角膜曲率仪测定的水平径线为8.0mm,垂直径线为7.8mm,则散光为()。
A: —1.00*180
B: —1.00*90
C: +1.00*90
D: +1.00*180
A: —1.00*180
B: —1.00*90
C: +1.00*90
D: +1.00*180
A,C
举一反三
- 如:-3.00×90/-4.00×180=-3.00/-1.00×180或-4.00/+1.00×90()
- 当角膜曲率仪测定结果为42.00@95,41.50@5,主觉验光为-1.50/-1.50×5,此时眼内散光为 A: -2.00×5 B: -1.00×5 C: -2.00×95 D: -1.00×95
- 当角膜曲率仪测定结果为41.00@95,40.50@5,主觉验光为-1.50/-1.50×5,此时眼内散光为 A: -1.00×5 B: -2.00×5 C: -1.00×95 D: -2.00×95
- 当角膜曲率仪测定结果为41.50@5,40.50@95,主觉验光为-0.50/-1.50*5,此时角膜散光为 A: -0.50*5 B: -1.50*5 C: -1.00*5 D: -1.50*95
- 某患者近视-5.00/-1.00*180,角膜FK: 44.00@180,SK: 45.00@90,试戴片为43.50/-4.00/10.6,求理论降度( )
内容
- 0
25℃时,水的离子积是() A: 1.00×10-14 B: 1.00×10-7 C: 1.00×1014 D: 1.00×107
- 1
填料密封中,填料压盖与轴套的直径间隙为()mm。 A: 0.65~0.80 B: 0.75~1.00 C: 0.60~0.80
- 2
-6.00/+5.00=() A: -11.00 B: -1.00 C: +1.00 D: +11.00
- 3
下列透镜中有发散作用的是() A: +3.00D B: +4.00D C: -3.00/+1.00×180
- 4
As of today, the spot exchange rate is €1.00 = $1.60 and the rates of inflation expected to prevail for the next year in the U.S. is 2% and 3% in the euro zone. What is the one-year forward rate that should prevail? ( ) A: €1.00 = $1.6157 B: €1.6157 = $1.00 C: €1.00 = $1.5845 D: $1.00 × 1.03 = €1.60 × 1.02