Dimensional stability of several hard contact lens materials.
Hard contact lenses of identical specification, but manufactured from different materials, were immersed in water for up to 168 hours. The back central optic radius of each lens was periodically measured. The magnitude and time course of curvature change during hydration were found to vary with the material.
D000042:Absorption; D002482:Cellulose / Q000031:analogs & derivatives; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003261:Contact Lenses; D008768:Methylmethacrylates; D011108:Polymers; D011205:Povidone; D013500:Surface Tension; D013997:Time Factors; D014867:Water
D008768:Methylmethacrylates; D011108:Polymers; D014867:Water; D002482:Cellulose; D011205:Povidone