. 2018 Nov 15;2018:4342984. doi: 10.1155/2018/4342984
Copyright © 2018 Sylvain el-Khoury et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 8.
Refractive astigmatism.