What is vitreal?

Vitreous humor, or simply vitreous, is a clear, gel-like substance that fills the space between the lens and the retina in the back of the eye. It provides a cushioning effect and helps to maintain the shape of the eye. The vitreous is composed mostly of water, but also contains collagen fibers and other proteins.

Vitreous liquefaction is a natural process that occurs as we age, where the vitreous becomes more watery and less gel-like. This can cause floaters or flashes of light in the vision, which are usually harmless but can be a sign of a retinal tear or detachment in some cases.

In some medical conditions, such as diabetic retinopathy or uveitis, inflammatory cells or blood may enter the vitreous cavity, leading to inflammation and disruption of vision. Vitrectomy is a surgical procedure that removes the vitreous humor and replaces it with a clear saline solution. It is used in the treatment of several ocular diseases, including retinal detachment, macular holes, and severe vitreous hemorrhage.