The document summarizes the development of the eye from early embryogenesis through birth. It discusses the formation of the three primary germ layers - ectoderm, mesoderm, and endoderm - and how they give rise to the different tissues of the eye. Key stages of eye development are described from 3-5 months of gestation. The retina, lens, vitreous humor, choroid, sclera and other ocular structures develop from specific germ layers and their precursor tissues like the neural crest.

1. Rajvin Samuel Ponraj

11. 2 nd month stage of embryo

12. j 3 rd month stage of embryo

13. 4 th month stage of embryo

14. 5 th month to birth

27. Summary of various part of the eye ball. Part Derived from Lens Surface ectoderm Retina Neuroectoderm (optic cup) Vitreous Mesoderm Choroid Mesoderm (infiltrated by neural crest cells?) Ciliary body Mesoderm Ciliary muscles Mesenchymal cells covering the developing ciliary body (neural crest) Iris Mesoderm Muscles of the iris Neuroectoderm (from optic cup) Sclera Mesoderm (infiltrated by neural crest cells?) Cornea Surface epithelium by ectoderm, substantia propria and inner epithelium by neural crest Conjunctiva Surface ectoderm Blood vessels mesoderm Optic nerve Neuroectoderm. Its covering (pia, arachnoid and dura) are derived from mesoderm