This website uses cookies to ensure you have the best experience. Learn more

Treatment Needed To Beat Blindness Essay

759 words - 4 pages

Treatment needed to beat Blindness
There are many forms of blindness, some are neurologic and others are physiologic. Some conditions start to develop at a young age, and others are not aware of the effects until later on in life. [27]
One of the most recurrent forms of blindness is age-related macular degeneration (AMD). This condition mainly affects older adults above the age of fifty years. There are two types of AMD: ‘wet’ AMD and ‘dry’ AMD. [3]
‘Wet’ AMD is the least common but unfortunately the most critical. It is caused by the growth of abnormal blood vessels in the choroid. The choroid is a layer behind the retina consisting of connective tissue. Moreover, it also contains blood vessels that transport essential nutrients and oxygen to the retina. ‘Choroidal neovascularisation’ is the correct term to describe the growth of these tiny blood vessels. [1] The vessels pass through a barrier joining the retina and the choroid called the Bruch’s membrane. Here they leak blood and protein, this damages the macula (diagram to the right) and the rods and cones that at consisted within it. Treatments have been developed such as anti-VEGFs medicine, photodynamic therapy, and laser photocoagulation. [4]
The photoreceptor cones provide colour vision and sensitivity; these photoreceptors also help us to see in the daylight. Rods work when light is minimal; they are responsible for night vision and therefore help us see when it is dark.
‘Dry’ AMD is when the retinal epithelium layer in the eye thins and eventually degenerates. The retinal epithelium layer nourishes the photoreceptors (rods and cones), Dry AMD causes the photoreceptors to degenerate and die, therefore visual loss occurs. There is no cure at the moment for Dry AMD. However, people with this condition have been given antioxidants to reduce the progress of AMD.
In contrast, there is a genetic eye condition called Stargardt’s macular dystrophy. Its effects become evident at late childhood. The macula in the retina which is responsible for central vision becomes damaged by the accumulation of lipofuscin. [5] The mutations of the ABCA4 gene which stimulates the production of proteins for photoreceptors, prevents these proteins from transporting toxic products away from the eye. Therefore the accumulation of these toxic products creates lipofuscin and...

Find Another Essay On Treatment Needed to Beat Blindness

Color Blindness Essay

633 words - 3 pages the gene for color blindness, generally the other will not, so there is a dominant gene to take the place of the recessive one.      Currently, there is no cure for color blindness. There have been treatments that have failed, but none that have worked. One failed treatment for anomalous trichromatism was color tinted glasses. If you were green-weak, you would wear glasses with a tint of green. There were obvious problem

"King Lea"r - Theme of Blindness

778 words - 3 pages kicked him outof their home, just goes to show you how much Albany loved Goneril.Albany was also blind to the fact that Goneril was cheating on him andthat she was plotting to kill him. Fortunately, Edgar came across acure for Albany's blindness. A note outlining Goneril's evil planswas all Albany needed to see. Finally, Albany recognized what a devilhe was married to and for once let out his emotions when he said:"O Goneril,You are not worth

"Color Blindness"

653 words - 3 pages , the male will be color blind. If one of the X chromosomesof a female carries the gene for color blindness, generally the other will not, so there is a dominantgene to take the place of the recessive one.Currently, there is no cure for color blindness. There have been treatments that havefailed, but none that have worked. One failed treatment for anomalous trichromatism was colortinted glasses. If you were green-weak, you would wear glasses with a


996 words - 4 pages there is no way to prevent glaucoma, there are many successful treatments available to prevent the blindness caused by glaucoma. Because the gradual vision loss of chronic glaucoma may not be noticed until it is too late, regular eye examinations, dilated exams of the optic nerve, and screening tests of the visual field are essential for all persons aged 40 and older, especially is your family has a history of glaucoma. Treatment Treatment of

Qedipus. a Blind King

1562 words - 6 pages Blindness can normally be defined as the inability of the eye to see, but according to this play, blindness is not always a physical quality, but a mental flaw some people posses. The author uses physical blindness, as well as intellectual blindness to illustrate Oedipus' status as a tragic hero. Throughout the play, blindness is seen as a main theme, where Sophocles explored not only physical blindness, but also intellectual blindness. The

