State and explain organogenesis of eye in chick embryo?

Question: State and explain organogenesis of eye in chick embryo?

Organogenesis of the eye in a chick embryo is a complex process that begins early in development. Around 33 hours after fertilization, the embryo exhibits the first signs of eye formation with the appearance of eye vesicles as lateral projections of the diencephalon. These vesicles make contact with the ectoderm, the outermost layer of cells, to form the optic cup and the lens. The optic cup will give rise to the retina, while the lens forms from the ectoderm. As the embryo develops, further differentiation occurs, with the optic cup eventually forming two layers: the inner layer becomes the neural retina, and the outer layer forms the retinal pigment epithelium. By 72 hours, the eye vesicles have differentiated significantly, and the basic structure of the eye is established, including the formation of the optic cup and the beginning of the lens placode[3]. This intricate process is crucial for the proper development of the visual system in the chick and is reflective of the eye development in vertebrates generally. Organogenesis in the chick embryo has been a model for studying developmental processes due to its accessibility and the ease with which it can be observed and manipulated.

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