Excimer laser photorefractive keratectomy on high myopia


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Purpose: Retrospective study to summarize the results of excimer laser photorefractive keratectomy (PRK) on high myopia. Method: Excimer laser PRK was performed using a Telco excimer laser unit using standard program setting, single diameter ablation zone and set on maximal correction (15 D). This treatment was performed on 55 eyes with high myopia ranging from -10.00 to -24.50 diopters (D); group I: 49 eyes ranging from -10.00 to -15.00 D, mean -11.70 D; group II: 9 eyes ranging from -16.00 to -24.50 D. The follow up were done at the end of the 3rd, 6th, 12th, 18th and 24th month respectively. Results: 3 months after PRK the mean spherical equivalent correction (SEQ) was -0.20 D (sd 2.14); 6, 12, 18 and 24 months after PRK it was -0.60 D (sd 1.53); -1.30 D (sd 0.96); -1.11 D (sd 1.64); -0.76 (sd 1.34) respectively. In group II the results showed great variations. Haze were noted on 14 eyes (25%). Conclusion: PRK was effective to reduce myopia. Myopia of more than -15.00 D showed variable results. Regressions were noted in longer follow up.

Original languageEnglish
Pages (from-to)172-177
Number of pages6
JournalMedical Journal of Indonesia
Issue number3
Publication statusPublished - 1 Jul 1997


  • Haze
  • Mean spherical equivalent correction
  • Regression


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