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Age-related macular degeneration research paper
Age-related macular degeneration research paper
Age-related macular degeneration research paper
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Age related macular degeneration (AMD) is the leading cause of blindness in people over the age of 50. Every ten years after the age of 50 the prevalence of this disease increases exponentially. Many different factors contribute to the development of AMD including genetic, environment, and metabolic functions. Aside from smoking, abnormal blood pressure, and an unhealthy diet low in fruits and vegetables, many more studies are concluding that similar inflammatory and oxidative processes seen in other age related diseases are also playing a key role in the development of AMD. This disease affects the central areas of the retina and choroid. In return central vision is impaired while peripheral vision is usually not lost. AMD is seen in two different forms, the earlier nonneovascular (dry) type and the more advanced neovascular (wet) type. Each form has its own specific pathology and unique characteristics that set them apart. Fatty, protein deposits called drusens may be the key risk factor in understanding dry AMD pathology, progression, and treatment. Once the more advanced wet AMD is diagnosed, pathology and treatment are targeted around the formation and destruction of abnormal blood vessels, characteristic of the wet AMD eye. The increasing prevalence of AMD has influenced more investigation into what factors can be modulated to prevent the onset or to stop the progression of AMD. Early diagnosis is very important because this is when an eye doctor can spot the early signs of the disease through ultrasound or angiography. This text will discuss the pathology of drusens and the role of inflammation and oxidation in the aged eye. By better understanding these processes more effective treatment approaches and preventive...
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...hew, Shane. "Age Related Macular Degeneration." Kerala Journal of Ophthamology: n. pag. Web.
13. Moore, Kathryn J., and Ira Tabas. "Macrophages in the Pathogenesis of
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Atherosclerosis." Cell 145.3 (2011): 341-355. Print.
14. Nicolosi, R. J. "Consumption of 2 and 4 egg yolks/d for 5 wk increases macular pigment concentrations in older adults with low macular pigment taking cholesterol-lowering statins." American Journal of Clinical Nutrition 90: 1272-1279. Web. 1 May 2014.
15. Sepici-Dincel, Aylin. "Choroidal Neovascular Membrane in Age-Related Macular Degeneration is Associated with Increased Interleukin-6." International Journal of Gerontology: 101-104. Web. 1 May 2014.
16. Wang, Yadong. "An Anti-angiogenic Reverse Thermal Gel as a Drug-Delivery System for Age-Related Wet Macular Degeneration." Macromolecular Bioscience: 464-469. Web. 1 May 2014.
In the end, regardless of the scientific methods that could be used to treat different diseases and more specifically retinal degeneration, many studies should be conducted determine the potential clinical application of photobiomodulation with NIR for treatment of different injuries and disorders.
The widespread involvement of Retinal Pigment Epithelium (RPE), flat (placoid) nature of the lesions and absence of overlying serous retinal detachment and minimal choroidal involvement lead Gass to conclude RPE was primary focus of inflammation.(1) ...
OCT is, highly accurate, non-invasive and has successfully documented tear film changes in response to punctal occlusion and cyclosporine therapy. [6, 7] OCT is less affected by the reflex tearing than traditional tear film assessments as it does not require any contact with the ocular surface or use of dyes. Recent ultra-high resolution OCT is able to create a map of epithelial irregularity and quantify it. This can accurately indicate the severity of the dryness and is useful for both diagnosis and monitoring during treatment.
The hair of the scalp is longer and more flexible, while the hair of the eyebrows tends to be short and stiff. Oval shaped hair shafts produce wavy hair, flat hair shafts create curly hair and hair shafts that are perfectly round create straight hair. There are also different types of melanin, a natural compound responsible for the production of color in the eyes, skin and hair. There is yellow, brown and black melanin, each produced by melanocytes located at the follicle base. With age, melanin production decreases, causing greying of hair. (Applegate & Saunders, 2001, pp
Saxena, Rohit, Diguijay Singh, and Praveen Vashist. “Glaucoma: An Emerging Peril.” Indian Journal of Community Medicine 38.3 (2013): 135-7: Proquest. Web. 7 Jan 2014.
