a型外斜视的临床表现和手术治疗

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1、万方数据InternationalJournalofOphthalmology，V01．6，No．5，Oct．2006Tel：029—82245172EmaihIJO．2000@163．comwww．IJO．ca·Originalarticle·ClinicalcharacteristicsandsurgicalmanagementinA-patternexotropiaAbstract。AIM：T0surveythepathogenesis．clinicaIcharacterist：icsandsurgicaltreatmentforthecorrectiono

2、fA-patternex-otropia．。M日rHODS：ThecasehistoryandsurgicaleffeCtof62A—pat-ternexotropiain1825strabismuswerestudied．Thesuperiorobliquemusclesweakeningorthehorizontalmusclesproce-dureswereperformedinallpatientsaccordingtothedysfunc-tionofthesuperiorobliquemuscles，horizontaIdeviation，withor

3、withoutbinocularvision．Follow—uDaftersurgerywas6-18monthswithmeandurationof9months．。RESULTs：A-patternexotropiaaccountsfor3．4％ofalIstra-bismus．A-patternexotropiaaccountsfor21．2％ofA-Vsyn-drome．Aftersurgery，52oasesgotalignment，56oasesgainedA-signcorrectionand54casesrecoveredbinocularvisi

4、on．。CONCLUSION：A-patternexotropiajsacommonlypeinstrabismus，itsetiologyismainlyobliquemuscledysfunction．Differentsurgicalproceduresshouldbeselectedaccordingtooveractiondegreesofobliquemuscleandbinocularvisionfunction，whk；hcanacquirethesatisfiedresults．■。KEYWORDS：A-patternexotropia；clin

5、icalcharacteristits：surgicaltreatmentDongN，LiuLQ，LiPH．Clinicalcharacteristicsandsurgicalman—agementinA—patternexotropia．IntJOphthalmol(OuojiYankeZa—zh0，2006；6(5)：999-1001INTRoDUCTIoN，_T1heterms”A”pattemand”V”pattemdescribehorizontal上strabismusthatisverticallyincomitant．Itischaracter-i

6、zedbyasubstantialincreaseordecreaseinhorizontaldevia-tioninthemidlinepositioninupgazeascomparedtodowngaze．yonNoordentl]describedthatapproximately25％ofpatientswithstrabismushaveanassociated”A”or”V”paRern．Estimatesofthepercentageofpatientswithstrabis．musthathavean”A”or”V”pattemrangefrom

7、15％to25％byScoR【2]．Duke．Elder[3】emphasizedthatthecorrectionof”A”or”V”pattemwasimportantwhentreatmentofthechil—dren’shorizontalstrabismusin1973．Becausethecorrectionof”A”or”V”paaemwilltakeadvantageofgeeingbinocularDepartmentofOphthalmology，WestChinaHospital，SichuanUni—versityChengdu61004

8、l，Sic