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Comparison of iol-master 700 and iol-master 500 biometers in ocular biological parameters of adolescents

International Journal of Ophthalmology(English edition) 2021年第7期14卷 1013-1017页

作者： Qiang Shi Guang-Yan Wang Yu-Hong Cheng Cheng Pei Department of Ophthalmology the First Affiliated Hospital of Medical CollegeXi’an Jiaotong UniversityXi’an 710061Shaanxi ProvinceChina

AIM:To compare the differences and consistency of iol-master 700 biometers applying swept optical coherence tomography with the conventional iol-master 500 applying partial coherence interference in terms of the ocular biological parameters in adolescents with ***:A total of 110 adolescents(110 eyes)with ametropia were collected,including 55 males and 55 females;age 10.69±2.81 *** biological measurements were taken by iol-master 700 and iol-master 500 respectively to obtain biological parameters including axial length(AL),mean corneal anterior surface keratometry(K_(m)),anterior chamber depth(ACD),and horizontal corneal diameter(WTW).Paired t-test was used to compare the differences between the two *** intra-group correlation coefficient(ICC)and the Bland-Altman analysis were used to evaluate the consistency of parameter measurements between the two instruments for the four biological ***:Statistical analysis showed that there was no significant difference in the K_(m)value measured by iol-master 700 and iol-master 500(t=-1.644,P=0.116).The average differences of the AL,ACD,and WTW distances between the two instruments are 0.028,0.101 and 0.064 mm respectively,and the differences are statistically significant(t=2.644,12.505,3.911,Piol-master 700 makes no difference with iol-master 500 in the measurement of K_(m).There are some differences in the values of AL,ACD,and ***,the two instruments show good consistency in these four biological *** measured values of K_(m)are interchangeable between the *** two types of biometrics can be used as mutual reference in consideration of that the differences in AL,ACD,and WTW measurements are not sufficient to produce clinically meaningful differen

关键词： myopia adolescents axial length iol-master 700 iol-master 500

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