Our eyes are similar to cameras which reflects the light off surfaces to produce images we see. The iris (a muscle which acts as a lens) controls the size of the pupil (can be can be considered as an aperture). Our iris reduces the size of the pupil when the light entering our eye is bright. The iris in the pupil is enlarged or dilated, to maximize the amount of light entering the eye, when it’s dark.

Let’s Have a Look At Some Of The Major Eye Parts:

Retina: delicate and finely styled nerve cells that reside in the internal eye. The retina receives light and transforms it into electrical signals for transmitting it to the brain.

Optic nerve: this consists of all of the nerve fibers that originate from the photoreceptors in the retina. These fibers gather to a bundle and exit the rear of the eye through small openings in its outer coat that is.

Macula: this contains the greatest concentration of cells, called photoreceptors, letting us see things in fantastic detail and get color signals.

Cornea: this is the front ‘window’ of the eye. It proceeds backward to shape the challenging outer fibrous coat of the eyeball. Visible at the region of the eye, that this coat is called the sclera.

Iris: this acts as a gatekeeper. The iris gives the eye its own color.

Lens: It’s a protein structure which can help focus pictures or how far away an object is.

Ciliary Body: this muscle changes the shape of the lens for focusing to permit. Additionally, it is a gland which produces a fluid called the aqueous humor. The equilibrium between the production and drainage of this fluid is among the facets that generate the strain on the eye is increased.

Let Us Discuss a Few Of The Diseases That Are Common:

Conjunctivitis: A swelling or inflammation of the conjunctiva, the thin, translucent layer of tissue which lines the inner surface of the eyelid and covers the white part of the eye.

Diabetic Retinopathy: This condition relates to the people who are already suffering from Diabetes. It causes damage to the retina, the light-sensitive eye part at the back of the eye.

Dry Eye: A state in which there are insufficient tears to lubricate and moisturize the eye.

Glaucoma: A group of disorders leading to radical damage to the optic nerve. A major cause of this disease is due to loss of nerve tissues. It may lead to vision loss as well.

Macular Degeneration: An eye disease affecting the macula (the middle of the light-sensitive retina at the back of the eye). Can result in loss of central vision.

Crossed Eyes: Also referred to as strabismus, the condition deals with both eyes looking at a same place at the same time. It typically occurs in those who are very farsighted or have poor eye muscle control.

Astigmatism: A vision condition that causes blurred vision due to the irregular shape of the cornea or at times the curvature of the lens inside the eyeshadow.

Cataract: A cloudy or opaque area develops over the normally transparent lens of the eye located behind the iris.

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