What is the name of the clear covering at the front of the eye?

cornea
The outer layer of the eyeball is a tough, white, opaque membrane called the sclera (the white of the eye). The slight bulge in the sclera at the front of the eye is a clear, thin, dome-shaped tissue called the cornea. The middle layer is the choroid.

What is vitreous humour made of?

Vitreous humor is the fluid-like gel, composed of approximately 98–99% water with trace amounts of hyaluronic acid, glucose, anions, cations, ions, and collagen, located in the posterior chambers of the eyes (Scott and Oliver, 2001).

What is the function of aqueous Humour in eye?

Aqueous humor – the clear, watery fluid between the cornea and the front of the vitreous. The aqueous humor bathes and nourishes the lens and maintains pressure within the eye. Since the lens and cornea have no blood supply, the aqueous humor performs the blood’s job of carrying nutrients to those structures.

What happens if you lose vitreous humor?

Problems with the vitreous humor may ultimately lead to detachment of the retina from the back wall of the eye, which may require surgery. Retinal detachment can result in permanent loss of vision.

Can vitreous humor be replaced?

The vitreous humor cannot regenerate; therefore, the cavity must be filled with a substitute material during and after vitrectomy. Natural polymers, although a reasonable choice for a vitreous substitute, are limited by low stability.

What are the anterior parts of the eye?

The anterior segment or anterior cavity is the front third of the eye that includes the structures in front of the vitreous humour: the cornea, iris, ciliary body, and lens.

Where in the eye is aqueous humor located?

Aqueous is a thin, watery fluid located in the anterior and posterior chambers of the eye. The anterior chamber lies between the iris (colored part of the eye) and the inner surface of the cornea (the front of the eye). The posterior chamber is located behind the iris and in front of the lens.

What is the difference between aqueous humour and vitreous Humour?

The aqueous humour is a fluid which is between the cornea and lens that helps the eye function properly. Vitreous humour is a fluid which is between the lens and retina that keeps the eye wet.

What are choroidal folds?

Choroidal folds are lines, grooves or striae predominantly involving the posterior pole of the eye which appear as alternating light and dark lines on fluorescein angiography. They are often arranged in a parallel and horizontal fashion but may be vertical, oblique, or irregular.