OBJECTIVE The aim of the study was to study the results of LaAIK for myopia over -12.00 D. METHODS Surgery was done using Hansatome microkeratome and Nidek EC-5000 excimer laser. One hundred forty-five eyes were followed for a minimum of 6 months to assess the extent of correction and the gain or loss of lines as compared of previous spectacle correction. RESULTS Forty percent of eyes gained at least one line, 56% remained the same, and 4% lost one line of visual acuity. Thirty-five eyes were undercorrected with the majority between 0 and -5.00 D. One hundred ten eyes achieved their preoperative best spectacle-corrected visual acuity with no correction. Complications were minimal. CONCLUSIONS LASIK with the Nidek EC-5000 excimer laser achieved good results in eyes with myopia over -12.00 D. [J Refract Surg 2000; 16(suppl):S247-S250].