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PRK may treat myopia, astigmatism in suspected keratoconic eyes over long term
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PRK was an effective treatment for mild myopia and astigmatism in select patients diagnosed with suspected keratoconus, according to a study.
The retrospective case analysis included 62 eyes of 42 patients who underwent myopic PRK using an EC-5000 excimer laser (Nidek) with a mean follow-up of 4.8 years.
Study results showed the mean postoperative spherical equivalent was –3.96 D with a mean simulated keratometry of 45.75 D and mean central pachymetry of 529.4 µm.
Two patients required glasses after treatment due to significant myopic regression, the study authors said. No cases of corneal ectasia were observed.
“Vision function was improved with refractive and corneal stability. However, treatment indications remain to be discussed on a case-by-case basis,” the study authors said.
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