Which statement about the vitreous humor is correct?

• A. It is a clear, watery fluid surrounding the eye and can be replaced if it is lost
• B. It is a clear, watery fluid located in front of the lens and can be replaced if it is lost
• C. It is a clear fluid that is produced by the lacrimal glands and cannot be replaced if it is lost
• D. It is a clear, jellylike fluid near the back of the eye that cannot be replaced if it is lost

Answer: (D)

Vitreous humor is the jellylike, clear content that fills the posterior segment of the eye, between the lens and the retina. It isn’t a watery fluid that’s continually produced and replaced like the aqueous humor in the front part of the eye. The vitreous forms early in development and remains largely unchanged, with little turnover, so once it’s lost or damaged, it isn’t readily replenished. This combination of location, gel-like consistency, and limited replacement explains why the statement describing it as a clear, jellylike fluid near the back of the eye that cannot be replaced is the correct description.