title: Comparison of shape recovery ratios in various intraocular lens haptics.
abstract: Since understanding the mechanical properties of intraocular lens (IOL) haptic materials can minimize decentration after surgery, we have examined shape recovery ratios of various intraocular lens haptics (polypropylene [PP], polyvinylidene fluoride [PVDF], extruded poly(methyl methacrylate) [PMMA]) currently on the market under conditions that approximate clinical use. The results using various Ascon lens-holding forceps and compression tests, during which the lenses were held in a cylindrical holder for seven days, one month, and three months, indicated that PVDF haptics had better shape recovery capability than PP and extruded three-piece PMMA haptics.
authors.affiliation: Kimura Eye & Internal Medicine Hospital, Hiroshima, Japan.
authors.forename: W
authors.initials: W
authors.lastname: Kimura
authors.forename: T
authors.initials: T
authors.lastname: Kimura
authors.forename: T
authors.initials: T
authors.lastname: Sawada
authors.forename: T
authors.initials: T
authors.lastname: Kikuchi
authors.forename: H
authors.initials: H
authors.lastname: Toda
authors.forename: Y
authors.initials: Y
authors.lastname: Yamada
authors.forename: H
authors.initials: H
authors.lastname: Nagai
mesh_terms: D007910:Lenses, Intraocular; D020366:Methylmethacrylate; D008768:Methylmethacrylates / Q000737:chemistry*; D011126:Polypropylenes / Q000737:chemistry*; D011145:Polyvinyls / Q000737:chemistry*; D013314:Stress, Mechanical; D013696:Temperature; D005465:Fluorocarbon Polymers
chemical_list: D020366:Methylmethacrylate; D008768:Methylmethacrylates; D011126:Polypropylenes; D011145:Polyvinyls; C024865:polyvinylidene fluoride; D005465:Fluorocarbon Polymers