[A quality of life questionnaire for Japanese allergic conjunctival disease].

Purpose: To establish a specific quality of life (QOL) questionnaire for Japanese allergic conjunctival disease (ACD) (Japanese allergic conjunctival disease QOL questionnaire: JACQLQ).
Subjects and Methods: A multicenter study was conducted in 521 patients with ACD and 127 healthy volunteers (total 648 cases). The JACQLQ ver. 0 was developed by modifying the Japanese rhino-conjunctivitis QOL questionnaire (JRQLQ). The participants were asked to complete the questionnaire, and objective scores were determined by an ophthalmologist using a slit lamp. To confirm validity, item and factor analyses were conducted and correlation coefficients were calculated.
Results: The items were grouped into four subscales (Daily activity, Psychological well-being, Eye symptoms, Nasal symptoms) after factor analysis. The JACQLQ had good item-internal consistency (Cronbach's alpha: 0.846-0.934). QOL scores were correlated with eye itching, eye irritation and tearing. Objective scores were correlated with eye redness, eye itching and eye irritation. Face scores were correlated with eye itching, eye irritation and eye redness.
Conclusion: The JACQLQ is a useful tool for assessing disease specific QOL in ACD.