Comparison of IOL master 700 and Lenstar for measurement of axial lengths

  Objective  To compare the differences, correlation, and consistency of results in measurement of axial lengths(AL) by Lenstar and IOL master 700.

  Methods  In this cross-sectional study, a total of 94 patients(94 eyes) between May and July 2018 from Fourth Affiliated Hospital of China Medical University and Ophthalmology Hospital of China Medical University were selected as research objects, and each patient performed Lenstar, IOL master 700 in sequence to measure the AL. The difference, correlation, and consistency of the two instruments were compared. They are random analysis of variance, Pearson correlative analysis, and Bland-Altman analysis respectively.

  Results  Lenstar and IOL master 700 had no statistically significance in the differences in AL measurement(P>0.05), but has a higher correlation and good consistency.

  Conclusion  The two methods have higher correlation and consistency in the AL measurements, and can be interchangeable.