A randomised clinical trial of multifocal contact lenses and contact lens discomfort

Purpose To determine how multifocal contact lenses affect contact lens discomfort. Methods This randomised, participant‐masked, crossover clinical trial fitted 84 uncomfortable soft contact lens wearers (30–40 years old) with single vision and multifocal contact lenses. Contact lens discomfort was assessed using the Contact Lens Dry Eye Questionnaire‐8 (CLDEQ‐8). Results There was no difference between multifocal and single vision survey scores (p = 0.08). There was an interaction between lens type and age group (p = 0.05). CLDEQ‐8 scores with the single vision lens were less symptomatic than multifocal scores in participants