Abstract
During combined cataract extraction and intraocular lens insertion in eyes undergoing removal of silicone oil, we noted that oil became adherent to the implant. This adhesion persisted post-operatively. Although patients seemed not to be symptomatic as a result of this effect, the oil interferes with the fundal examination. Since heparin-coated intraocular lenses are more hydrophilic than unmodified lenses, oil should spread less well on these lenses and therefore be less adherent. This study was conducted to test this hypothesis. Heparin-surface-modified and unmodified polymethylmethacrylate (PMMA) lenses were immersed in 1000 centistoke neat silicone oil and in an emulsion of silicone oil taken from a patient. The lenses were washed with saline solution in an attempt to remove adherent oil. The lenses were photographed for examination and qualitative comparison. It was found that both neat and emulsified silicone oil was strongly adherent to both surface-modified and unmodified lenses, and could not easily be washed off. The heparin-coated lenses showed a tendency for adherence of emulsified oil. It is concluded that heparin coating of intraocular lenses does not prevent, though may reduce, oil adherence. We recommend that care be taken to avoid contact between oil and implant during combined oil removal and cataract extraction.
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Franks WA, Leaver PK . Removal of silicone oil: rewards and penalties. Eye 1991;5:333–7.
Borgioli M, Coster DJ, Fan RFT, Henderson J, Jacobi KW, Kirkby GR, Lai Y-K, Menezo JL, Montard M, Strobel J, Wollensak J . Effect of heparin surface modification of poly-methylmethacrylate intraocular lenses on signs of postoperative inflammation after extracapsular cataract extraction. Ophthalmology 1992;99:1248–55.
King RN, Andrade D, Ma SM, Gregonis DE, Brostrom LR . Interfacial tensions at acrylic hydrogel-water interfaces. J Colloid Interface Sci 1985;103:62–75.
Casswell AG, Gregor ZJ . Silicone oil removal. II. Operative and postoperative complications. Br J Ophthalmol 1987;71:898–902.
Federman JL, Schubert HD . Complications associated with the use of silicone oil in 150 eyes after retina-vitreous surgery. Ophthalmology 1988;95:870–6.
Kampik A, Hoing C, Heidenkummer H-P . Problems and timing in the removal of silicone oil. Retina 1992;12(Suppl):S11–6.
Pearson RV, McLeod D, Gregor ZJ . Removal of silicone oil following diabetic vitrectomy. Br J Ophthalmol 1993;77:204–7.
Moisseiev J, Bartov E, Cahane M, Blumenthal M, Treister G . Cataract extraction in eyes filled with silicone oil. Arch Ophthalmol 1992;110:1649–51.
Heidenkummer H-P, Kampik A, Thierfelder S . Experimental evaluation of in vitro stability of purified polydimethylsiloxanes (silicone oil) in viscosity ranges from 1000 to 5000 centistokes. Retina 1992;12(Suppl):S28–32.
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Batterbury, M., Wong, D., Williams, R. et al. The adherence of silicone oil to standard and heparin-coated PMMA intraocular lenses. Eye 8, 547–549 (1994). https://doi.org/10.1038/eye.1994.135
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DOI: https://doi.org/10.1038/eye.1994.135