“…Cuppusamy et al, in a comparative study, investigated the measurements of RNFL and RGCL thickness in KCN patients[54]. They found comparable results of these two parameters between KCN and non-Clinically, the induced astigmatism error in KCN patients may act as an artifact while imaging acquisition by OCT. Langenbucher et al demonstrated that high degrees of astigmatism in more advanced cases of KCN might bring changes in peripapillary RNFL findings[57].…”