Differences between fellow eyes of acute and chronic primary angle closure (glaucoma): An ultrasound biomicroscopy quantitative study
Fig 1
The determination of the parameters on an ultrasound biomicroscopy image of the horizontal perpendicular full view scans at the nasal-temporal position centered over the pupil.
ACD = anterior chamber depth; ACW = anterior chamber width; LV = lens vault; PD = pupil diameter; SS = scleral spur.