Conclusion RGP can get a better correcting vision to keratoconus than spherical-cylindrical lens, and is the good non-operative treatment to correct ametropia of keratoconus.

• 结论RGP对圆锥角膜的视力矫正效果优于框架眼镜，是非手术矫止圆锥角膜的有效方法。