The vitreous is composed of what percent water?

The vitreous is composed of what percent water?

• A. 92%
• B. 96%
• C. 98%
• D. 100%

Answer: (C)

The vitreous is a hydrated gel, dominated by water. It is about 98% water by weight, with roughly 2% comprised of a collagen-hyaluronic acid network that gives it its gel-like, transparent structure. This tiny matrix is essential for maintaining the vitreous’s viscoelastic properties and optical clarity; if it were pure water, it would flow too easily and lose the gel form needed to fill the eye and transmit light effectively. The high water content explains why the vitreous is clear and supportive, while the small amount of matrix components provides the necessary structure.

The vitreous is a hydrated gel, dominated by water. It is about 98% water by weight, with roughly 2% comprised of a collagen-hyaluronic acid network that gives it its gel-like, transparent structure. This tiny matrix is essential for maintaining the vitreous’s viscoelastic properties and optical clarity; if it were pure water, it would flow too easily and lose the gel form needed to fill the eye and transmit light effectively. The high water content explains why the vitreous is clear and supportive, while the small amount of matrix components provides the necessary structure.