Although Alzheimer’s disease appears to be the most common cause of dementia, “more than 50 conditions are associated with dementia, including degenerative ...
Imagine an eye disease so rare, it is more common in males and cannot be prevented. Coats disease is a disease that causes a gradual decrease in vision in mainly males. It can lead to retinal detachment and vision loss. Coats disease is a very rare disease that occurs mainly in males; however, it is not hereditary. There is treatment available that can possibly cure Coats but, that is only if it is caught early on. Most of the time, Coats is not diagnosed until later in life which in that case can lead to loss of vision. As I researched more about Coats disease, I hope to learn more about this eye disease to understand more about what my son is going through. The three main things that I will be researching and discussing about Coats will be the causes, diagnosis, and treatment. There is not a lot of research done on Coats due to it being so rare.
...t one has it. Many scientists hypothesize that there is an inflammatory response in the brain when there is an extensive B-42 amassing. To slow or stop this, scientists theorize that the use of anti-inflammatory drugs, such as aspirin, could delay the swelling in the brain. Also, as scientists have known that taking a multi-vitamin tablet each day is good for you, there has been recent research demonstrating that the use of antioxidants may protect neurons, not just the immune system and keeping the body healthy by providing vitamins and minerals. These special supplements protect the neurons from the effects of the accruing B-Amyloid that would likely cause the plaque that causes AD.
Robert, a 65 year-old male, has trouble reading fine detail, especially out of his central vision. He complains that his vision is blurred and that it is harder to see while operating a motor vehicle. In addition, sometimes objects appear wavy or crooked, which impairs his vision. His worst symptoms were that he occasionally lost the ability to distinguish between the features of familiar faces and he had a localized blind spot. Robert is not alone; many people suffer from symptoms related to loss and distortion of the visual field. He suffers from macular degeneration, the leading cause of decreased vision loss in the United States, especially for people over the age of 50 (Philippi, 2000).
My DRI of cholesterol was maxed at 300mg and my intake was 267mg. Still relatively high so could start consuming Oatmeal for breakfast in which reduces your low-density lipoprotein (LDL), the "bad" cholesterol. Also, I...
Introduction This assignment critically discusses dementia, a widespread disability among older adults today. It provides an introduction to dementia and analyses its prevalence in society. The various forms of dementia are elaborated with descriptions of dysfunctions and symptoms. Nursing Assessment and Interventions are provided in the further sections which discuss actions nurses should take while evaluating patients and treating them.
Glaucoma is a group of eye disorders that cause blindness by hurting the optic nerve, which is the large nerve that is responsible for vision. In glaucoma, the optic nerve damage is related to a change in the fluid pressure that circulates around the eyeball. In many cases, Glaucoma occurs when the eye's fluid pressure is high, but it can also occur when the pressure is measured as normal.
Hearing loss is often overlooked because our hearing is an invisible sense that is always expected to be in action. Yet, there are people everywhere that suffer from the effects of hearing loss. It is important to study and understand all aspects of the many different types and reasons for hearing loss. The loss of this particular sense can be socially debilitating. It can affect the communication skills of the person, not only in receiving information, but also in giving the correct response. This paper focuses primarily on hearing loss in the elderly. One thing that affects older individuals' communication is the difficulty they often experience when recognizing time compressed speech. Time compressed speech involves fast and unclear conversational speech. Many older listeners can detect the sound of the speech being spoken, but it is still unclear (Pichora-Fuller, 2000). In order to help with diagnosis and rehabilitation, we need to understand why speech is unclear even when it is audible. The answer to that question would also help in the development of hearing aids and other communication devices. Also, as we come to understand the reasoning behind this question and as we become more knowledgeable about what older adults can and cannot hear, we can better accommodate them in our day to day interactions.
The basic structural and functional units of an organism are cells. They are the smallest living units in the human body. Over time, cells begin to experience changes associated with the process of aging. These changes occur slowly at first, but progressing over time. Aging cells are more susceptible to an increase in cellular damage, which can lead to abnormal cell function. As a result, cell division and replication occurs at a slower rate or may not occur at all in some cells. All cells con...