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1、角膜疾病英文课件 本讲稿第一页，共八页GeneralFunctions 1.cornea and sclera make up the externalwall 2.important refraction substance:+43D，3/4 of the total refractive power 3.no blood vesselImmune privilegeTransparent cornea本讲稿第二页，共八页本讲稿第三页，共八页EpitheliumBasal cellsBowman membraneStromaDescemet membraneEndothelium本讲稿第四页
2、，共八页KeratitisEtiology 1.infectivity:bacteria、fungi、virus、acantha amoeba 2.endogenetic:3.spread:本讲稿第五页，共八页Pathobiology causative agent infiltration transparent corneal ulcer descemetocele corneal perforationnebulamacula corneal scar corneal fistulaleucoma Adhesiveness keratoleukomaglaucomacorneal sta
3、phylomapanophthalmitisatrophia bulbi（眼球萎缩）本讲稿第六页，共八页 clinical manifestationSymptom:ophthalmalgia、photophobia、tearing、spasm of eyelid、secretion、sight descentSign:ciliary congestion、corneal infiltration、corneal ulcer本讲稿第七页，共八页Bacterial keratitis Etiology corneal trauma pathogenic bacteria partly&systemic factors本讲稿第八页，共八页