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1、·1286·ChineseMedicalJournal2001;114(12):1286-1289ComparisonoftheeffectsoftwotypesofintraocularlensCHENWeirong陈伟蓉,LIUYizhi刘奕志,WANGNingli王宁利,GUOYan郭彦andHEMingguang何明光Keywords:intraocularlens·anteriorchamber·transscleralfixation·ultrasoundbiomicroscopyObjectiveToevaluatetheeff
2、ectivenessandsafetyofimplantationofflexibleopen-loopanteriorchamberintraocularlens(FOAC-IOLs)andscleralfixatedposteriorchamberintraocularlens(PC-IOLs).MethodsSixty-eighteyesof68patientswithimplantedintraocularlensesintheabsenceofposteriorcapsularsupportwerereviewedretrospec
3、tively.Accordingtothetypeofintraocularlens,patientswereclassifiedintotwogroups.IngroupⅠ(30eyes),FOAC-IOLswasimplantedprimarilyorsecondarily.IngroupⅡ(38eyes),scleralfixatedPC-IOLswasimplantedprimarilyorsecondarily.Bygonioscopyandultrasoundbiomicroscopy(UBM),accuratepositions
4、ofIOLs'hapticsandtherelationshipbetweenthehapticsandsurroundingtissueswereobservedpostoperativelyandusedtoevaluatetheinfluenceofthetwotypesofIOLsonocularanteriorsegments.Follow-upwas6to20months.ResultsBestcorrectedvisualacuityof20/40orbetterwasachievedin27eyes(90.0%)ingroup
5、Ⅰ,and35eyes(92.1%)ingroupⅡandthedifferencewasnotstatisticallysignificant(P>0.05).IngroupⅠ,23eyes(76.7%)hadatotalof40complications,while13eyes(34.2%)had19complicationsingroupⅡ(P<0.05).GonioscopyandultrasoundbiomicroscopyshowedthatingroupⅠ,allhapticsofIOLscontactedwiththeiris
6、completelyandcompressedtheiristodifferentdegrees,sometimescausingtheanteriorchamberanglestowiden.AnteriorsynechiaoftheiriswascausedbythehapticsofFOAC-IOLsin12eyes.Amongthe60IOLshaptics,39footplatesofthehapticswereproperlyfixedattheciliaryband;21haptics(12eyes)penetratedthro
7、ughtheirisintothestromaoftheciliarybodywithaccompanyingrecurrentuveitis.IngroupⅡ,amongthe76IOLshaptics,52wereadequatelyfixedintheciliarysulcusregions,and8(8eyes)wereplacedbelowtheiris,causinggoniosynechia.Thistypeofangleclosurewaslocalized,withanopenangleoneachsideofthehapt
8、ics.Theremaining16hapticswerefixedontotheciliarycrown.ConclusionsThecurrentsutured
