Abstract
Purpose: :
To measure anterior chamber and posterior chamber diameters using ultrasound biomicroscopy (UBM) and to correlate these with other ocular measurements.
Methods: :
198 eyes of 114 patients were enrolled.Horizontal and vertical related sulcus-sulcus diameters were measured using a 35 MHz UBM unit. Other ocular measurements (eg, corneal curvature, refractive error, white-to-white [WTW] distance, anterior chamber depth [ACD]) were measured in all patients. We used linear regression analysis to evaluate the correlationbetween sulcus diameter and the other measurements.UBM was used to measure posterior chamber diameters, Orbscan II was used to measure White-white.
Results: :
White-to-white diameter: 100% horizontal diameter is bigger (p<0,001 [8,2 x 10-88] t-student).Angle-Angle diameter: 82% vertical diameter is bigger (p<0,001 [1,8 x 10- 11] t-student).Sulcus-sulcus diameter: 86% vertical diameter is bigger (p<0,001 [5,5 x 10 -12] t-student).
Conclusions: :
In our study the anterior chamber diameters in moderate axial myopia are bigger in the vertical diameter and do not correlate to white-white diameters.
Keywords: imaging methods (CT, FA, ICG, MRI, OCT, RTA, SLO, ultrasound) • anterior segment • ciliary body