Free volume study on calcification process in an intraocular lens after cataract surgery

Journal of Biomedical Materials Research - Part B Applied Biomaterials

Volumn 75, Issue 1, 2005, Pages 221-227

  Ramani, R ^a   Parihar, J K S ^b   Ranganathaiah, C ^c   Awasthi, P ^a   Alam, S ^a   Mathur, G N ^a  

^a DEFENCE MATERIALS AND STORES RESEARCH AND DEVELOPMENT ESTABLISHMENT   (India)

^b Classified Specialist   (India)

^c UNIVERSITY OF MYSORE   (India)

Author keywords

Calcification; Diffusion; Free volume; Intraocular lens; Positron lifetime

Indexed keywords

CALCIFICATION (BIOCHEMISTRY); CALCIUM; ENERGY DISPERSIVE SPECTROSCOPY; GLASS TRANSITION; POSITIVE IONS; SURGERY;

FREE VOLUME; INTRAOCULAR LENS; POSITRON LIFETIME;

LENSES;

CALCIUM; CATION; PLASTICIZER;

ARTICLE; CALCIFICATION; CATARACT EXTRACTION; DEVICE REMOVAL; ENERGY DISPERSIVE X RAY SPECTROSCOPY; EQUIPMENT DESIGN; FREE VOLUME; GLASS TRANSITION TEMPERATURE; INFRARED SPECTROSCOPY; LENS IMPLANT; PHACOEMULSIFICATION; POSITRON LIFETIME SPECTROSCOPY; POSTOPERATIVE PERIOD; ROENTGEN SPECTROSCOPY; SPECTROSCOPY; ULTRAVIOLET RADIATION; VOLUMETRY;

CALCINOSIS; CALCIUM; CATARACT EXTRACTION; GLASS; HUMANS; LENSES, INTRAOCULAR; SPECTROSCOPY, FOURIER TRANSFORM INFRARED; SPECTRUM ANALYSIS; TEMPERATURE;

EID: 25844437419     PISSN: 00219304     EISSN: None     Source Type: Journal    
DOI: 10.1002/jbm.b.30303     Document Type: Article

References (32)

