相干光生物测量法在儿童眼球测量中应用.pdfVIP

生垦塞旦里型鲞查兰Q塑堡!旦筻旦宴塞笋坦j；坐!￡堕!虫h啦坐型：塑!翌坚圣Q堕!型望!坠：兰 ·149· ·论著：临床研究· 相干光生物测量法在儿童眼球 测量中应用 亢晓丽乔珊丽李军 【摘要】目的探讨相干光生物测量法在儿童眼球生物测量中的重复性和准确性，评价该方法在儿 物测量仪(A超)和TopconKR一8800角膜曲率计分别测鼍小儿眼科门诊患者126例244只眼的眼球轴长 (Ax)、前房深度(ACD)和角膜曲率(K值)。其中男5l例，女75例，平均年龄(10．7±2．9)岁(3-16岁)。全部 患者排除眼部器质性病变，检查静态屈光。结果PCI和A超测量的Ax的变异系数(COV)分别为0．67％ 与曲率计测量的K值相比，差别为0．04D，无统计学意义，P0．05。结论PCI测量儿童眼球生物参数稳定 可靠，与A超的测量结果高度相关，可重复性高于A超。PCI测量的K值与曲率计测量结果无差异。PCI 可以替代A超和曲率计，有望成为儿童眼球生物测量的常规方法。 【关键词】相干光生物测量法；超声生物测量法；眼球轴长；前房深度；角膜曲率 The coherence Ontheocular ofchildren appHcafionofpartial interferometrybiometry KANG Shah一丘，LI of Aier Xiao-li，QZAO Jun．DepamnentOptometry，ShanghaiEyeHospital，Shanghai 200336．Ch／rm． Toevaluatethe and coherence [AbstraetlObjective repeatabilityaccuracyofpartial interferometry ontheocular ofchildren itwithultrasonic and biometry bycomparing biometryauto·keratomeaT．Methods Zeiss ultrasonicA-scanand KR-8800 areused IOL-Master3．02．QMC5．03 Topcon auto-keratometrysequen— ina ofchildrenwhichcontains126 cases(244 fially group eyes)withaverageage(10．7±2．9)years(3-16 Thecoefficientofvariation(COV)ofPCIandA-scanOnthemeastⅡementofAxweIe0．67％ years)．Results and Ax values with with andACD were PCI(Po．05)than 0．72％．respectively．11le significantlylarger thedifferences and is correlated A-SCan，1jI，ith of0．22t：O．22mm significantly 0．】O±0．20mm，respectively．PCI wit}IA．scanonthemeasurementofAx(r--0．98)andACD(r=町．64)．ThekeratometrieofPCIandauo readings ar