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[单选题]
验光处方-5.00DS/-0.75DC×180;角膜曲率计读数:7.94mm@180,42.50D@180;7.80mm@90,43.25D@90;基弧=平均K值+0.1mm;该设计以0.1mm为一级;请根据上述眼睛和镜片设计的资料,计算经验法验配所需RGP镜片的后光学曲率半径( )
A.7.90mm
B.8.00mm
C.7.95mm
D.7.97mm
查看答案
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A.7.90mm
B.8.00mm
C.7.95mm
D.7.97mm
A.-5.00DS
B.-4.74DS/-0.75DC×180
C.-4.50DS
D.-4.75DS
A.-1.50DS
B.-1.00DS
C.+0.50DS
D.0.00DS
E.+1.50DS
A.A.因为戴镜验光度数比预期的负数大,所以试戴镜配适过陡
B.B.因为戴镜验光度数比预期的正数大,所以试戴镜配适过平
C.C.因为戴镜验光度数如预期,所以试戴配适匹配
A.-1.00DS/-2.00DC×100
B.-2.00DS/-0.50DC×80
C.-5.00DS/-1.00DC×70
D.-7.00DS/-2.50DC×90
A.透氧性=100units,Tc·=0.15mm
B.透氧性=20units,Tc·=0.15mm
C.透氧性=100units,Tc·=0.18mm
D.透氧性=50units,Tc·=0.15mm