CornealdiseaseCornealdiseaseGeneral•Functions1
corneaandscleramakeuptheexternalwall2
importantrefractionsubstance:+43D，3/4ofthetotalrefractivepower3
nobloodvesselImmuneprivilegeTransparentcorneaEpitheliumBasalcellsBowmanmembraneStromaDescemetmembraneEndotheliumKeratitis•Etiology1
infectivity:bacteria、fungi、virus、acanthaamoeba2
endogenetic:3
spread:PathobiologyPathobiology•causativeagentinfiltrationtransparentcornealulcerdescemetocelecornealperforationnebulamaculacornealscarcornealfistulaleucomaAdhesivenesskeratoleukomaglaucomacornealstaphylomapanophthalmitisatrophiabulbi（眼球萎缩）clinicalmanifestation•Symptom:ophthalmalgia、photophobia、tearing、spasmofeyelid、secretion、sightdescent•Sign:ciliarycongestion、cornealinfiltration、cornealulcerDiagnose•Symptom+Sign•laboratoryexaminationTherapy•Removeetio
