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Apr 29, 2023 · Here is a tour of the eye starting from the outside, going in through the front and working to the back. Eye Anatomy: Parts of the Eye Outside the Eyeball. The eye sits in a protective bony socket called the orbit. Six extraocular muscles in the orbit are attached to the eye. These muscles move the eye up and down, side to side, and rotate the eye.
- Peripheral Retina
A number of eye problems can affect the peripheral retina...
- Macula
A number of eye problems can affect the macula and can lead...
- 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
The other four muscles move the eye up, down, and at an...
- 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
Directly underneath this oil coat is the watery layer that we associate the most with tears (which makes sense since this water layer makes up 90% of the tear film). And last but not least, just underneath the watery layer is the final layer that rests and helps bind the tear film on the cornea: the mucous layer.
Mar 16, 2024 · It carries messages from your eyes to different brain areas. Think of it as two separate roads—one for each eye. These roads bring in information from the left and right sides of what you see. Each road is made up of fibers from different parts of your eyes. One part of the tract carries information from the outer side of your vision.
This blog has been shared by EyeMantra, to raise awareness about the eye, its anatomy, various parts, and their functions. To get your eye checked thoroughly from an expert ophthalmologist, you can make a booking at +91-8851044355. Or mail at eyemantra1@gmail.com.
- What Does The Cornea do?
- What Does The Iris do?
- What Does The Retina do?
- What Does The Macula do?
- What Is The White Part of The Eye called?
- What Does The Ciliary Body do?
- How Does The Eye Work?
- How Does The Eye Move?
- What Do Our Eyelids do?
- Why Are Our Eyes wet?
The clear front of your eye is called the cornea. This transparent disc sits over the pupil and iris, protecting them and letting in light. It is highly sensitive. The cornea also forms the first part of the process of focusing what you look at into an image on the back of your eye (see below).
The coloured part of your eye is called the iris. The iris is made up of muscle fibres which help to control the size of the pupil. The pupil is not an actual structure but the circular opening in the middle of the iris. The pupil appears as the dark central part of the eye. The pupil can change size (through changes in the iris) in order to regula...
The retina is a layer on the inside of the back of the eyeball. It contains highly specialised nerve cells. These convert the light which is focused there into electrical signals. These are then passed through the optic nerves to the parts of the brain which process vision and build up the picture that we see.
Near the centre of the retina is the macula. The macula is a small highly sensitive part of the retina. It is responsible for producing fine detail in central vision, the part you use when you look directly at something. It contains the fovea, the area of your eye which produces the sharpest images of all.
The white of your eye is called the sclera. This is a hard protective layer which covers all the eyeball except the cornea. The next layer beneath the sclera, between the retina and the sclera, is called the choroid. The choroid contains lots of blood vessels which provide oxygen and nutrients to the retina below. At the front of the eyeball the ch...
The ciliary body is a part of the eye which includes the ciliary muscle (which changes the shape of the pupil by changing the shape of the iris) and the ciliary epithelium, which produces aqueous humour. This is the liquid that fills the front of the eye. Aqueous humour is made continuously. It circulates through the front part of the eye and then ...
In order for an object to be seen, the light coming from the object must hit the retina. For this reason, the eye works by using structures in the eye to bend the light entering the eye, so that when they reach the retina they are focused. The cornea and lens both help to do this. The cornea gives the initial bend to the light but the lens is the f...
The movement of each eye is controlled by six muscles that pull the globe of the eye in various directions. They work together in a synchronised way. For example, to look left, the lateral rectus muscle of the left eye pulls the left eye outward and the medial rectus of the right eye pulls the right eye towards the nose. At the same time levator pa...
The upper and lower eyelids help to protect the eye, and keep its surface moist. The upper eyelid is more mobile and is attached to a special muscle, called the levator palpebrae superioris. This muscle allows you to control the upper eyelid. Eyelids help to spread the tear film across the eye by blinking. They also produce a special oil which slow...
The sensitive surface of the eye needs to be kept moist. The eyes are in constant contact with your eyelids. Without lubrication, the friction between the two layers of conjunctiva would cause rubbing. To prevent this, and to help remove debris, the eye produces a tear film.
Sep 23, 2021 · What is your reaction if an object comes toward your eye? You close your eyes. Whatever is coming towards your eye has to hit your eyelid first before it can get to your eye. The eyelid is working to protect the eye. Replenish the tear film. Each blink of the eyelid works like a squeegee to smooth out the tear film on the surface of the eye.
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Apr 9, 2021 · This is an often-overlooked part of the eye. The tears form a smooth surface over the front of the cornea and help avoid scattering of light as it enters the eye. The tear film also provides nutrition, protection (antibacterial), and cleansing of the surface of the eye. The tear film is composed of three parts/layers: the aqueous (water), mucin ...
