Mechanical characterization of contact lenses by microindentation: Constant velocity and relaxation testing

Acta Biomaterialia

Volumn 4, Issue 5, 2008, Pages 1560-1568

  Lee, Sung Jin ^a   Bourne, Gerald R ^b   Chen, Xiaoming ^a   Sawyer, W Gregory ^a   Sarntinoranont, Malisa ^a  

^a UNIVERSITY OF FLORIDA   (United States)

^b University of Florida   (United States)

Author keywords

Hydraulic conductivity; Hysitron; pHEMA MAA; Polymer; Poroelastic

Indexed keywords

CONTACT LENSES; FINITE ELEMENT METHOD; HYDROGELS; NONDESTRUCTIVE EXAMINATION;

CONSTANT VELOCITIES; FORCE RESPONSE; HYDRAULIC PERMEABILITY; HYDROGEL CONTACT LENS; HYSITRA; INDENTERS; MECHANICAL CHARACTERIZATIONS; PHEMA-MAA; POROELASTIC; YOUNG MODULUS;

ELASTIC MODULI;

ANALYTICAL ERROR; ARTICLE; CONTROLLED STUDY; FINITE ELEMENT ANALYSIS; FORCE TRANSDUCER; HYDRAULIC PERMEABILITY; HYDROGEL; MATHEMATICAL COMPUTING; MECHANICAL STRESS; MICROINDENTATION; NANOTECHNOLOGY; PRIORITY JOURNAL; SIMULATION; SOFT CONTACT LENS; THICKNESS; TIME; VELOCITY; YOUNG MODULUS;

EID: 48449089134     PISSN: 17427061     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.actbio.2008.02.021     Document Type: Article

References (22)

1. Nicolson P.C., and Vogt J. Soft contact lens polymers: an evolution. Biomaterials 22 (2001) 3273-3283
2. Holden B.A., Stephenson A., Stretton S., Sankaridurg P.R., O'Hare N., Jalbert I., et al. Superior epithelial arcuate lesions with soft contact lens wear. Optomet Vis Sci 78 1 (2001) 9-12
3. Jones L.W., and Jones D.A. Common contact lens complications: their recognition and management (2000), Butterworth-Heinemann, Oxford
4. Kikkawa Y. Soft contact lens kinetics. In: Ruben M., and Guillon M. (Eds). Contact lens practice (1994), Chapman & Hall, London 113-121
5. Ebenstein D.M., and Pruitt L.A. Nanoindentation of soft hydrated materials for application to vascular tissues. J Biomed Mater Res Part A 69A 2 (2004) 222-232
6. Ebenstein D.M., Kuo A., Rodrigo J.J., Reddi A.H., Ries M., and Pruitt L. A nanoindentation technique for functional evaluation of cartilage repair tissue. J Mater Res 19 1 (2004) 273-281
7. Hale J.E., Rudert M.J., and Brown T.D. Indentation assessment of biphasic mechanical property deficits in size-dependent osteochondral defect repair. J Biomech 26 11 (1993) 1319-1325
8. Mak A.F., Lai W.M., and Mow V.C. Biphasic indentation of articular cartilage - I. Theoretical analysis. J Biomech 20 7 (1987) 703-714
9. Mow V.C., Gibbs M.C., Lai W.M., Zhu W.B., and Athanasiou K.A. Biphasic indentation of articular cartilage - II. A numerical algorithm and an experimental study. J Biomech 22 8-9 (1989) 853-861
10. Spilker R.L., Suh J.K., and Mow V.C. A finite-element analysis of the indentation stress-relaxation response of linear biphasic articular-cartilage. J Biomech Eng 114 2 (1992) 191-201
11. Jacot J.G., Dianis S., Schnall J., and Wong J.Y. A simple microindentation technique for mapping the microscale compliance of soft hydrated materials and tissues. J Biomed Mater Res Part A 79a 3 (2006) 485-494
12. Olberding J.E., and Suh J.K.F. A dual optimization method for the material parameter identification of a biphasic poroviscoelastic hydrogel: potential application to hypercompliant soft tissues. J Biomech 39 (2006) 2468-2475
13. Chiarelli P., Basser P.J., Derossi D., and Goldstein S. The dynamics of a hydrogel strip. Biorheology 29 (1992) 383-398
14. Enns JB. Dynamic mechanical properties of hydrogels. Proc 1996 54th Annu Tech Conf 1996;3:2852-6.
15. Yasuda H., Lamaze C.E., and Peterlin A. Diffusive and hydraulic permeabilities of water in water-swollen polymer membranes. J Polym Sci Part a-2-Polym Phys 9 6 (1971) 1117-1131
16. Refojo M.F. Permeation of water through some hydrogels. J Appl Polym Sci 9 10 (1965) 3417
17. Monticelli M.V., Chauhan A., and Radke C.J. The effect of water hydraulic permeability on the settling of a soft contact lens on the eye. Curr Eye Res 30 5 (2005) 329-336
18. Kim S.H., Opdahl A., Marmo C., and Somorjai G.A. AFM and SFG studies of pHEMA-based hydrogel contact lens surfaces in saline solution: adhesion, friction, and the presence of non-crosslinked polymer chains at the surface. Biomaterials 23 7 (2002) 1657-1666
19. Opdahl A., Kim S.H., Koffas T.S., Marmo C., and Somorjai G.A. Surface mechanical properties of pHEMA contact lenses: viscoelastic and adhesive property changes on exposure to controlled humidity. J Biomed Mater Res Part A 67A 1 (2003) 350-356
20. Chen X., Dunn A.C., Sawyer W.G., and Sarntinoranont M. A biphasic model for micro-indentation of a hydrogel-based contact lens. J Biomech Eng 129 (2007) 156-163
21. Goldsmith A.A.J., and Clift S.E. Investigation into the biphasic properties of a hydrogel for use in a cushion form replacement joint. J Biomech Eng 120 3 (1998) 362-369
22. King-Smith P.E., Fink B.A., Hill R.M., Koelling K.W., and Tiffany J.M. The thickness of the tear film. Curr Eye Res 29 4-5 (2004) 357-368