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Abstract
Purpose: To measure the adhesiveness of the AcrySof® intraocular lens (IOL) to a collagen film to ascertain its capacity to adhere to the lens capsule.Setting: Haibara General Hospital, Haibara, and Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan.Methods: Each of five AcrySof IOLs was attached to a collagen film, slightly pressed in intraocular irrigating solution, and then pulled up and off the film with a DuNouy's surface balance. The force recorded by the surface balance at the moment it detached from the film was defined as the lens' adhesiveness. A control experiment was performed using five conventional poly(methyl methacrylate) (PMMA) IOLs.Results: Mean adhesiveness was 2.76 gram-weight (gw) ± 0.55 (SD) for AcrySof and 0.81 ± 0.20 gw for PMMA. The difference was statistically significant (P < .0001, t-test).Conclusion: AcrySof may have a strong tendency to adhere to the lens capsule, contributing to posterior and anterior capsule clarity and preventing lens decentration in vivo.
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