Vitreous humour
Vitreous Humour
The Vitreous Humour is a clear, gel-like substance that fills the space between the lens and the retina of the eye. It makes up approximately two-thirds of the eye's volume, giving it a round shape. The vitreous humour is composed of water (99%), collagen fibres and hyaluronic acid. It also contains a network of collagen type II fibres that help maintain its structure.
Composition and Function[edit | edit source]
The vitreous humour is composed primarily of water, but also contains proteins, salts, sugars, and a network of collagen and hyaluronic acid. This composition allows the vitreous humour to maintain the eye's shape and keep the retina in place. It also helps to transmit light from the lens to the retina.
Clinical Significance[edit | edit source]
Changes in the vitreous humour can lead to a number of eye conditions. For example, vitreous detachment occurs when the vitreous humour shrinks and pulls away from the retina. This can lead to retinal detachment, a serious condition that can cause blindness if not treated promptly. Other conditions related to the vitreous humour include vitreous floaters, which are small specks or clouds that move in your field of vision, and vitreous hemorrhage, which is bleeding into the vitreous humour.
See Also[edit | edit source]
References[edit | edit source]
| Fibrous tunic (outer) |
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| Uvea/vascular tunic (middle) |
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| Retina (inner) |
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Contributors: Prab R. Tumpati, MD
