Know the Anatomy of the Human Eye: Parts and Functions

Know the Anatomy of the Human Eye: Parts and Functions

Know the Anatomy of the Human Eye: Parts and Functions


Know the Anatomy of the Human Eye: Parts and Functions

The eye is one of the most important organs of the body. However, there are still many who don't know about the important parts of the anatomy of the eye. To get a brief explanation of the anatomy of the eye and the function of each part, see the reviews below.

Anatomy of the human eye and its function

Know the Anatomy of the Human Eye: Parts and Functions

1. Cornea

The cornea is a transparent dome-shaped network that forms the very front of your eyes. The cornea serves as a window and as a way of entering light into your eyes. Thanks to the cornea, your eyes also begin the process of regulating the process of light so that you can see the words and images clearly.

The cornea serves to give 65-75 percent of the focus of your eye strength. You also need to be careful to maintain the health of your cornea. Because inside the cornea contains many nerve endings that make it very sensitive and an important part in the pathway of the entry of light into the eye.

2. Front chamber (anterior chamber)

Know the Anatomy of the Human Eye: Parts and Functions

The front chamber is a jelly-like bag behind the eye cornea, in front of the lens. This sac, also known as the anterior chamber (see in the picture), contains aqueous humor that helps bring nutrients to the eye tissue. This aqueous humor serves as a counterweight to the pressure inside the eye.

Your eye health depends on the production process and the flow of fluid in the front chamber. If there is a problem, this can cause pressure problems in the eyes, such as glaucoma.

3. Sklera

Sklera is a hard white membrane with fibrous tissue that covers your entire eyeball (all the way around), except the cornea. Inside is a muscle attached to move the eye attached to the sclera.

4. Iris and pupil

Iris and pupils are parts of the eye anatomy that are interconnected with each other. Iris is a ring-shaped membrane inside the eye that surrounds the hole in the middle. Now the hole in the middle is what is called the pupil. Pupils are muscles that can be closed and open or shrink and enlarge.

Iris functions to regulate the amount of light that enters the eye and adjusts to the pupil opening. When exposed to bright light, the iris will close (or narrow) and make the pupils open smaller to limit the amount of light that enters your eyes.

Also, the iris determines the color of your eyes. People with brown eyes have high pigmented irises, while people with blue or light eyes have little iris with pigments.

5. Lens

The lens is a transparent and flexible tissue that is located just behind the iris and pupil. This is one of the second parts of your eye, after the cornea. The function of the lens is to help focus light and images on your retina.

Because the lens of this eye is flexible and elastic, its formation can turn curved and focus on objects around, people who are nearby or from a distance. This lens provides 25-35 percent of the focus of your eye's strength.

As we get older, one of the important parts of the eye's anatomy can lose its elasticity and the ability to capture objects in focus. This is commonly referred to as presbyopia or old eyes, which is a visual impairment that many older people experience.

6. Choroid and conjunctiva (conjunctiva)

Choroid is a dark brown membrane that has many blood vessels in it. Its position is located between the sclera and retina. Choroid serves to supply blood and nutrients to the retina and to all other structures in the anatomy of the eye. While the conjunctiva is a thin layer of tissue that covers the entire front of your eyes, except for the cornea.

7. Vitreous

Unlike the aqueous humor that is present in front of the eyepiece, the vitreous humor is located behind the eyepiece. Vitreous is a jelly-like substance that fills the inside of the back of the eye. Over time, the vitreous becomes thinner and can be released from the back of the eye.

If your eyesight looks like there is a white cloud floating or the light blinks, immediately see an ophthalmologist. Because, separate vitreous substances can cause a hole (a condition called the macular hole) to develop in the retina.

8. Retina and optics

Retina is a network that is sensitive to light. This retina covers the inner surface of the eye. Cells in the retina can turn incoming light into electrical impulses. This electrical impulse is carried by the optic nerve (which resembles your television cable) to the brain, which finally interprets it as the image or object you see.

Whereas the macula is a small sensitive area in the middle of the retina which provides clear central vision. The Fovea is located at the center of the macula and its function is to provide the sharpest detail in your eyes.

Also Read:

  • Prevent Tired Eyes Due to Staring at Gadgets with 20-20-20 Technique
  • Beware, the Eyelid Can Slack Due to Frequent Sleeping on the Prone
  • 6 Causes of the Most Common Red Eyes


Pilih Sistem Komentar

No comments