Comparison of the results of the eye biometrics using different instruments

Written by Kulikov A.N., Kokareva E.V., Kotova N.A.

  UDK: 617.7-073:681.784 | Pages: 53–55 | Full text PDF | Open PDF 

Objective. Comparison of the measurements results of the eye parameters were conducted on the following instruments Lenstar LS900, IOLMaster, Pentacam HR and OPD-Scan II. Methods. The study involved 50 patients (54 eyes). For the purpose of calculating the optical power of the intraocular lens, biometry was performed on these instruments with statistical processing of the obtained data. Results. When measuring the anteroposterior axis and the depth of the anterior chamber of the eye, no clinically and statistically significant difference was obtained by all instruments. A statistically significant difference was found when comparing keratometry on the Lenstar LS900 biometer and Pentacam HR and OPDScan II keratotopographs. Conclusios. Between the main parameters of the eye, determined with the Lenstar LS900 and IOLMaster, there is a high dependence and repeatability of the results. The depth of the anterior chamber of the eye, measured with instruments of different types, in formulas for calculating the optical strength of intraocular lenses (Haigis, Holladay, Barret, Olsen) can be used to obtain new calculation algorithms. The keratometric data on Pentacam HR in the pupillary and 3 mm pupil zones and on OPD-Scan II in combination with the results obtained with the Lenstar LS900 and IOLMaster, because of significant differences, may be useful for identifying more accurate variants of intraocular lenses.

Links to authors:

A.N. Kulikov, E.V. Kokareva, N.A. Kotova
Military and Medical Academy named after S.M. Kirov (5 Klinicheskaya St. St. Petersburg 194044 Russian Federation)

1. Balashevich L.I., Kachanov A.B. Clinical corneotopography and aberrometry. М., 2008. 167 p.
2. Stebnev S.D., Skladchikova N.I. Efficiency of the use of the optical biometer ‘LENSTAR LS900, Haag-Streit’ in achieving ‘refraction of the target’ with the implantation of intraocular lenses ‘premium-class’, Alcon // Modern Technologies in Ophthalmology. 2014. No. 3. P. 89.
3. Drexler W., Findl O., Menapace R. [et al.]. Partial coherence interferometry: A novel approach to biometry in cataract surgery // Am. J. Ophthalmol. 1998. Vol. 126. P. 524–534.
4. Gale R.P., Saldana M., Johnston R.L. [et al.]. Benchmark standards for refractive outcomes after NHS cataract surgery // Eye. 2009. Vol. 23. P. 149–152.
5. Goebels S, Pattmöller M, Eppig T. [et al.]. Comparison of 3 biometry devices in cataract patients // J. Cataract Refract. Surg. 2015. Vol. 41, No. 11. P. 2387–2393.
6. Güler E., Kulak A.E., Totan Y. [et al.]. Comparison of a new optical biometry with an optical low-coherence reflectometry for ocular biometry // Cont. Lens Anterior Eye. 2016. URL: http://sci-hub. bz/10.1016/j.clae.2016.06.001 (дата обращения: 30.11.2016).
7. Li J., Chen H., Savini G. [et al.]. Measurement agreement between a new biometer based on partial coherence interferometry and a validated biometer based on optical low-coherence reflectometry // J. Cataract Refract. Surg. 2016. Vol. 42. P. 68–75.
8. Olsen T. On the calculation of power from curvature of the cornea // Br. J. Ophthalmol. 1986 . Vol. 70. P. 152–154.
9. Olsen T. Improved accuracy of intraocular lens power calculation with the Zeiss IOLMaster // Acta Ophthalmol. Scand. 2007. Vol. 85. P. 84–87.
10. Shin M.C., Chung S.Y., Hwang H.S. [et al.]. Comparison of two optical biometres // Optometry and Vision Science. 2016. Vol. 93, No. 3. P. 259–265.


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