单项选择题
The following transpositions are correct：（）
A.PL/-2.00X180=-2.00/+2.00X90
B.+2.00/-0.50X60=+2.50/+0.50X150
C.-1.25/+0.75X4=-0.50/-0.75X86
D.+7.00/-2.00X78=+5.00/+2.00X12
E.+0.25/-3.00X50=-3.25/+3.00X140
相关考题
-
单项选择题
which of the following is correct about Jackson cross-cylinder：（）
A.a -0.50D sphere is coupled with a -1.00D cylinder
B.is useful in refining the spherical power during trial of lens
C.the handle is mounted parallel to one of the axis of the cylinders
D.when refining the power of a trial cylinder，the handle of the Jackson cross-cylinder is placed in line with the axis of the trial cylinder
E.a Jackson cross-cylinder designated 1.00D consists of a +1.00D cylinder -
单项选择题
下面哪项不是ICE综合征的临床特征（）
A.裂隙灯检查见角膜后部有细小银屑样特征改变，类似于Fuchs角膜内皮营养不良外观，可伴轻度角膜水肿
B.UBM检查可见广泛的虹膜周边前粘连
C.前房角镜检查可见“后胚环”结构
D.裂隙灯检查见虹膜轻度萎缩，偶见瞳孔变形或孔洞形成 -
单项选择题
下面哪个选项不是ICE综合征患眼的影像学检查特征（）
A.UBM检查可见虹膜与角膜内皮回声局限或部分相贴，虹膜内可探及多腔隙样无回声区。
B.左眼前节OCT可见角膜内皮与虹膜周边粘连。
C.共聚焦显微镜检查见角膜内皮细胞普遍增大，可见细胞核，局部可见”风筝样”细胞。
D.角膜内皮镜检查见六边形细胞比例增高。
