OCULAR SURGERY NEWS EUROPE/ASIA-PACIFIC EDITION February 2007
英文省略紹介
PRK, LASIK found stable at 10 years in large series
Efficacy, safety and predictability were maintained throughout the study in eyes with low, intermediate and high myopia.
By Jared Schultz
Dr. Alio’s study, funded by the Spanish government, included 500 eyes treated with PRK for a mean spherical equivalent of -6.5 D and 300 eyes treated with LASIK for a mean spherical equivalent of -11.8 D. All procedures were performed with the Visx Twenty/Twenty excimer laser, manufactured by Visx before that company’s acquisition by Advanced Medical Optics.
No re-treatments were performed beyond 6 months postoperatively, and the patients were followed up at 3 months and 1, 2, 5 and 10 years, he said.
Overall results showed that after 10 years, PRK had a safety index of 1 and an efficacy index of 1.7. LASIK had a safety index of 1.17 and an efficacy index of 0.83, he said.
Three cases of corneal ectasia were seen in the LASIK group, but Dr. Alio explained that these occurred before current standards and indications for LASIK had been developed.
“Ectasia was not detected in any case or as a trend,”he said.
