Softcon: an extended wear study.
Forty-eight subjects were fitted with a new design Softcon lens to determine the acceptability of the lens for extended wear. The subjects were monitored for periods of up to two years of extended wear. Periodic measurements or observations were made of visual acuity, keratometry, biomicroscopy, and refraction. The results showed that there was a high degree of acceptability of the lens, with less than three percent of the subjects manifesting significant changes in measurements or observations.