1. Learning DV. Practice styles and preferences of ASCRS members-1995 survey. J Cataract Refract Surg 1996;22:931.
2. Chehade M, Elder MJ. Intraocular lens materials and styles: A review. Aust N Z J Ophthalmol 1997;25:255.
3. Schaumberg DA, Dana MR, Christen WG, Glynn RJ. A systemic overview of the incidence of posterior capsule opacification. Ophthalmology 1998;105:1213.
4. Pandey SK, Werner L, Apple DJ, Kaskaloglu M. Hydrophilic acrylic intraocular lens optic and haptics opacification in a diabetic patient-Bilateral case report and clinicopathological correlation. Ophthalmology 2002;109:2042.
5. Lloyd AW, Faragher RGA, Denyer SP. Ocular biomaterials and implants. Biomaterials 2001;22:769.
6. McKibbin M, Seemongal-Dass RR, Atkinson PL. Transient fogging of acrylic (Acrysof) intraocular lenses. Eye 1999;13:672.
7. Kucuksumer Y, Bayraktar S, Sahin S, Yilmaz OF. Posterior capsule opacification three years after implantation of an Acrysof and a Memorylens in fellow eyes. J Cataract Refract Surg 2000;26:1176.
8. Tognetto D, Toto L, Ballone E, Ravalico G. Biocompatibility of hydrophilic intraocular lenses. J Cataract Refract Surg 2002;28:644.
9. Frohn A, Burkhard Dick H, Augustin AJ, Grus FH. Late opacification of the foldable hydrophilic acrylic lens SC60B-OUV. Ophthalmology 2001;108:1999.
10. Bucher PJM, Buchi ER, Daicker BC. Dystrophic calcification of an implanted hydroxyethylmethacrylate intraocular lens. Arch Ophthalmol 1995;113:1431.
11. Apple DJ, Werner L, Escobar-Gomez M, Pandey SK. Deposits on the optical surfaces of Hydroview intraocular lenses. J Cataract Refract Surg 2000;26:796.
12. Fernando GT, Crayford BB. Visually significant calcification of hydrogel intraocular lenses necessitating explantation. Clin Exp Ophthalmol 2000;28:280.
13. Werner L, Apple DJ, Escobar-Gomez M, Ohrstrom A, Crayford BB, Bianchi R, Pandey SK. Postoperative deposition of calcium on the surfaces of a hydrogel intraocular lens. Ophthalmology 2000;107:2179.
14. Pavlovic S, Magdowski G, Brueckel B, Pavlovic S. Ultrastructural analysis of opacities seen in a hydrophilic acrylic intraocular lens. Eye 2001;15:657.
15. Yu AKF, Kwan KYW, Chan DHY, Fong DYT. Clinical features of forty six eyes with calcified hydrogel intraocular lenses. J Cataract Refract Surg 2001;27:1596.
16. Werner L, Apple DJ, Kaskaloglu M, Pandey SK. Dense opacification of the optical component of a hydrophilic acrylic intraocular lens-A clinico pathological analysis of nine explanted lenses. J Cataract Refract Surg 2001;27:1485.
17. Yu AKF, Shek TWH. Hydroxyapatite formation on implanted hydrogel intraocular lenses. Arch Ophthalmol 2001;119:611.
18. Dorey MW, Brownstein S, Hill VE, Mathew B, Botton G, Kertes PJ, El-Defrawy S. Proposed pathogenesis for the delayed postoperative opacification of the hydroview hydrogel intraocular lens. Am J Ophthalmol 2003;135:591.
19. Brandt W, Dupasquier A, editors. Positron solid state physics. Amsterdam: North Holland; 1983.
20. Ramani R, Ranganathaiah C. Free volume microprobe study of iodine diffusion in polymers. Polym Int 2001;50:237.
21. Thimmegowda MC, Sathyanarayana PM, Shariff G, Ashalatha MB, Ramani R, Ranganathaiah C. A free volume microprobe study of water sorption in a contact lens polymer. J Biomater Sci, Polym Edn 2002;13:1295.
22. Brandt W, Berko S, Walker WW. Positronium decay in molecular substances. Phys Rev B 1960;120:1289.
23. Jean YC. Positron annihilation spectroscopy for chemical analysis: A novel probe for microstructural analysis of polymers. Microchem J 1990;42:72.
24. Kirkegaard P, Pedersen NJ, Eldrup M. M-2740, Riso National Lab reports, Denmark; 1989.
25. Buchen SY, Cunanan CM, Gwon A, Weinschenk JI III, Gruber L, Knight PM. Assessing intraocular lens calcification in an animal model. J Cataract Refract Surg 2001;27:1473.
26. Vyavahare N, Ogle M, Schoen FJ, Levy RJ. Elastin calcification and its prevention with aluminum chloride pretreatment. Am J Pathol 1999;155:973.
27. ++ induced protein loss, vimentin cleavage and opacification. Invest Ophthalmol Vis Sci 2000;41:2255.
28. Fujita H. Organic vapours above the glass transition temperature. In: Crank J, Park GS, editors. Diffusion in polymers. New York: Academic Press; 1968.
29. Nakanishi H, Wang SJ, Jean YC. Microscopic surface tension studied by position annihilation. In: Sharma SC, editor. Positron annihilation in fluids. Singapore: World Scientific; 1988.
30. Tao SJ. Positronium annihilation in molecular substances. J Chem Phys 1972;56:5499.
31. Eldrup M, Lightbody D, Sherwood JN. The temperature dependence of position lifetimes in solid pivalic acid. Chem Phys 1981;63:51.
32. Zaldivar D, Peniche C, Bulay A, Roman JS. Free radical copolymerization of furfuryl acrylate and 2-Hydroxy ethyl methacrylate. J Polym Sci Part A: Polym Chem 1993;31: 625.