title: A comparison of different rigid contact lenses: edge thicknesses and contours.
abstract: The edge thickness and contour of rigid lenses is an important factor in lens comfort and acceptance. In this study the edges of two CAB lenses, a PMMA-silicone combination lens, a pure silicone lens had standard PMMA lenses are evaluated by molding the lenses. Considerable variation in thickness and contour of the peripheral portion of the lenses were found.
mesh_terms: D003261:Contact Lenses / Q000592:standards*; D006801:Humans; D008768:Methylmethacrylates; D012828:Silicones
chemical_list: D008768:Methylmethacrylates; D012828:Silicones; C015464:polycon