Gordon et al identified factors predictive of a penetrating keratoplasty being performed on a patient with keratoconus. The authors are participants in the Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study and are from multiple universities in the United States.


Patient selection: keratoconus


Factors identifying patients who underwent a penetrating keratoplasty:

(1) young to middle-aged adult (younger, with mean age 35 years)

(2) worse visual acuity

(3) worse vision-related quality of life

(4) poor contact lens comfort

(5) corneal scarring

(6) steeper values on keratometric readings


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