What are the contents of the eyeball The contents of the eyeball include:

Ocular contents include aqueous humor, lens, and vitreous. Often collectively referred to along with the cornea as the refractive interstitium of the eye. It is characterized by being transparent, non-vascular, and has a certain refractive index to ensure the passage of light.

The contents of the eyeball include: aqueous humor, lens and vitreous, the human eye is approximately spherical, and the eyeball also includes the wall of the eyeball, the contents, nerves, blood vessels and other tissues.

The atrium is a space between the cornea and the lens, containing aqueous humor, which is divided by the iris into a larger anterior chamber (between the cornea and the iris) and a smaller posterior chamber (between the iris and the lens), the anterior and posterior chambers communicate through the pupil, and the annular area at the junction of the iris and the cornea is the iris corneal angle or anterior chamber angle.

The wall of the eyeball is divided into three layers, the outer layer is the fibrous membrane, the middle layer is the uvea, and the inner layer is the retinum.

The contents of the eye include aqueous humor, lens, and vitreous. The external light is refracted through the cornea and the transparent contents, focused on the retina of the fundus, and then converted into nerve impulses through the photosensitive transposition of the optic cells, which are transmitted to the visual center of the brain through the optic nerve and optic duct to produce vision.

Aqueous humor, lens and vitreous. The human eye is approximately spherical. The eyeball includes tissues such as the wall of the eyeball, its contents, nerves, and blood vessels.

The eyeball wall is mainly divided into three layers: outer, middle, and inner.

The outer layer is made up of the cornea and sclera. The first 1 6 is a transparent cornea, and the remaining 5 6 is a white sclera, commonly known as the "white of the eye". The outer layer of the eye maintains the shape of the eye and protects the tissues inside the eye.

The cornea is the transparent part of the front of the eye through which light rays enter the eyeball. The sclera is opaque, milky white, and tough in texture.

The middle layer is rich in pigments and blood vessels, including the iris, ciliary body, and choroid.

Iris: Ring-rounded, located in front of the lens. People of different races have different iris colors.

**There is a round hole, called the pupil. The ciliary body is connected anteriorly to the base of the iris, to the choroid, to the lateral sclera, and medially to the lens by the suspensory ligament. The choroid is located between the sclera and the retina.

The blood circulation of the choroid nourishes the outer layer of the retina, and the rich pigment it contains acts as a darkroom.

The inner layer is the retina, which is a transparent membrane and the most acute area for the transmission of nerve information formed by vision. The visual information received by the retina is transmitted to the brain through the optic nerve.

Ocular contents include aqueous humor, lens, and vitreous.

Aqueous humor is produced by the ciliary process, which nourishes the cornea, lens and vitreous humor, and maintains intraocular pressure.

The lens is an elastic, transparent body shaped like a biconvex lens, located behind the iris, behind the pupil, and before the vitreous.

The vitreous is a transparent colloid, and the main component is water. The vitreous humor has a refractive role and also plays a role in supporting the retina.

The contents of the eyeball are aqueous humor, lens, and vitreous humor from front to back. The common characteristics of these objects are that they are transparent, nonvascular, and have a certain refractive index, and together with the cornea, they form the refractive interstitium of the eyeball, which can ensure the transmission and refraction of light. Aqueous humor, lens, and vitreous fill the eyeball cavity and have the effect of maintaining intraocular pressure, supporting the eyeball, and maintaining the shape of the eyeball.

Aqueous humor fills the front and has the effect of nourishing the eyeballs.

The lens is a double-sided, convex, elastic convex lens. The convexity of the lens is variable: when looking at distant objects, the lens is flattened, the refractive force is weaker, and the distant objects are imaged on the retina; When looking at close objects, the lens convexity increases and the refractive force is greatly enhanced, so even small objects in close proximity can be seen clearly.

In medicine, this automatic change in the refractive power of the eye so that close objects can still be focused on the retina is called accommodation. This function is carried out by the regulatory center of the brain that controls the ciliary muscle, which contracts and causes the suspensory ligament of the lens to relax, and the lens becomes convex due to its elasticity. The adjustment of the lens is completely automatic, resulting in extremely accurate lens alignment in an instant, which is unmatched by the lenses of any advanced camera.

As people get older, after reaching their 40s, the regulatory effect of the lens gradually weakens, and the ability to automatically respond to light begins to decline, which is often referred to as "presbyopia". This is the reason why older people wear reading glasses when looking at close objects or reading books. The vitreous humor is a clear colloidal body that fills the cavity of the eyeball behind the lens.

The contents of the eyeball include aqueous humor, lens, and vitreous, which are characterized by being transparent, nonvascular, and have a certain refractive index.

The role of aqueous humor is to supply nutrients and oxygen to the tissues of the eye, especially the cornea and lens, and to drain metabolism. There is also the maintenance of intraocular pressure.

The metabolism of the lens is complex, and when it is metabolized or the capsule is damaged, the lens becomes cloudy, forming cataracts.

The vitreous humor is located in the vitreous cavity behind the eyeball 4 5 and plays a role in supporting the retina and maintaining intraocular pressure.