Vitreous membrane

Vitreous Membrane

The Vitreous Membrane also known as hyaloid membrane or vitreous cortex is a thin, transparent layer that encloses the vitreous body in the eye. It is a part of the visual system and plays a crucial role in maintaining the shape and structure of the eye.

Etymology

The term "vitreous" is derived from the Latin word "vitreus", which means "glassy". This is in reference to the glass-like, transparent nature of the vitreous body. The term "hyaloid" is derived from the Greek words "hyalos", meaning "glass", and "eidos", meaning "form" or "shape". This term is used to describe the membrane's glass-like appearance and its role in maintaining the shape of the vitreous body.

Structure

The vitreous membrane is a thin, transparent layer that surrounds the vitreous body. It is composed of collagen and hyaluronic acid, which give it its elasticity and transparency. The membrane is firmly attached to the retina at the optic disc, the macula, and the ora serrata. It is also loosely attached to the rest of the retina.

Function

The primary function of the vitreous membrane is to enclose and protect the vitreous body. It also helps to maintain the shape of the eye by providing a barrier against the movement of fluid and cells. This is important for maintaining the clarity of the visual axis and preventing the development of floaters.

Clinical significance

Damage or detachment of the vitreous membrane can lead to a number of eye conditions, including vitreous detachment, vitreous hemorrhage, and retinal detachment. These conditions can cause symptoms such as floaters, flashes of light, and loss of vision, and may require medical intervention.

See also

• Vitreous body
• Retina
• Visual system

References

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  Schematic diagram of the human eye

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  Vitreous membrane