 Unfortunately, although the Van Herick offers a quick and simple alternative to gonioscopy examinations, it also comes with limitations to its results.Principally, it has been deduced that measurements performed at the nasal limbus tend to overestimate the angle width.Moreover, although the technique relies on the subjective assessment of the observed structures, it has been found that the results are not easily replicated and there was a high level of variability depending on the perception of the examiner.