简介：据我国卫健委数据显示，2022年中国儿童青少年总体近视率为53.6%，其中6岁儿童为14.5%，小学生为36%，初中生为71.6%，高中生为81%。青少年近视呈上升趋势，近视年龄低龄化，需要加强近视防控。

简介：为贯彻落实《中共中央国务院关于加强青少年体育增强青少年体质的意见》（中发[2007]7号）精神，加强保护学生视力的工作，特制定本工作方案。

简介：AIM:Toinvestigatethepossiblerelationshipbetweentheinfluencingfactorsoccurringbeforeandduringbirthinfull-terminfantsandtheoutcomeofretinopathy.·METHODS:Totally816full-terminfantsadmittedintheneonateintensiveunitofBoaiHospitalofZhongshanbetween1May,2008and30June,2011wereincludedinthestudy.Fundusexaminationwasperformedandevaluatedindividuallyonthemattheageof48hoursafterdelivery,2weeksand1month.Somepossibleriskfactorshappeningprenatallyorduringdeliverysuchaspregnantrelatedhypertension,placentaprevia,placentalabruptionetc,aswellassomeneonatalriskfactorssuchasneonatalasphyxia,hypoxic-ischemicencephalopathy(HIE),lowbirthweightetc,wererecordedandevacuated.Thentheeffectoftheriskfactorsoffull-terminfantsonretinopathywasstudied.·RESULTS:Theincidenceofretinalhemorrhageoffull-terminfantswithprenatalpregnantrelatedhypertension(PRH)ofthemother(43.6%)wassignificantlyhigherthanthatoffull-terminfantswithout(8.0%).(P<0.001).Theincidenceofretinalhemorrhageoffull-terminfantswithneonatalasphyxiaand/orhypoxic-ischemicencephalopathy(HIE)(29.3%)wassignificantlyhigherthanthatofthosewithout(15.7%),butcorrelationwasnotfoundbetweentheseverityofretinahemorrhageandthedegreeofhypoxicdisease.Apalecolorofopticdiscwasassociatedwithalowbirthweightoffull-terminfant.Full-terminfantswithbirthweighlessthan2500ghadasignificanthigherincidenceofretinopathythanthosewithbirthweightequalormorethan2500g(P<0.001).·CONCLUSION:Themaininfluencingfactorswhichleadtoretinopathyofhighriskfull-terminfantsareprenatalfactorssuchasPRH,andsomeneonatalriskfactorssuchasasphyxia,hypoxic-ischemicencephalopathy,andlowbirthweight.

简介：<正>我科自1994年3月开展鼻内窥镜下鼻内泪囊鼻腔造孔术,共治疗18例20侧。近期有效率为90%(18侧)。此18侧随访6～24个月,治愈15侧(75%),好转2侧(10%),无效1侧,远期总有效率为85%(17/20侧)。20侧手术中有4侧一期手术失败,下面介绍手术失败的原因及预防方法。1.鼻腔结构异常。鼻中隔高位偏曲、中鼻甲前端肥大、鼻息肉及外伤引起的鼻部畸形等,应在