What is the vitreous humor?

The vitreous humor is indeed a jelly-like mass that fills the larger cavity of the eyeball, located behind the lens and in front of the retina. This gel-like substance plays a crucial role in maintaining the shape of the eye and providing structural support to the retina, while also allowing light to pass through to reach the retina where vision is processed.

Unlike the other options, the vitreous humor does not serve as a lubricating fluid, nor is it a specific layer of tissue. It is primarily responsible for the eye's internal environment and helps maintain its spherical shape, which is essential for optimal vision. Thus, recognizing the vitreous humor's function as a gelatinous support medium helps in understanding its significance in the overall anatomy and physiology of the eye.