Binkhorst R D
Ophthalmology. 1979 Apr;86(4):672-4. doi: 10.1016/s0161-6420(79)35470-7.
Higher degrees of astigmatism are found after intraocular lens implantation than after routine cataract surgery. The cause is optical and is associated with the effectivity of lenses. The same amount of corneal astigmatism requires, in the spectacle correction, a cylinder that is smaller than, equal to, or larger than the corneal astigmatism, depending on whether the spherical equivalent of the refraction is a plus, zero, or minus sphere.
人工晶状体植入术后的散光程度高于常规白内障手术后。其原因是光学性的，与晶状体的有效性有关。相同量的角膜散光在眼镜矫正中所需的柱镜度数，取决于屈光不正的球镜等效值是正球镜、零球镜还是负球镜，可能小于、等于或大于角膜散光度数。
