Question

What is the function of the posterior segment in the eye?

1) To provide shape to the eye
2) To maintain intraocular pressure
3) To support the lens
4) D. To contain the vitreous humor

Answer 1

The posterior segment of the eye is responsible for containing the vitreous humor, which is a viscous fluid that helps maintain the eye's shape, contributes to intraocular pressure, supports the retina, and allows light to pass through to the retina.

Step-by-step explanation:

The posterior segment of the eye is crucial for maintaining the structural integrity and proper functioning of the eye. It extends from the lens to the back of the eye and contains the vitreous humor, which is a clear, viscous fluid. The main function of the posterior segment is to contain the vitreous humor. This gel-like substance helps to maintain the eye's shape, contributes to intraocular pressure, and support the retina by keeping it in place against the back part of the eyeball. It also acts as a shock absorber for the eye and provides a clear path for light to pass through to the retina.

Specifically, the vitreous humor is responsible for filling the space within the posterior cavity, hence option 4, "To contain the vitreous humor," is the correct function of the posterior segment in the eye from the options you've provided.