Article Text

other Versions

PDF
Comparison of a-scan and magnetic resonance imaging for axial length measurement in silicone oil filled eyes
  1. Goran Bencic (goranbencic{at}hotmail.com),
  2. Zoran Vatavuk (zvatavuk{at}hotmail.com),
  3. Miljenko Marotti,
  4. Valentina Lacmanovic Loncar,
  5. Ivanka Petric,
  6. Biljana Andrijevic-Derk,
  7. Jelena Skunca,
  8. Zdravko Mandic
  1. University Department of Ophthalmology, University Hospital, Croatia
  2. University Department of Ophthalmology, University Hospital, Croatia
  3. University Department of Radiology, University Hospital, Croatia
  4. University Department of Ophthalmology, University Hospital, Croatia
  5. University Department of Ophthalmology, University Hospital, Croatia
  6. University Department of Ophthalmology, University Hospital, Croatia
  7. University Department of Ophthalmology, University Hospital, Croatia
  8. University Department of Ophthalmology, University Hospital, Croatia

    Abstract

    Background/aims: To compare the accuracy of A-scan biometry and magnetic resonance imaging for measuring axial length in silicone oil filled eyes.

    Methods: Prospective randomized study included 70 patients. Biometry was performed using magnetic resonance imaging in 33 patients (MRI group) and A-scan echography in 37 patients (A-scan group). The difference between predicted and final refraction was measured and statistically evaluated.

    Results: In patients with axial length ≥26 mm, mean deviation of the final from predicted refraction was −1.23 ± 0.67 D in the MRI group, and −2.3 ± 2.02 D in the A-scan group. The difference between those two groups was statistically significant (p=0.02). In patients with axial length <26 mm, mean deviation of the final from predicted refraction was −0.12 ± 1.29 D in the MRI group and −0.33 ± 1.39 D in the A-scan group. There was no statistical significance between those two groups (p=0.629).

    Conclusion: For highly myopic patients MRI biometry presented more accurate measurement of axial length in silicone oil filled eyes. A-scan biometry and MRI biometry were comparably accurate in measuring axial length in patients with axial length <26 mm.

    Statistics from Altmetric.com

    Request permissions

    If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.