眼轴线后部眶容积增大及眼球内陷比值测定探究.docVIP

眼轴线后部眶容积增大及眼球内陷比值测定探究[摘要]目的：通过测量眼眶爆裂性骨折伴有眼眶扩大患者的后部眼眶容积、观察眼球内陷出现的时间及程度，研究后部眶容积扩大与眼球内陷的关系比值，为病情预测和眶内填充手术提供比较精确的参考数据。方法：将96例患者按发病时间分为早期病例组（60例、受伤时间1周以内）和晚期病例组（36例、受伤时间3个月以上），早期组除进行后部眼眶容积测量外，分别于1周、2周、3周测定眼球突出度（相差＞1mm为阳性），记录眼球内陷出现时间，用卡方检验进行统计学分析；晚期组测量后部眶容积增大值和眼球内陷量，对其相关性采用Pearson统计方法进行统计学分析，并得出回归方程及相关系数。结果：早期组60例患者中，5（8.33%）例患者在1周内出现眼球内陷，48（80%）例在2周内出现内陷， 3周时有53（88.33%）例呈现出内陷；2周时出现眼球内陷的例数与1周时有显著性差异（χ2＝62.484, P＜0.001），2周时出现眼球内陷例数与3周时无差异（χ2＝1.563, P＞0.05），1周时出现眼球内陷例数与3周时有显著差异（χ2＝76.885,P＜0.001），后部眶容积增大与眼球内陷的比值约为1.0，两者之间呈正相关（r=0.994,P＜0.001），即后部眶容积每增加1ml，产生1.0mm的眼球内陷。结论： 眼球内陷通常于伤后2周～3周出现，3个月时趋向稳定； 后部眶容积增大与眼球内陷产生比值为1.0，呈正相关；后部眶容积扩大与眼球内陷比值可预测发生眼球内陷的可能性和程度，为手术矫正眼球内陷提供可靠、精确的参考，具有十分重要的临床指导意义。 [关键词]眼轴线；眼眶容积；眼球内陷；比值 [中图分类号]R779.6[文献标识码]A[文章编号]1008-6455（2007）11-1520-03 The study of ratio measurement about degree of enophthalmos and traumatic expansion of orbital volume behind the axis of the globe BAI Ping,ZHANG Mei-hong,LIU Zhao-chuan,WANG Chong-shan,LIU Yan-dong,LIU Hong-liang，ZHANG Xin-qing (Department of Ophthalmology,Xingtai Ophthalmology Hospital,Xingtai 054001,Hebei，China) Abstract：ObjectiveIn order to provide early valuable information in diagnosis, prediction and treatment,the ratio between the expansion of orbital volume behind the axis of the globe and the degree ofthe enophthalmos was studied,and the time and degree of enophthalmos were observed.Methods96 cases were devied into early stage group (60 cases, within three weeks )and later period group(36 cases, over three weeks).In early stage group, the time and degree ofenophthalmos were observed. In later period group, the orbital volume behind the axis of the globe and degree ofthe enophthalmos were measured. Therelation between the changes of orbital volume behind the axis of the globe and the degree of the enophthalmos was assessed by using Pearson correlation coefficients. Results In early stage group, 5 of 60 cases appeared enophthalmos in first week(8.33%), 48(80%)cases appeared in second week,