optic vesicle


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Related to optic vesicle: Optic stalk, lens placode

optic vesicle

n.
Either of the paired evaginations of the embryonic forebrain from which the optic nerve and retina develop.
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References in periodicals archive ?
(1) The lens arises from the surface ectoderm and formation starts with the contact of optic vesicle at about 3 weeks of gestation.
For reasons that are not entirely clear the congenital cystic eye develops as a result of partial or complete arrest in the invagination of the primary optic vesicle between the 2 mm and 7 mm stages of fetal development.
Within the neural epithelial-derived optic vesicle, animal studies have demonstrated that Pax6 acts together with additional transcription factors such as Pax2, Six6, Gsx2, Pax5, and Lhx2 to regulate invagination to form the bilayered cup that will become the retina, retinal pigmented epithelium, and iris pigmented epithelium [8, 10, 12, 46].