Comparative study of silicone-hydrogel contact lenses surfaces before and after wear using atomic force microscopy

Journal of Biomedical Materials Research - Part B Applied Biomaterials

Volumn 85, Issue 2, 2008, Pages 361-367

  Lira, Maria ^a   Santos, L ^a   Azeredo, J ^a   Yebra Pimentel, E ^b   Real Oliveira, M Elisabete C D ^a  

^a UNIVERSITY OF MINHO   (Portugal)

^b UNIVERSITY OF SANTIAGO DE COMPOSTELA   (Spain)

Author keywords

Atomic force microscopy; Contact lens; Degradation; Polymer; Surface analysis

Indexed keywords

ATOMIC FORCE MICROSCOPY; DEGRADATION; HYDROGELS; POLYMER MATRIX; SILICONES; SURFACE ANALYSIS; WEAR OF MATERIALS;

CLINICAL TOLERANCE; ROUGHNESS PARAMETERS; SURFACE APPEARANCE;

CONTACT LENSES;

BALAFILCON A; GALYFILCON A; LOTRAFILCON B; SILICONE;

ARTICLE; ATOMIC FORCE MICROSCOPY; CONTACT LENS; HYDROGEL; SURFACE PROPERTY;

CONTACT LENSES, HYDROPHILIC; FEMALE; HUMANS; HYDROGELS; MALE; MATERIALS TESTING; MICROSCOPY, ATOMIC FORCE; SILICONES; SURFACE PROPERTIES;

EID: 42649109736     PISSN: 15524973     EISSN: 15524981     Source Type: Journal    
DOI: 10.1002/jbm.b.30954     Document Type: Article

References (22)

1. Tighe B. Silicone hydrogel materials - How do they work? In: Sweeney DF, editor. Silicone Hydrogels. The Rebirth of Continuous Wear Contact Lenses. Oxford: Butterworth-Heinemann; 2000. pp 1-21.
2. Nicolson PC. Continuous wear contact lens surface chemistry and wearability. Eye Contact Lens 2003;29:S30-S32.
3. Jones L, Dumbleton K. Silicone hydrogels contact lenses, Part 1. Evolution and current status. Optometry Today 2002;20:26-32.
4. Lopez-Alemany A, Compan V, Refojo MF. Porous structure of purevision versus focus night & day and conventional hydrogel contact lenses. J Biomed Mater Res 2002;63:319-325.
5. Kim SH, Opdahl A, Marmo C, Somorjai GA. 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 2002;23:1657-1666.
6. Bhatia S, Goldberg EP, Enns JB. Examination of contact lens surfaces by atomic force microscope (AFM). CLAO J 1997;23:264-269.
7. Baguet J, Sommer F, Duc TM. Imaging surfaces of hydrophilic contact lenses with the atomic force microscope. Biomaterials 1993;14:279-284.
8. Baguet J, Sommer F, Claudon-Eyl V, Duc TM. Characterization of lacrymal component accumulation on worn soft contact lens surfaces by atomic force microscopy. Biomaterials 1995;16:3-9.
9. Maissa C, Franklin V, Guillon M, Tighe B. Influence of contact lens material surface characteristics and replacement frequency on protein and lipid deposition. Optom Vis Sci 1998;75:697-705.
10. Soltys-Robitaille CE, Ammon DM Jr, Valint PL Jr, Grobe GL III. The relationship between contact lens surface charge and in-vitro protein deposition levels. Biomaterials 2001;22:3257-3260.
11. Nason RJ, Boshnick EL, Cannon WM, Dubow BW, Freeman MI, Kame RT, Lanier JC, Lopanik RW, Quinn TG, Rigel LE. Multisite comparison of contact lens modalities. Daily disposable wear vs. conventional daily wear in successful contact lens wearers. J Am Opt Assoc 1994;65:774-780.
12. Rabke CE, Valint PL, Ammon DM. Ophthalmic applications of atomic force microscopy. ICLC 1995;22:32-41.
13. Grobe GL III, Valint PL Jr, Ammon DM Jr. Surface chemical structure for soft contact lenses as a function of polymer processing. J Biomed Mater Res 1996;32:45-54.
14. Gonzalez-Meijome JM, Lopez-Alemany A, Almeida JB, Parafita MA, Refojo MF. Microscopic observation of unworn siloxane-hydrogel soft contact lenses by atomic force microscopy. J Biomed Mater Res B Appl Biomater 2006;76:412-418.
15. Gonzalez-Meijome JM, Lopez-Alemany A, Almeida JB, Parafita MA, Refojo MF. Microscopic observations of superficial ultrastructure of unworn siloxane-hydrogel contact lenses by cryo-scanning electron microscopy. J Biomed Mater Res B Appl Biomater 2006;76:419-423.
16. Jones L, Senchyma M, Glasier MA, Schickler J, Forbes I, Louie D, May C. Lysozyme and lipid deposition on silicone hydrogel contact lens materials. Eye Contact Lens 2003;29:S75-S79.
17. Sariri PR, Toosi AEK. Lecithin treatment to prevent protein adsorption onto contact lenses. Russina J Org Chem 2003;39:471-473.
18. Santos L, Rodrigues D, Lira M, Real Oliveira MECD, Oliveira R, Yebra-Pimentel E, Azeredo J. The influence of surface treatment on hydrophobicity, protein adsorption and microbial colonisation of silicone hydrogel contact lenses. Contact Lens Ant Eye 2007;30:183-188.
19. Vermeltfoort PB, van der Mei HC, Busscher HJ, Hooymans JM, Bruinsma GM. Physicochemical factors influencing bacterial transfer from contact lenses to surfaces with different roughness and wettability. J Biomed Mater Res B Appl Biomater 2004;71:336-342.
20. Meisler DM, Keller WB. Contact lens type, material, and deposits and giant papillary conjunctivitis. CLAO J 1995;21:77-80.
21. Goldberg EP, Bhatia S, Enns JB. Hydrogel contact lens-corneal interactions: A new mechanism for deposit formation and corneal injury. CLAO J 1997;23:243-248.
22. Brennan NA. Deposits and symptomatology with soft contact lens wear. Int Contact Lens Clin 2000;27:75-100.