URL https://www.researchgate.net/publication/351703817/figure/fig1/AS:1026360399126529@1621714796279/Schema-of-2D-flatmount-images-from-3D-eyeballs-after-cutting-and-unfolding-Ideal.ppm
URL2 https://www.researchgate.net/figure/Schema-of-2D-flatmount-images-from-3D-eyeballs-after-cutting-and-unfolding-Ideal_fig1_351703817
