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Apr 29, 2023 · The eye is always producing aqueous humor. To maintain a constant eye pressure, aqueous humor also drains from the eye in an area called the drainage angle. Behind the anterior chamber is the eye’s iris (the colored part of the eye) and the dark hole in the middle called the pupil. Muscles in the iris dilate (widen) or constrict (narrow) the ...
- Peripheral Retina
A number of eye problems can affect the peripheral retina...
- Macula
Macula - Eye Anatomy: Parts of the Eye and How We See -...
- Vitreous
Vitreous - Eye Anatomy: Parts of the Eye and How We See -...
- Lacrimal Gland
Lacrimal Gland - Eye Anatomy: Parts of the Eye and How We...
- Eye Muscles
Eye Muscles - Eye Anatomy: Parts of the Eye and How We See -...
- Night Vision
Night vision is the ability to see in low light conditions....
- Drainage Angle
Drainage Angle - Eye Anatomy: Parts of the Eye and How We...
- Rods
Rods are a type of photoreceptor cell in the retina.They are...
- Peripheral Retina
- Conjunctiva
- Sclera
- Lris
- Pupils
- Cornea
- Uvea
- Choroid
- Retina
- Eye Muscles
- Macula Lutea
The conjunctivais the membrane covering the sclera (white portion of your eye). The conjunctiva also covers the interior of your eyelids. The conjunctiva helps lubricate the eyes by generating mucus and tears. It also aids in immunological monitoring and prevents microorganisms from entering the eye. Pink eye (conjunctivitis) occurs when this thin ...
The whites of the eye (sclera) cover more than 80% of the eyeball’s surface. The sclera has a smooth, white exterior but is brown on the inside. It has groves that help properly attach the eye tendons, providing stability and protection while staying flexible. This allows the eye to move as needed to see different objects. The episclera is a thin l...
The iris is the colored part of the eye and is unique to each person. This structure is located in the front of the eye, between the cornea on the outside and the lens on the inside. The iris primarily regulates how much light reaches the retina by controlling the size of the eye’s “window,” or pupil. As a result, it narrows in bright light while o...
The pupil is seen as a black dot in the center of the iris. It’s essentially a hole that allows the eye to focus on the things in front of it. Similar to the iris, they open and close to regulate the amount of light that enters the eye. When light enters the eye through the lens, it focuses light rays through the pupils and into the retina. The dif...
The cornea is the clear and protective outer layer of your eye. Along with the sclera, the cornea is a barrier against dirt, infectious microorganisms, and other substances that can damage the eye. Aside from protection, the cornea also plays a significant role in vision. Its dome-shaped surface bends light as it passes through the eyes, allowing i...
The uvea is the eye’s middle layer. It is located underneath the white part of the eye (the sclera). It’s composed of three parts, namely, the iris, the ciliary body, and the choroid. These structures control some eye functions, such as adapting to varying levels of light or object distances. If any structures become inflamed, the resulting conditi...
This vascular layer is located between the sclera and retina of your eye. It delivers nourishment from the blood and oxygen supply to the retina’s outer layers. Essentially, the choroid is the source of life that keeps the retina functioning effectively. It also reflects light, causing the red-eye effect in photographs.
The retina is a light-sensitive layer that covers your eye’s rear surface. Images are transmitted to the retina when your eye picks up the images. It converts images into impulses that are sent to your brain through the optic nerve, allowing you to see and interpret images. Some of the ocular conditions that affect the retina include: 1. Diabetic r...
The eye has six muscles that come from the eye socket (orbit) and work to move the eye up and down, side to side, or in a circular motion. These muscles include: 1. The superior rectus.Attaches to the top of the eye and moves the eye upwards. 2. The inferior rectus.Attaches to the bottom of the eye and allows downward eye movement. 3. The medial re...
Light rays are focused on the macula lutea when an eye looks directly at an object. The macula lutea is a yellow oval area in the retina’s center (back of the eye). The center of the macula is known as the fovea. The macula lutea is the section of the retina responsible for sharp, detailed central vision (visual acuity). It has a high concentration...
Eye Parts Description and Functions; Cornea: The cornea is the outer covering of the eye. This dome-shaped layer protects your eye from elements that could cause damage to the inner parts of the eye. There are several layers of the cornea, creating a tough layer that provides additional protection.
Eye PartsDescription And FunctionsCorneaThe cornea is the outer covering of the ...ScleraThe sclera is commonly referred to as the ...PupilThe pupil appears as a black dot in the ...IrisThe iris is the area of the eye that ...Nov 15, 2023 · Your eyes are a key sensory organ, feeding information to your brain about the outside world. Your eyes do the “physical” part of seeing. The signals they send allow your brain to “build” the picture that you see. Eye-related symptoms are also key clues to issues affecting your whole body, so experts recommend making eye health a priority.
Jan 14, 2021 · Now that you know the names of the parts of the eye, it’s easy to follow the steps leading to vision. Cornea: Light enters the eye through the cornea. Because of the shape of the cornea, it exits pre-focused. Aqueous Humor/Pupil: From the cornea, light passes through the aqueous humor and through the pupil.
The colored part of the eye. The iris is partly responsible for regulating the amount of light permitted to enter the eye. Lens (also called crystalline lens). The transparent structure inside the eye that focuses light rays onto the retina. Lower eyelid. Skin that covers the lower part of the eyeball, including the cornea, when closed. Macula.
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Feb 27, 2019 · Light is focused primarily by the cornea – the clear front surface of the eye, which acts like a camera lens. The iris (colored part) of the eye functions like the diaphragm of a camera, controlling the amount of light reaching the retina by automatically adjusting the size of the pupil (aperture). The eye’s crystalline lens is located ...
