Can we also get a page, "List of (Semi) Rigid Contact Lens Materials" ? — Preceding unsigned comment added by 96.232.230.52 (talk) 18:55, 26 March 2017 (UTC)
Use of the value Dk/t is meaningless unless the t value is specified. Either delete the column or specify what t value is used for which particular lens and which particular power. — Preceding unsigned comment added by Eyecheck (talk • contribs) 18:08, 17 July 2020 (UTC)