The Truth About Color Blindness

2020 words - 9 pages . Some people believe every fetus has the right to be born genetically unmodified, while others believe it should be up to the parents if they want to genetically modify their offspring. Gene therapy is no doubt on the rise and could be the next break through in humanity. People who acquire color blindness over time can possibly take medications or have surgery for treatment. Optometrists can also supply colored lenses or a single red-tint contact

The novel Blindness

1160 words - 5 pages The novel Blindness The sinners dealt with in our past novels and the present novel Blindness empathetically been assigned the trait of ignorance. Thus, providing the root of sin and degration of lives, as relating to the treatment of people in the short story Somni in the novel Cloud Atlas

Change Blindness Font Detection

1304 words - 6 pages majority of all inattentional and change blindness experimentation utilizes objects and scenes. The question of whether scenes contain too much sensory information is illustrated in the previously mentioned studies. In Simons and Chabris’ experiment, participants needed to detect an unexpected event by observing a scene with movement. Dynamic tasks, such as driving a simulated car in Kennedy and Bliss’s experiment, required visual attention to be

The Theme of Blindness in King Lear

943 words - 4 pages having an affair with Edmund, and planning to have her husband killed. Fortunately Edgar, devised a plan to cure Albany's blindness. A letter outlining Goneril's plan, was all that Albany needed to see. After reading the letter Albany came to his senses and confronted Goneril; " O Goneril,/ You are not worth the dust which the rude wind/ Blows in your face!" ( 4, 2. 29-31) Unlike Lear and Gloucester, Albany did not suffer from his bout of

Oedipus Rex: The Search for Truth

2527 words - 10 pages die to uncover the truth. Closure was needed for Oedipus the individual and Oedipus the king. Despite this need for closure, Oedipus remained blind to the clues in his path, plainly dismissing the ideas of other characters. Oedipus’ passion for knowledge was at least as strong as his blindness to the clues in his path. This blindness can be attributed to his pride. This pride gradually developed from his first arriving in Thebes. Due to

Molding of Society in Saramago's Blindness

752 words - 3 pages To an extent, fear can be used as a way to mold society. The fear of terrorism set out by the event of 9/11 made it a more fear-driven world with growing minds of over analytical, blind, ignorant and assumable citizens, finger-pointing at others. But Jose Saramago's Blindness shows the possibility of fear molding our society. An epidemic of a bright, white blindness affecting all people, such brightness that no one would see anything but the

Similar Essays

The Genetic Disease Color Blindness

465 words - 2 pages . Optometrists and eye specialists can do color vision testing, using specially designed charts to find out whether you are a color blind, and what type of color blindness. Although this inherited disorder is not a serious condition, there is no real treatment for it. Color blindness can neither be cured nor prevented.

Do Elderly People See The Gorilla? Effects Of Aging On Inattentional Blindness

2044 words - 8 pages blindness,” their study demonstrated that some people needed to be purposefully paying attention or be made aware that a distractor would be introduced in order to perceive it (Mack & Rock, 1998). Inattentional blindness was further illustrated by Daniel J. Simons and Christopher F. Chabris in their classic “gorillas in our midst” experiment. For this study, 6 participants were divided into 2 groups – one with 3 participants wearing white T

The Theme Of Blindness In King Lear

1785 words - 7 pages mean Goneril was after she flattered Lear with a bunch of lies and then kicked him out of their home, just goes to show you how much Albany loved Goneril. Albany was also blind to the fact that Goneril was cheating on him and that she was plotting to kill him.Fortunately, Edgar came across a cure for Albany's blindness. A note outlining Goneril's evil plans was all Albany needed to see. Finally, Albany recognized what a devil he was married to and

Merck's Case Ethical Essay

1847 words - 7 pages save lives despite being unprofitable. Utilitarianism is relevant to the Merck Co. case in that it would have been important for Merck to predict whether researching the drug further, or playing it safe with other research, would produce the greatest benefit for the largest number of people. One side would argue that while river blindness patients are poor, treatment would be of great benefit to those infected (and their families