The main purpose of the Lens/Solution
biocompatibility study was to determine which lens/solution
interact without causing excessive corneal staining. These results
are shown on the main Staining Grid page of this web site.
A second goal of this study was to determine if a relationship exists between corneal staining and lens wearing comfort.
Subjects were instructed to rate the subjective comfort of the lens/solution combination at 10 minutes, 2 hours, and 4 hours
after lens insertion using a 100-point comfort scale
. This figure shows the average Staining Area (%) versus the average
Comfort Rating of each lens/solution combination tested to this point. Saline (control) results are excluded.