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Clinical results of ciliary sulcus diameter assessment using anterior segment optical coherence tomography

Session Details

Session Title: Imaging I

Session Date/Time: Sunday 06/10/2013 | 14:30-16:00

Paper Time: 15:50

Venue: Elicium 1 (First Floor)

First Author: : D.Pokrovskiy RUSSIA

Co Author(s): :    B. Malyugin   A. Shpak   D. Uzunyan   P. Khadizhat     

Abstract Details


To study the effectiveness of new ciliary sulcus diameter measurement method with anterior segment optical coherence tomography (AS-OCT) in patients with high myopia


S. Fyodorov Eye Microsurgery Complex – Federal State Institution, Moscow, Russian Federation


Thirty two myopic eyes of 32 patients (mean age, 28 years; range, 19-50; mean spherical equivalent (SE), -13.12 D; range, -6.25 - -21.50) were included into this prospective comparative nonrandomized study. Initially in each case horizontal ciliary sulcus diameter was precisely measured with UBM by the skilled operator and taken as a control value. After that the same parameter was assessed twice by each of two other independent skilled operators using the new AS-OCT measurement algorithm. Finally we compared UBM measurement results with the AS-OCT and evaluated intra- and intersession coefficients of repeatability for the obtained AS-OCT data.


Mean ciliary sulcus diameter values with UBM and AS-OCT were 12.35±0.47 mm (range, 11.39 - 13.25) and 12.36±0.52 mm (range, 11.40 - 13.35) accordingly (P>0.05). Mean difference between UBM and AS-OCT data was 0.01±0.10 mm (range, -0.24 - 0.15). Intrasession coefficients of repeatability were 0.11 mm and 0.17 mm for the first and the second AS-OCT operator accordingly (P<0.05), while intersession repeatability reached 0.13 mm.


AS-OCT can be effectively used to measure ciliary sulcus diameter in patients with high myopia. The new ciliary sulcus diameter assessment method showed high level of precision and repeatability.

Financial Interest:


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