Nerve and Blood Supply of Vitreous

The vitreous, also known as the vitreous humor, is a clear gel-like substance that fills the space between the lens and the retina in the human eye. The vitreous is supplied with blood and nerve supply to perform its function in the eye.

Blood Supply

The vitreous is supplied with blood by the hyaloid artery and its branches. The hyaloid artery is a small vessel that runs through the vitreous and supplies blood to the retina, lens, and other parts of the eye. The hyaloid artery is a unique vessel because it begins as a branch of the ophthalmic artery and ends at the optic disc, without forming any anastomosis.

The hyaloid artery is responsible for supplying the majority of the blood to the vitreous during embryonic development. However, after birth, the hyaloid artery regresses and the vitreous is supplied by the vessels surrounding the eye, such as the choroidal vessels and the retinal vessels.

The blood vessels that supply the vitreous are important for maintaining the proper composition and concentration of the vitreous. They also help to remove waste products and other molecules from the vitreous, which is important for maintaining the health of the eye.

Nerve Supply

The vitreous does not have a direct nerve supply. The nerve supply to the vitreous comes from the surrounding structures such as the retina, the ciliary body and the choroid. The retina, which is the light-sensitive layer of the eye that converts light into electrical signals that are sent to the brain, is innervated by the optic nerve. The ciliary body, which produces aqueous humor and helps to control the shape of the lens, is innervated by the ciliary nerves. The choroid, which is the layer of blood vessels that lies between the retina and the sclera, is innervated by the choroid nerves.

These nerves help to regulate the functions of the vitreous, such as the production and removal of the vitreous, and also help to control the blood flow to the vitreous.

Conclusion

The vitreous is supplied with blood and nerve supply to perform its function in the eye. The blood supply to the vitreous comes from the hyaloid artery and its branches during embryonic development, and later from the surrounding vessels such as choroidal vessels and retinal vessels. The nerve supply to the vitreous comes from the surrounding structures such as the retina, ciliary body and choroid. These nerves help to regulate the functions of the vitreous and also help to control the blood flow to the vitreous. The proper blood and nerve supply is important for maintaining the health and proper functioning of the vitreous.

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