Official ESCRS | European Society of Cataract & Refractive Surgeons
Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance

10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits


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Comparison of biometric measurements and refractive results between applanation ultrasonography and three different interferometries

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Session Details

Session Title: Cataract Surgery Equipment/Instrumentation/Surgical Devices II

Session Date/Time: Monday 12/09/2016 | 17:00-18:30

Paper Time: 17:58

Venue: Hall C1

First Author: : R.Yi SOUTH KOREA

Co Author(s): :    J. Moon   J. Shin   G. Bae   S. Chung           

Abstract Details


To compare ocular biometry and refractive results measured using conventional applanation ultrasonography and 3 different optical interferometries, Lenstar LS900Ⓡ, AL-ScanⓇ and OA-2000Ⓡ.


Department of Ophthalmology and Visual Science, St. Paul’s Hospital, College of Medicine, The Catholic University of Korea2, Seoul, Korea


The biometries of 31 cataractous eyes were measured using ultrasonography, Lenstar LS900Ⓡ, AL-ScanⓇ or OA-2000Ⓡ. The axial length, anterior chamber depth and keratometry were measured. The SRK/T formula was used to calculate intraocular lens power. Two months after cataract surgery, the refractive outcome was determined and results from the 4 different biometry methods were compared.


Axial lengths were 23.39 ± 0.95 mm, 23.42 ± 0.98 mm, 23.43 ± 0.98 mm and 23.44 ± 0.98 mm measured using ultrasonography, Lenstar LS900Ⓡ, AL-ScanⓇ and OA-2000Ⓡ, respectively with no statistically significant differences observed (p = 0.996). The anterior chamber depth and keratometry were 3.14 ± 0.41 mm, 3.10 ± 0.38 mm and 3.13 ± 0.39 mm (p = 0.936) and 44.41 ± 1.52 D, 44.54 ± 1.57 D and 44.44 ± 1.52 D (p = 0.937) for Lenstar LS900Ⓡ, AL-ScanⓇand OA-2000Ⓡ respectively. There were no statistically significant differences between the 3 optical devices. The mean absolute error of the 4 different devices were not statistically significant (p = 0.722).


The ocular biometric measurements and prediction of postoperative refraction using ultrasonography, Lenstar LS900Ⓡ, AL-ScanⓇ or OA-2000Ⓡshowed no significant differences.

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