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The lens placode invaginates, forming the lens vesicle. Concurrently, the optic vesicle becomes the optic cup.

The lens vesicle eventually becomes the lens and the two layers of the optic cup become the neural and pigmented layers of the retina.

               Species:  
                     Day Gestation:  
             Approx. Human Age:  
                                   View: 
            Optic Cup to Hyaloid Artery
                                  11b of 26