Objective clinical performance of 'comfort-enhanced' daily disposable soft contact lenses.

Purpose: To examine the objective clinical performance of 'comfort-enhanced' daily disposable contact lenses over a 16-h day.

Methods: Four contact lenses (Hilafilcon B, Etafilcon A Plus, Nelfilcon A and Nelfilcon A Plus) were evaluated in an investigator masked, open label trial at the end of a week's bilateral wear. Pre-lens non-invasive tear break-up time (PL-NITBUT), tear prism height, bulbar hyperaemia and ocular surface temperature (OST) were measured with the lens in situ at 8, 12 and 16h of wear.