Optic stalk explained

Optic stalk
Latin:	pedunculus opticus
Carnegiestage:	14

The optic vesicles project toward the sides of the head, and the peripheral part of each expands to form a hollow bulb, while the proximal part remains narrow and constitutes the optic stalk.^{[1] [2]}

Closure of the choroidal fissure in the optic stalk occurs during the seventh week of development. The former optic stalk is then called the optic nerve.^[3] In short, the optic stalks are the structures that precede the optic nerves embryologically.

External links

• • Overview at vision.ca

Notes and References

1. Hosseini . Hadi S. . Beebe . David C. . Taber . Larry A. . Mechanical effects of the surface ectoderm on optic vesicle morphogenesis in the chick embryo . Journal of Biomechanics . 2014 . 47 . 16 . 3837–3846 . 10.1016/j.jbiomech.2014.10.018 . 25458577 . 4261019 .
2. Hosseini . Hadi S. . Taber . Larry A. . How mechanical forces shape the developing eye . Progress in Biophysics and Molecular Biology . 2018 . 137 . 16 . 25–36 . 10.1016/j.pbiomolbio.2018.01.004. 29432780 . 6085168 .
3. Kaplan Qbook - USMLE Step 1 - 5th edition - page 55