Injury Stats
Approximately 2.4 million eye injuries occur annually in the United States. Of these 2.4 million, more than 40,000 result in permanent visual impairment. More than 13% of these eye injuries (over 310,000) are from sports-related activities alone. Every year, eye injury cost an estimated $300 million in the United States for job-related eye injuries, which accounts for only one-third of all eye injuries, according to the United States Eye Injury Registry.
Functions
Your eyes contain the receptors responsible for sight, which is the most dominant sense in humans. These receptors or “sensors” receive information about the surrounding environment and pass this information to your brain through the optic nerve. Your brain rapidly processes this information and creates the images you see, which allows you to see stationary objects, as well as follow moving objects whether your head is moving or is stationary.
Your eyes are recessed within the bony sockets of your skull, which provide protection from many types of blunt and sharp object impacts. Even though your eyes are largely protected by the bony sockets of the skull, they are still susceptible to Injury from the front because the front parts of the bony sockets are open which expose the eyes.
Injuries
Your eyes can be injured in a number of different ways, such as by being cut or punctured (penetrated) with a sharp object, being impacted with enough force to cause the eye ball to burst, or by being excessively moved within its socket causing the optic nerve to tear.
There are 3 common types of eye injury: a corneal laceration (a cut or puncture wound), a globe rupture (bursting of the eye ball, and an optic nerve avulsion (complete tearing of the optic nerve), ea...
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...the eye ball, a blunt object strikes the eye ball, or the eye ball is moved excessively within its socket.
When a sharp object is pushed against the eye, it deforms the eye ball inward and creates stresses within the tissue. When these stresses are high enough, the tissue tears and continues until the tear goes completely through the wall of the eye ball, at the location of the penetrating (sharp) object.
When a blunt object collides with the eye ball, it first pushes and deforms the eye ball inward, also creating stresses within the tissue. As the blunt object continues to push on the eye ball the pressure within the eye increases, which causes the stresses within the tissue to further increase. When these stresses are high enough, the tissue begins tearing at the weakest point in the wall of the eye, and continues until the tear goes completely through the wall.
The symptoms of eye contact come in two forms and at different times, ocular symptoms within 4 to 6 hours and corneal edema within 1 hour. Symptoms are as follows: pain, photophobia, blepharospasm, lacrimation, conjunctivitis, corneal lesions, blistering of the eyelids, and infections. Short term to long term effects that could occur is blindness though this may clear up with 10 days.
Glaucoma, one of the leading causes of blindness, is estimated to affect 1 of every 50 adults. Although glaucoma can occur at any age, the risk of developing the disease increases dramatically after the age of 35. Glaucoma is also more likely to develop in patients who are severely nearsighted, have a family history of the condition, diabetics and Black or African American. This disease often goes unnoticed until permanent vision loss has occurred. Visual damage from glaucoma can be prevented by early diagnosis and careful treatment. Glaucoma is related to elevated fluid pressure of the eye which is causing loss of side vision. It is a series of diseases which damage the optic nerve. Damage to the optic nerve and retina causes blind spots in the field of vision. When the entire nerve is destroyed, blindness will occur. Glaucoma is usually caused by an increase in the fluid pressure in the eye. The front part of the eye contains a clear, nourishing fluid called aqueous which constantly circulates through the eye. Normally, this fluid leaves the eye through a drainage system and returns to the blood stream. Glaucoma occurs from an overproduction of fluid or when the drainage system becomes blocked, causing fluid pressure to increase. The high pressure causes damage to the optic nerve, resulting in permanent vision loss. The exact reason the fluid system in the eye stops functioning properly is not completely understood
For closed head injury, it is a trauma in which the brain is injured as a result of a blow to the head, or a sudden, violent motion that causes the brain to knock against the skull. A closed head injury is different from an open head injury, in that no object actually penetrates the brain. Closed head injuries can be diffuse or focal which mean that they affect cells and tissues throughout the brain or the damage just occur in one area of the head. Closed head injuries can range from mild to severe. Common causes of closed head injury include automobile accidents, assault,
Jane goes to work everyday at an animal-testing lab. She pours liquids used in eyeliner into the eyes of numerous albino rabbits. The rabbits' eyes are held open with clips so that for the 72 hour test period, the rabbits can't even blink. The rabbits' bodies are in a box so that only their head protrudes. Jane watches the rabbits and records how the rabbits’ eyes react. She observes as the rabbits’ eyes bleed intensely. Some eyes become extremely deteriorated, and some rabbits even become blind due to the toxicity of the liquid being tested. As she walks down the line writing down what each rabbit's reaction is, Jane notices many rabbits have broken their own necks trying to escape the horrendous pain ("Product...").
