Purpose: To characterize and compare the prevalence of soft contact lens-related (SCL) dryness symptoms in large populations of SCL wearers in North America (NAm) and the United Kingdom (UK).
Methods: SCL wearers from NAm (n = 1443) and UK (n = 932) sites completed self-administered questionnaires on SCL symptoms and wearing experiences. A categorization for contact lens-related dry eye (CL-DE) was applied that combined Contact Lens Dry Eye Questionnaire (CLDEQ) items on dryness frequency and intensity at the end of the day (CL-DE+ = constantly/frequently/sometimes plus intensity = 3-5, and CL-DE- = never/rarely plus intensity = 0-1, Marginal = all other ratings).
Purpose: To report demographics, wearing patterns, and symptoms from soft contact lens (SCL) wearers with significant SCL-related dryness symptoms with and without significant ocular signs of dryness.
Methods: In a multicenter, prospective observational clinical trial, symptomatic SCL wearers reported significant SCL-related dryness via self-administered questionnaire of frequency and intensity of dryness after a dry eye (DE) examination. DE etiology was assigned post hoc by an expert panel, and those with and without significant DE-related signs were analyzed by univariate logistic regression.
Purpose: To estimate the prevalence of and factors associated with contact lens-related dryness symptoms in a large population of soft contact lens patients in the UK.
Methods: Soft contact lens (CL) wearers (n=932) from 12 UK clinical sites were queried regarding CL history and wearing experience by a self-administered questionnaire. A new score using Contact Lens Dry Eye Questionnaire (CLDEQ) items was used where CL-related dry eye (CL-DE)=frequency of 'sometimes', 'frequently', or 'constantly' plus intensity 3-5; NoCL-DE=frequency of 'never' or 'rarely' and intensity 0-1; Marginal CL-DE, all other categories.