Abstract
IntroductionThe aim of this study is to determine the best cut-off value for the Standardized Patient Evaluation of Eye Dryness Portuguese version questionnaire and verify possible differences between the questionnaire score and different age groups.MethodsThe clinical validation of the Standardized Patient Evaluation of Eye Dryness Portuguese version was performed by completing this and the Ocular Surface Disease Index in Portuguese version questionnaire, in 180 volunteers (68.9% female), with an age range of 19–96 years.ResultsAn excellent degree of reliability was found between the Standardized Patient Evaluation of Eye Dryness Portuguese version and the Ocular Surface Disease Index Portuguese version questionnaires (Cronbach’s Alpha = 0.824). The Receiver Operating Characteristic curve analysis revealed a cut-off of 8 points (Sensitivity of 71.2% and Specificity of 71%). Furthermore, the area under the curve of the Receiver Operating Characteristic curve was 0.813, indicating that Standardized Patient Evaluation of Eye Dryness Portuguese version questionnaire is a good diagnostic tool and interchangeable with the Ocular Surface Disease Index questionnaire.ConclusionThe Standardized Patient Evaluation of Eye Dryness Portuguese version questionnaire is a reliable tool for the detection of dry eye symptoms in the Portuguese population with a broad age range.
Published Version
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