Patiens and methods Myopic PRK (Photorefraktive Keratectomy) has been performed on 116 eyes (myopia of between -3.0 D and -25.5 D) in the eye clinic of Lucerne, since october 1990. 25 patients had both eyes treated, 7 eyes were retreated. Results Results are satisfactory for myopia of up to -10 D (-15 D); treatment of the higher myopia is problematic. Conclusion Regression was the biggest problem in all patients, being the more pronounced the higher the ablation. Based on this experience recommendations for treatment are given.