What is the problem? Age related macular degeneration (AMD) is a disease that causes loss of vision over a period of time. It is a disease that comes on slowly and therefore a lot of times it is just associated as being due to old age. When this disease takes full effect sufferers can lose a large amount of central vision however they usually retain their peripheral vision. Why is it a problem? Age related macular degeneration is becoming more frequently occurring in the UK, according to an article from the Daily Express based on research that estimates the number of people affected by age related macular degeneration. It is believed that half of the 370,000 people registered as blind in the UK are thought to be affected by AMD. In 2012, 2.4% …show more content…
As it is the part of the eye that is responsible for central vision, sufferers therefore lose their ability to use their central vision. There are two types of AMD; Dry AMD and Wet AMD. Dry AMD develops when there is a build-up of waste products called drusen. A build-up of these waste products result in the damage of light cells of the macular leaving you with blurry central vision. Wet AMD however is a more severe case of AMD which develops due to abnormal blood vessels growing under the macular, believed to be caused because of a misguided attempt to clear the waste products. They damage the macular as they can leak blood and therefore leave scarring. Dry AMD sufferers can lose vision gradually; Wet AMD sufferers can lose vision within a couple of days if not treated. …show more content…
Compared to the small percentage of 5.6% it is clear that Ranibizumab works according to this particular investigation from the ANCHOR study. The visual acuity of 20/40 or above was recorded more in the results of the patients of those who received the treatment of Ranibizumab. It is also stated that a much smaller proportion had visually acuity of 20/200 or worse. 13.3% of patients in the verteporfin group experienced a severe loss of vision, whereas the Ranibizumab group had no patients experiencing severe loss of vision, this is shown in the graphs (previous page)
In order to reverse or prevent some types of eye damage, variations of gene-replacement, or the identifying a mutation that cripples retinas and fixing the problem by slipping a good copy of genes into the eye, could find, or even fix similar genetic defects early on. In addition to gene-replacement, stem cells, or cells in early stage of development, replace or reduce the failing retinal cells that cause blindness. Dobbs also talks about bionic retinas, or microchips that replace failed retinal cells by collecting or amplifying light. They bring a low-resolution version of sight to people with histories of blindness.
Amyotrophic lateral sclerosis is a degenerative neuromuscular disorder that affects the motor neurons of the spinal cord and brain. Due to degeneration or destruction of the motor neurons, muscles throughout the body begin to become weak and waste away to the point that an individual has no muscle movement. In most cases, due to having muscle strength, a patient with ALS will succumb to their disease because of respiratory failure or dehydration and malnutrition. It is a progressive disease with a prognosis of 3 to 5 years after initial diagnosis. There is no cure for the disease as of now.
It is a very dangerous and unfortunate disease that has no cure at the moment. There are ways to handle and slow down the disease process, and many people learn to deal with the disease. ALS is not one disease; it is a bunch of different types of diseases that lead to ALS. Anything from spinal injury to gene mutations that cause loss of motor skills is considered to be ALS. ALS may be suspected if there is gradual muscle weakness to muscle loss in 1 or more areas of the body.
Cognitive blindness can be described as
Kevin Mc Kinney from the American academy of ophthalmology acknowledge that it exists different types of glaucoma and categorize them as follow: “1) Primary open angle glaucoma: this is the most common form of glaucoma. It occurs when the trabecular meshwork of the eye gradually becomes less efficient at draining fluid. 2) Normal tension glaucoma: that type of glaucoma arises even though the pressure in the eye is normal, but the optic nerve is damaged.3) Angle closure glaucoma: also called narrow angle glaucoma. It occurs when someone’s iris is very close to the drainage angle in their eye.
