Adhesiveness of AcrySof to a collagen film.
OBJECTIVE
To measure the adhesiveness of the AcrySof intraocular lens (IOL) to a collagen film to ascertain its capacity to adhere to the lens capsule.


METHODS
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).


CONCLUSIONS
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.
Nagata
T
T
Department of Ophthalmology, Hamamatsu University School of Medicine, Shizuoka, Japan.
Minakata
A
A
Watanabe
I
I
D000179:Acrylates / Q000378:metabolism*; D000268:Adhesiveness; D001672:Biocompatible Materials; D003094:Collagen / Q000378:metabolism*; D007910:Lenses, Intraocular; D019904:Polymethyl Methacrylate / Q000378:metabolism
D000179:Acrylates; D001672:Biocompatible Materials; D003094:Collagen; D019904:Polymethyl Methacrylate