Sample image fragments of the iridocorneal angle for which the known AOD, TIA and TISA methods give incorrect results. For these examples, the iridocorneal angle is determined properly with AOM and AOD methods. The results obtained with the AOM method are marked with a bold yellow line, and the results obtained for the AOD method are in red. The other coloured lines refer to the cornea and iris contours (yellow, magenta), and sides of the angle of the TIA method (sides are shown as a linear interpolation of the iris and cornea contours) are marked in white. The results obtained for the examples are: a) AOD = 12.9, AOM = 7.8, TIA = 29.7 b) AOD = 15.6, AOM = 9.2, TIA = 27.1 c) AOD = 22.6, AOM = 6.5, TIA = 29 d) AOD = 26, AOM = 16, TIA = 24.5 e) AOD = 21.6, AOM = 15.9, TIA = 22.6 f) AOD = 30.2, AOM = 15.2, TIA = 29.8 (AOM and AOD values are given in pixels, TIA values in degrees).