后极部小眼征的临床分析

Clincal analysis of posterior microphthalmos

目的探讨超声波检查对后极部小[征[球生物值测量的意义及其生物值之间的相关关系。方法通过对21例(42[)后极部小[征患者行1%阿托品散瞳、检影验光、角膜直径、[压、角膜曲率、[底照相及用[科A超行[球生物值(包括前房深度、晶状体厚度及玻璃体腔轴长)测量,再通过医学统计软件对[球生物值进行分析。结果21例(42[)患者屈光不正平均(+9.88±1.96)DS,42只[角膜直径、[压、角膜曲率及前房深度、晶状体厚度测量值均在正常范围。[轴长平均(19.96±0.98)mm,玻璃体腔轴长(13.12±0.91)mm,玻璃体腔轴长明显短小。屈光不正(RE)与前房深度(AC)相关系数(r=0.1925,p=0.2219,p>0.05),无统计学意义;RE与晶状体厚度(LT)相关系数(r=-0.4257,p=0.0049,p<0.05),有显著的统计学意义;RE与玻璃体腔轴长(AVL)相关系数(r=-0.3923,p=0.0102,p<0.05),有显著的统计学意义。结论后极部小[征因[球后极部玻璃体腔短小,造成[轴长较正常人短,常合并有高度远视,临床上可用超声波检查诊断之。若能及早得到视力的矫正,可能促进视力的正常发育。

Objective To investigate the significance of ultrasonographic examination in posterior microphthalmos （PM） and relationship between the biological values of the eyeball. Methods 21 cases （42 eyes） patients between the age of 5 and 27 years with posterior microphthalmos. Including mydriatic with 1% atropine, diameter of cornea, intraocular pressure, corneal curvature, fundus photograph and ultrasonographic examination （including anterior chamber, lens thickness, axial vitreous length）, then the data was analyzed using medical statistics soft. Results All patients had bilateral foreshortening of the posterior ocular segment （average, 13.12 ± 0.91 mm） with associated high hyperopia （average, ＋9.88 ± 1.96 diopters） and normal or slightly smaller than normal anterior segment dimensions. There was no significant difference between refractive error （RE） and anterior chamber （AC） （r=0.1925, p=0.2219, p〉0.05）, and significant difference between RE and lens thickness （LT） （r=-0.4257, p=0.0049, p〈0.05） were found. The difference of RE and axial vitreous length （AVL） was significant （r=-0.3923, p=0.0102, p〈0.05）. Conclusions Posterior microphthalmos is which the posterior sgement is reduced in size than noamal, this results in extreme axial hyperopia and visual impairment. And it could be diagnosed by ultrasongraphic examination, early appropriate managements maybe could improve visual fuction in such patients.