Daily disposable vs. disposable extended wear: A contact lens clinical trial

Background: The purpose of this work was to compare traditional standards o f contact lens success and patient-reported preferences in the daily-dispos able and disposable extended-wear contact lens modalities. Methods: This st udy was a randomized, cross-over contact lens clinical trial involving 50 p atients. After the baseline examination, two outcome examinations were perf ormed including the self-administration of the Refractive Status and Vision Profile (RSVP) survey, an additional survey, and masked visual acuity and slit-lamp assessments. Results: No differences were noted on the RSVP when comparing treatment modalities. Patients were considered equally successful in terms of weaving time, overall comfort, visual acuity, and ocular healt h criteria. In terms of patient preferences, a significant number of patien ts preferred the disposable extended-wear modality over the daily-disposabl e modality (chi (2)(1) = 4.08, p = 0.04). Patients preferred disposable ext ended-wear over daily-disposables due to convenience (odds ratio = 30.33). Conclusions: Disposable extended-wear represents a convenient contact lens option for contact lens patients. (Optom Vis Sci 2000;77:637-647).