1. Contact-angle analysis of intraocular lenses
- Author
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Crystal M. Cunanan, Massoud Ghazizadeh, Patricia M. Knight, and Shelley Y. Buchen
- Subjects
Materials science ,Bubble ,medicine.medical_treatment ,Captive bubble method ,Biocompatible Materials ,Intraocular lens ,Contact angle ,Surface tension ,Sessile drop technique ,Optics ,medicine ,Polymethyl Methacrylate ,Surface Tension ,Lenses, Intraocular ,Measurement method ,business.industry ,Water ,Sensory Systems ,Ophthalmology ,Acrylates ,Intraocular lenses ,Microscopy, Electron, Scanning ,Silicone Elastomers ,Surgery ,business ,Electron Probe Microanalysis ,Biomedical engineering - Abstract
Purpose: To present contact-angle measurements of commercially available intraocular lenses (IOLs) in air and in water to facilitate the understanding of how various OLs might interact in different environments. Setting: Laboratory. Methods: Five commercially available IOLs were studied: AMO® DuraLens® PS-59NB™, AMO PhacoFlex® SI-26NB™, AMO PhacoFlex II® SI-30NB®, Chiron® ChiroFlex® C10UB, and Alcon® AcrySof® MA60BM. The AMO soft acrylic model AR40™, currently under clinical study, was also evaluated. Contact-angle measurements were made in air and in water using sessile drop and captive bubble methods. Results: The sessile drop method indicated that all materials were hydrophobic in air. The captive bubble method differentiated materials based on their polar and dispersive forces. Conclusion: Contact-angle measurements differed depending on the test conditions. Proper choice of contact-angle measurement method can generate useful information about a material surface and its potential biomaterial interactions.
- Published
- 1998