The wet AMD occurs when abnormal blood vessels behind the retina starts to grow underneath the macular. This condition is called choroidal neovascularization (CNV). These blood vessels tend to be very fragile and always leak blood and fluid into the retina, and subsequently causing permanent damage to light-sensitive retinal cells, which die off and create blind spots in central vision. Thus, people with wet AMD can loss their vision rapidly. Also, wet AMD causes distortion of vision that makes straight lines look wavy, as well as blind spots and loss of central
It's a type of disorder caused by the damage of the occipital lobe. Visual object agnosia
Amyotrophic lateral sclerosis, commonly referred to as ALS or Lou Gehrig’s disease, is a disease that either can be passed along genetically through a family line or develop sporadically if a genetic mutation occurs in an individual’s DNA. There are numerous genes in which a mutation could lead to the development of ALS. These genes include SOD1, FUS, C9or72, ANG, SETX, TARDBP, and VPB genes. The most common mutated gene, especially in familial ALS in the United States, occurs on the C9or72 gene with the SOD1 following closely behind. ALS occurs less through inheritance as it does sporadically; however, it is usually autosomal dominant when inherited.
Some authors have reported a good visual outcome simply with observation. Even though there is no consensus about the management of retinal arterial macroaneurysm, treatment is advised in cases of exudative manifestations involving the fovea with visual acuity deterioration.12,13,14 Therapeutic interventions for eyes with retinal arterial macroaneurysm include direct photocoagulation to the aneurysm itself,15 pneumatic displacement with tissue plasminogen activator for submacular hemorrhage secondary to retinal arterial macroaneurysm,16,17 surgical removal of associated hemorrhage with pars plana vitrectomy,18,19 and photodisruption of the internal limiting membrane (ILM) or the posterior hyaloid using neodymium:yttrium-aluminum-garnet (Nd:YAG) or argon laser to release the
Lens Transplants for Cataracts Introduction: Cataracts is a very common eye disease worldwide. Cataracts form when there is a buildup of protein in the lens, and when they are not treated in time, it may lead to blindness. This disease often develops at an old age, as the lens ages, if you have high myopia, long exposure to sunlight, diseases like diabetes or can sometimes be a genetic defect, which means you can get it at birth etc. In Hong Kong, more than 50,000 patients are on waiting lists for cataract operations at Hospital Authority hospitals alone, which the average time for waiting can last up to two to five years.
Stevie Wonder’s Disability; Blindness “Do you know, it’s funny, but I never thought of being blind as a disadvantage” (Gigliotti 103). He inspired and influenced several people to chase their dreams disability or not. Also, Wonder’s music addressed issues in the world like racism and hunger. Stevie Wonder changed many views of what people with blindness could do.
For a better grasp of the condition of glaucoma, it is a prerequisite to being aware of what parts of the eye that involved. the optic nerve is the main organ engage and the main cause of glaucoma is a high pressure within the eye. Professor Richard F. Brubaker in the chapter glaucoma describing the causes of glaucoma states , “The normal flow of aqueous is from the posterior chamber to the anterior chamber through the pupil. Aqueous must squeeze between the lens and iris to enter the pupil” (p.110).Thus, that circulation is made possible by the angle that forms the lens and iris the fluid flows throughout a tissue, they called the trabecular meshwork which considers as the drain of the eye. When this drain is clogged aqueous cannot leave the eye, causing the fluid to back up, the backed up fluid causes increase pressure to build up within the eye that causes
It is a de-generative disease of the brain that leads to a condition called dementia” (in-text citation for a journal).
You finally invested in a new Blu Ray player and you picked up some cheap copies of your favorite television series. And now you 're ready to binge watch on your day off. However, you need to make sure you 're following these guidelines when binge watching to keep it healthy. Eating Healthy Snacks
Legend has it that Eyebright Euphrasia received the Latin name from the Greek migrate Euphrosyini (whose name means joy) because he treated everyone, since it treated eyes. Among people it is also called "the eye of the Mother of God" and "Vidovic" because of the centuries-old tradition confirmed that the ideal natural cure for diseases of the eyes. People use it for thousands of years. Alchemist Arnoldus Villanovanus devoted his eulogy "Vini Euphrasiati tantopere celebrate", saying that the sight back to those who have long been without him.