What is the vitreous humor?

• A. The clear gel that fills the space between the lens and the retina.
• B. The gel between the cornea and the lens.
• C. The fluid in the anterior chamber.
• D. The jelly behind the retina.

Answer: (A)

The vitreous humor is the clear gel that fills the space between the lens and the retina. It’s a gel-like, transparent substance that helps keep the eye’s shape and holds the retina in place so light can pass through to the retina without distortion. This description matches the vitreous precisely: a gel between the lens at the front and the retina at the back. The other spaces in the eye contain aqueous humor, a fluid, not a gel, with the anterior and posterior chambers between the cornea and lens. Describing the vitreous as “jelly behind the retina” can be misleading since the vitreous lies in front of the retina, not behind it.