• We studied satisfaction with the results of radial keratotomy one year after surgery on one eye as reported by 354 patients in the Prospective Evaluation of Radial Keratotomy (PERK) Study. We measured satisfaction using an index based on ten questions that were part of a longer psychometric questionnaire. Patients were generally satisfied with the results of radial keratotomy—48% were very satisfied, 42% were moderately satisfied, and 10% were dissatisfied. A lot of trouble with fluctuating vision was reported by 12% of patients before surgery and by 34% one year after surgery; 17% reported a lot of trouble with glare both before surgery and one year after surgery. The three major factors that influenced satisfaction were uncorrected visual acuity, residual refractive error, and subjective daily fluctuation in vision. A multiple regression equation that incorporated these three variables, glare, and patient sex was able to predict only 46% of the variance in patient satisfaction.
Bourque LB, Cosand BB, Drews C, Waring GO, Lynn M, Cartwright C. Reported Satisfaction, Fluctuation of Vision, and Glare Among Patients One Year After Surgery in the Prospective Evaluation of Radial Keratotomy (PERK) Study. Arch Ophthalmol. 1986;104(3):356-363. doi:10.1001/archopht.1986.01050150056026