Eschmann R, Bigar F
Klin Monbl Augenheilkd. 1984 May;184(5):350-2. doi: 10.1055/s-2008-1054487.
The principal criteria for the correction of keratoconus with spectacles are the upper radii values, meridian differences and the position of the apex in relation to the fixation line. Possibilities of correction with contact lenses may be limited by optical (opacities, bad peripheral image influence etc.) and fitting factors (among others increasing ectasis, major differences in the arrow height between the apex of the cone and the surrounding cornea). Some of the problems encountered hitherto can be solved with a new "smooth flat fitting" lens.
使用眼镜矫正圆锥角膜的主要标准是上部半径值、子午线差异以及圆锥顶点相对于固定线的位置。使用隐形眼镜进行矫正的可能性可能会受到光学因素（如混浊、周边图像影响不佳等）和适配因素（包括圆锥扩张加剧、圆锥顶点与周边角膜之间矢高差异较大等）的限制。迄今遇到的一些问题可以通过新型“平滑扁平适配”镜片来解决。
