-4.75D
C.-6.25D
D.-7.00D
A.7.65mm
B.7.80mm
C.7.90mm
D.8.00mm
A.9.00mm
B.9.20mm
C.9.30mm
D.9.40mm
A.7.60mm
B.7.70mm
C.7.80mm
D.7.90mm
A.-4.25DS
B.-1.75DS
C.+1.75DS
D.+1.25DS
A.-2.00DCX90
B.-2.00DCX180
C.+2.00DCX180
D.-2.00DS
A.-1.50DS
B.-1.00DS
C.+0.50DS
D.0.00DS
E.+1.50DS