斜视与屈光不正英文课件

《斜视与屈光不正英文课件》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、FujianProvincialHospitalWenjieWuMD.,PhD.Chapter15StrabismusAnyDeviationFromPerfectOcularAlignmentDefinitionsConjugatemovement:Movementoftheeyesinthesamedirectionatthesametime.Ductions:Monocularrotationswithnoconsiderationofthepositionoftheothereye.abductionI

2、nfraduction（Depression）Supraduction（Elevation）adductionFusion:Formationofoneimagefromthetwoimagesseensimultaneouslybythetwoeyes.MotorFusion:Adjustmentsmadebythebrainininnervationofextraocularmusclesinordertobringbotheyesintobifovealandtorsionalalignment.Sens

3、oryFusion:Integrationinthevisualsensoryareasofthebrainofimagesseenwiththetwoeyesintoonepicture.DefinitionsDefinitionsHeterophoria(phoria):Latentdeviationoftheeyesheldstraightbybinocularfusion.EsophoriaExophoriaHyperphoriaHpophoriaHeterotropia(Tropia)Strabism

4、us:Manifestdeviationoftheeyesthatcannotbecontrolledbybinocularfusion.EsotropiaExotropiaHypertropiaHypotropiaDefinitionsOrthophoria:Theabsenceofanytendencyofeithereyetodeviatewhenfusionissuspended.SeldomPrimarydeviation:Thedeviationmeasuredwiththenormaleyefix

5、ingandtheeyewiththepareticmuscledeviating.Prismdiopter:Aunitofangularmeasurementusedtocharacterizeoculardeviation.A1-diopterprismdeflectsarayoflighttowardthebaseoftheprismby1centimeterat1meter.Onedegreeofarcequalsapproximately1.7∆.DefinitionsSecondarydeviati

6、on:Thedeviationmeasuredwiththepareticeyefixingandthenormaleyedeviating.Torsion:RotationoftheeyeaboutitsanteroposterioraxisIntorsion(Incycloduction):Rotationofthe12O’clockmeridianoftheeyetowardthemidlineofthehead.Exorsion(Excycloduction):Rotationofthe12O’cloc

7、kmeridianoftheeyeawayfromthemidlineofthehead.Vergences(Disjunctivemovements):Movementofthetwoeyesinoppositedirection.Convergence:Theeyesturninward.Divergence:Theeyesturnoutward.DefinitionsPhysiologyIndividualMuscleFunctionMotorAspectsMotorAspectsFieldofActio

8、nPhysiologySynergistic&AntagonisticMusclesSynergisticmusclesarethosethatthosethathavethesamefieldofaction.Musclessynergisticforonefunctionmaybeantagonisticforanther.PhysiologyMotorAspectsYokeMus