Eye lens extraction in rat fetuses in utero
[摘要] Thetechniqueoflensextractioninratfetuses(12–15days)inuteroisdescribedwithreferencestotheliteratureonthistechnique,itsdifficultiesanddrawbacks.Ithasnotbeenpossibletoobservethesequelaeoftheextractionafteraperiodofmorethan9dayspostoperation.Atotalof24operatedeyeshavebeeninvestigatedmicroscopically.Aftersuccessfuloperationsthedevelopmentoftheeyeanditsaccessoryorganscontinuesalmostnormally.Thedorsalmarginoftheirisshowsproliferationsandsometimestheepitheliallayersseparateandavesiclelikeformationcanbeseen,butnofurtherindicationsofWolffianregenerationhavebeenobserved.Afterincompleteextractiontheremaininglensepitheliumformslentoids.Thenervousretinamaybepartlyorcompletelyextrudedthroughthecornealwound.Inthelattercase,onlyafoldedcystofpigmentedepitheliumremains.Itissurroundedbyaprimordiumofscleraandchorioid.Itdoesnotshowneoformationofanervousretina.
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[效力级别] [学科分类] 生物科学(综合)
[关键词] [时效性]