LIGHT AND ELECTRON-MICROSCOPIC ANALYSIS OF INTRAOCULAR 2-PERCENT HYDROXYPROPYLMETHYLCELLULOSE

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dc.contributor.authorKwitko, Sérgio [UNIFESP]
dc.contributor.authorBelfort, Rubens Junior [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2018-06-15T17:53:08Z
dc.date.available2018-06-15T17:53:08Z
dc.date.issued1991-07-01
dc.description.abstractTwenty samples of 2% hydroxypropylmethylcellulose for intraocular surgery, obtained from two Brazilian laboratories, were studied to determine the presence and type of impurities in the solutions. These were compared with ten samples of balanced salt solution (control group). Using light and scanning electron microscopy, five types of particles were identified: cellulose fibers, vegetable flakes, crystals, glass fragments, and other impurities. At least one of these contaminants was present in each sample of 2% hydroxypropylmethylcellulose. The vegetable matter was also seen in a sample of the raw material from which the clinical material had been prepared. Control solutions (i.e., balanced salt solution) were free of vegetable matter and of crystals, but glass fragments and other impurities were present. The average number of foreign particles in the solutions of hydroxypropylmethylcellulose (91.2 and 96.7 particles per milliliter for each of the two groups) was statistically greater than in the balanced salt solutions (13.7 particles per milliliter).en
dc.description.affiliationESCOLA PAULISTA MED SCH,DEPT OPHTHALMOL,BR-04023 SAO PAULO,BRAZIL
dc.description.affiliationUnifespESCOLA PAULISTA MED SCH,DEPT OPHTHALMOL,BR-04023 SAO PAULO,BRAZIL
dc.description.sourceWeb of Science
dc.format.extent478-484
dc.identifierhttp://dx.doi.org/10.1016/S0886-3350(13)80855-3
dc.identifier.citationJournal Of Cataract And Refractive Surgery. Fairfax: Amer Soc Cataract Refractive Surgery, v. 17, n. 4, p. 478-484, 1991.
dc.identifier.doi10.1016/S0886-3350(13)80855-3
dc.identifier.issn0886-3350
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/44229
dc.identifier.wosWOS:A1991FW16900010
dc.language.isoeng
dc.publisherAmer Soc Cataract Refractive Surgery
dc.relation.ispartofJournal Of Cataract And Refractive Surgery
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject2-PERCENT HYDROXYPROPYLMETHYLCELLULOSEen
dc.subjectENDOTHELIAL PROTECTIONen
dc.subjectVISCOELASTIC SUBSTANCEen
dc.titleLIGHT AND ELECTRON-MICROSCOPIC ANALYSIS OF INTRAOCULAR 2-PERCENT HYDROXYPROPYLMETHYLCELLULOSEen
dc.typeinfo:eu-repo/semantics/article
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