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High K value, scarring are risk factors for PK in keratoconus

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PHILADELPHIA — Scarring and high keratometry values at initial presentation are risk factors that may help to predict the likelihood of a keratoconus patient requiring a corneal transplant, a retrospective study found. This information may aid in patient counseling, the study authors said.

Researchers at Wills Eye Hospital conducted a chart review of 109 keratoconus patients followed for an average of 10.9 years. Overall, 34 patients had penetrating keratoplasty (PK) performed in one eye for keratoconus, 36 had PK in both eyes and 39 did not have PK in either eye. The presence of scarring and steep keratometry values were significant risk factors for subsequent PK.

The study is published in Cornea.