Radial keratotomy: eleven-year experiences.
During the period from 1980 to 1991, Radial Keratotomy (RK) had been done by the author under topical anesthesia in more than 10,000 cases, mostly on both eyes at the same time. Those patients had myopia with a preoperative refractive error between 1.5 and 20.0 diopters (D). The surgical technique consisted of 4, 8, 16 incisions using a diamond knife with micrometer and the diameter of the central clear zone was mostly 3.0 mm and determined by preoperative refractive error. Many different procedures were tried to improve the effect of RK, including redeepening intentional microperforations at 1.5 mm, 3 mm, 5 mm distance from the corneal center. But these procedures had no significant effect 6 months after the operation. Complications such as infection, glaucoma, cataract, etc. were almost none. Results of RK on long term follow up showed hyperoptic tendency, and the visual fluctuation were none or minimal.
Chen
T T
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Te Tsaw Eye Center, Department of Ophthalmology, Taipei Medical College, China.
D005500:Follow-Up Studies; D006801:Humans; D007646:Keratotomy, Radial / Q000009:adverse effects / Q000379:methods*; D009216:Myopia / Q000601:surgery*; D054140:Refractive Surgical Procedures