[An analysis of severe complications of radial keratotomy]

Seven cases with severe complications threatening vision, including intraocular infection, corneal leucoma, secondary glaucoma, cataract and delayed rupture of corneal incisions following radial keratotomy (RK) were presented. The causes of the complications are related to corneal perforation and decreased tensile strength of the eye. Correct selection of indications, perfection of technique and instruments, avoidance of corneal perforation and prevention of infection are the measures to prevent severe complications following RK.