摘要
目的探讨混合散光与视力减退的有关因素。方法对门诊验光患者207例(356只眼)的混合散光性质、类型进行一般统计,对混合散光者的裸眼视力和矫正视力做重点统计分析,探讨有关混合散光的诸多因素。结果绝大部分混合散光眼有明显的视力减退,平均裸眼视力为0.3(20/60),但这些患者均可获得较好的矫正视力,即0.6(20/30)。结论混合散光所致的视力减退可以获得满意的矫正效果。由于调节作用的影响,主觉验光、电脑验光、小瞳验光可产生三种错误:(1)有混合散光者未检出;(2)将混合散光误诊为单纯近视或复性近视散光;(3)将远视散光误诊为混合散光。
ObjectiveThisstudywasdesignedtoanalyzethecommoncauseofasthenopia,mixedastigmatism..MethodsThetypesandcharactersofmixedastigmatismin356eyes(207patients)wereanalyzedandtheirnakedandcorrectedvisualacuitieswereinvestigated.Someproblemsofmixedastig-matismwerediscussed.ResultsMostofthepatientshadevidentvisualdefects,theaveragenakedvisu-alacuitybeing0.3(20/60).However,althepatientshadbetercorrectedvisualacuitieswithanaverageof0.6(20/30).ConclusionsDuetothepresenceofaccommodationduringtheexamination,anincorectlensmaybeprescribed.Threemistakesmightoccur:(1)Amixedastigmatismisnotdetected,andasim-plemyopiclensisprescribed;(2)Aneyewithmixedastigmatismisdiagnosedassimpleorcompoundmy-opicastigmatism;(3)Ahyperopicastigmatismisdiagnosedasmixedastigmatism.Thevisualdefectscausedbymixedastigmatismcanbesatisfactorilycorrectedbyspectacles.
出处
《中华眼科杂志》
CAS
CSCD
北大核心
1996年第2期126-129,共4页
Chinese Journal of Ophthalmology