Open and Closed injuries are that in which are resulting in impairment in one or more areas, such as cognition; Language; memory; attention; reasoning; abstract thinking; judgment; problem-solving; sensory; perceptual; and motor abilities; Psychological behavior; physical functions; information processing; and speech. (exceptional lives: special-education in today schools) Open head injury is caused by penetration of the skull with direct injury to the head. Results may be from a bullet wound or any other penetration of the skull in any way which may cause fragments of the school to become lodged into the brain. Open head injuries of traumatic brain injuries can be just as serious as close head injuries. Now closed head injuries are when the school is intact and it has not been penetrated. Indirect or direct force to the head can cause this type of injury. It can result from a slip or fall, and can also result from a motor vehicle accident when the head has suffered major impact on either behind the head or the front of the
When we got the eye it was big, fatty and gross. The fat and muscle around the eye was very soft and mushy but difficult to cut. The inside of the cows eye there was a black liquid.
Skull fractures called a contusion cause a distinct area of swollen brain tissues mixed with broken blood vessels. When a brain is shaken back and forth within the confines of the skull the injury is called a Countertop. This often occurs in a high-speed car accident and in shaken baby syndrome. This type of injury can also cause injury to the nerves and loss of connections among the nerves called shearing. Contusions can lead to fewer connections in the brain.
The four main components of the eye that are responsible for producing an image are the cornea, lens, ciliary muscles and retina. Incoming light rays first encounter the cornea. The bulging shape of the cornea causes it to refract light similar to a convex lens. Because of the great difference in optical density between the air and the corneal material and because of the shape of the cornea, most of the refraction to incoming light rays takes place here. Light rays then pass through the pupil, and then onto the lens. A small amount of additional refraction takes place here as the light rays are "fine tuned" so that they focus on the retina.
Fluid circulating inside the front portion of the eye is produced by a structure called the ciliary body, which is located behind the iris. This fluid moves through the opening of the pupil, passes into the space between the iris and the cornea, and drains out of the eye through a tissue called the angle. With glaucoma, the passing of fluid through the angle is either reduced or suddenly stops, and amounts of fluid inside the eye increase. This high fluid pressure hurts the nerve fibers and the eye's optic nerve and causes blind spots. It may lead to blindness in some cases.
of the eye, this is what gives form to the eyeball. The vascular tunic has three
Head and facial injuries are very dangerous need to be prevented. Head injuries can cause death or permanent damage to an athlete for the rest of their lives. Facial injuries like hyphema can affect an athletes everyday life due to the decrease in visual performance. That’s why goggles or protective eyewear should be worn when playing a sport that has small round objects. These injuries can be prevented.
...the surrounding objects. They also assist humans to do their duties in an orderly way without crossing each other’s paths. It is eyes that ferry light to our brains, therefore triggering the learning and communication process; meaning without eyes, people would literally not be visionary.
Have you ever wondered why the sky is blue. Often times I find myself looking up on a clear day, pondering over that question? Why isn’t it green, or red or pink for even that matter. Every day, the human eye blinks more than 23,00 times. The human eye is a complicated organ that performs one of the most important tasks for our body. There are many questions about the eye however. What function do they perform? What happens if we don’t take care of them? How exactly do they work together to help us form images? Exactly how far can they human eye see?
The Eye is the organ of sight. Eyes enable people to perform daily tasks and to learn about the world that surrounds them. Sight, or vision, is a rapidly occurring process that involves continuous interaction between the eye, the nervous system, and the brain. When someone looks at an object, what he/she is really seeing is the light that the object reflects, or gives off.