Eye of a fetus (40X) A chicken fetus. Image copyright: University of Oslo, CC BY-NC-ND 4.0. (Tissue stain: H+E). Magnify Labels Up (Special senses) This is a frontal section through a chicken fetus corresponding to about a 5 to 6 weeks old human fetus. Published June 10th 2022, updated February 6th 2023. Share on Facebook Tweet Send email Eye of a fetus