The Angle of Error is the difference of angle between the SIA and the TIA and represents the rotation of the Surgically Induced Astigmatism in reference to the Target Induced Astigmatism.
This function calculates the standardized Graph H detailed in the Journal of Refractive Surgery(1) from a single vector that contains the Angle of Error from the sample.
This graph has the limitation of not considering the Magnitude of Error (ME). For example, we can have a case with a ME of 1 D and an AE of 0º and another case of 0.1 D of ME and an AE of 50º, observing the graph we would give an excessive importance to the AE of 50º when its ME is not clinically relevant.
The Refractive Analysis is an Open Source Toolbox for Matlab developed by Rodríguez-Vallejo M for the Analysis of Vision Science Results. It is freely available for the students of our online course but you need the Matlab software to use it. Matlab software is not provided with the course.
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