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Hypertension &ocular disease
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Glaucoma is an eye disorder that causes damage to the optic nerve, this nerve plays a very important part in the way we carry images from the retina to our brain, so we have vision. Glaucoma has a nickname “the sneak thief of sight,” because this disease gradually worsens over a period of time and the person cannot tell their vision is going until it is too far advanced. As a result, it is the second leading cause of blindness in the world, especially in older generations. This disorder is typically caused by an elevation of eye pressure, which damages the nerve fibers of the optic nerve. As this progresses a number of nerve fibers are damaged, blind spots occur, and glaucoma becomes permanent. In other cases poor blood circulation in the optic nerves can result to glaucoma. There are procedures to follow when in danger for glaucoma, this can happen to anyone, when in doubt people should go to their ophthalmologist and get treated for glaucoma right away in varies ways depending on the type of glaucoma.
There are three different types of glaucoma, the most common glaucoma is the open angle, or chronic glaucoma. The open drainage angle of the eye can become blocked leading to an increase of eye pressure. The optic nerve damage and vision loss occurs slowly and painlessly making this disease the worse to handle because the person has no idea they have open angle glaucoma until the optic nerve is to badly damage for any treatment. The second type of glaucoma is the angle closed, which happens when drainage angle of the eye becomes narrow and completely blocked. When the eye suddenly becomes blocked completely, the pressure builds up known as acute angle-closure. When drainage angle of eye becomes completely blocked and pressure eleva...
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...he drainage area for the eye fluid to exit the eye which will decreases the eye pressure, and prevent complication or progression of optic nerve damage.
Ultimate, glaucoma can be a very serious and a chronic disorder that needs to be taken care of right away as soon as something is unusual about the a person’s vision because once vision loss there’s no way to regain eye sight. The best way to do this is to get the eyes checked every so often before something goes wrong. Without eye sight, life itself will be unrealistic and people will struggle trying to explore new opportunities. Over 2.2 million Americans have glaucoma and only half of those know it. In the United States itself, more than 120,000 people are blind from glaucoma. This eye disorder is nothing to sit around and wait for the condition to improve on it’s on because in the end a person will end up blind.
The EyePrim device is also very quick, painless and reliable which allows sampling of conjuctival cells which allows further analysis of those cells for markers of dry eyes.
Optometrists have accepted vision therapy, which is a medical treatment for optical muscle disabilities, as a feasible treatment used for eye related problems; claiming the treatment can strengthen vision and give the patient the opportunity to understand visuals quicker and clearer (Press). Vision therapy originated in the 1950s and over the past 25 years, has gained popularity, mainly because of new technological innovations in the field of treatment. Generally, vision therapy is prescribed as a measure mainly for people between the ages of 3 and 18. With the results from a comprehensive series of eye tests, the optometrist can work with the patient using special instruments—prisms, filters, occluders, and eye lenses—and strengthen the eye muscles, thus improving sight. According to optometrists in favor of vision therapy, these methods of treatment using these instruments function as safer routes to repair eye disabilities. Although vision therapy can yield favorable results, the practice as a treatment for innate eye disabilities has been in hot debate lately; as it can exceed $8000 and insurance companies do not cover the treatment. For decades, insurance companies have refused to accept vision therapy as a legitimate method for repairing eyesight (Boink). Concomitant with lack of insurance, the cost for a full treatment can exceed $8000, and doctors cannot guarantee a successful outcome. Recently, parents of children with eye related disabilities, such as amblyopia (lazy eye) and strabismus (cross-eye), and doctors have attempted to cooperate with public schools to allow families access to school-funded doctors to practice vision therapy. With a tight budget, most schools cannot afford to supply vision therapy, and a...
There are three parts to the eye exam, the visual acuity exam. This test uses an eye chart to measure how good you can see an object details or the shape of an object at a far distance. 20/20 is the perfect visual acuity and if you 're legally blind than its worse than or equal to 20/200 in both eyes. The second exam is called the slit lamp exam which is a type of microscope that is used to examine the front part of the eye,, that includes the eyelids, conjunctiva, sclera, cornea, iris, anterior chamber, the lens, and part of the retina and optic nerve. The third exam is called dilated exam. Dilated exam is when drops are placed in the eyes to widen or dilate the pupil to enable your eye M.D. to examine the retina and optic nerve for signs of damage (“Diabetic Retinopathy
Glaucoma is a disease of the eye and it is fluid pressure within the eye rises and if the eye is left untreated the patient might lose vision or maybe even blind. But this disease is generally affects both eyes but although one of their eyes may have more severe signs or symptoms then the other eye. When you have glaucoma there are small spaces in the front of the eye and they are called anterior chamber. There is clear liquid that flows in and out of the anterior chamber and the fluid nourishes and bathes nearby the tissues. And if the patient has glaucoma the fluid dose not drain like it should drain but the fluid drains out of the eye. And this may lead to fluid build up and pressure inside the rises of the eye. Unless the pressure is brought down and controlled and the optic nerves and some of the other parts of the eye might become damaged leading to ...
Vision loss from glaucoma is permanent but can be prevented with early detection and treatment. Since the symptoms of the disease are usually unnoticeable, regular eye examination are important especially for persons over the age of 35 and those in high risk group.
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...
Imagine a researcher requesting you to copy a picture. It's a simple task. You move your instrument of illustration across a sheet of blank paper with ease, glancing from the given picture to your own sketch in progress. When you are finished you observe a satisfactory replica and feel a sense of accomplishment and proficiency with the similarity you have achieved between picture and sketch. Then the researcher queries whether you can tell him what you have drawn. You search the interconnected lines, the edges, and the shapes of your sketch but cannot answer what the picture represents. Finally, an explanation is given. You have just drawn a house- a simple triangle resting on top of a square. Your sense of accomplishment is quickly replaced with a feeling of despair.
This is a representation of the eye's lens system. This eye has no eye condition, such as nearsightedness or farsightedness, and the lens is drawn in its relaxed position. The light rays are focused appropriately on the retina. The thickness of the cornea is 0.449 mm, the distance from the cornea to the lens is 2.
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.
can block fluids from draining, increasing pressure in the eye. Early detection can lead to treatment that
Therefore, it's vital to educate yourself about the symptoms and risk factors so that you can take the proper steps to protect your vision. If you've already been diagnosed with glaucoma, you'll need to develop a better understanding of this medical condition so that you can manage it more effectively. What Is Glaucoma? Glaucoma is a non-reversible eye disease that directly affects the optic nerve.
The eye it also helps at the same time by spreading lubricates over the eyeballs.
Macular degeneration in general can affect many people in minor or drastic ways. People who experience this form often complain of vision loss when they are in dim light, especially when they are reading. The "dry" type is often characterized by a more gradual loss of vision compared to the "wet" type. Signs of this disease include an increase in drusen, which is an accumulation of a yellow-white substance, in the underside of the macular retina. A loss of cells can be seen in the macula. The macula is our sensitive sight region, where intricate detail can be seen. Thus, vision in this area is helpful and necessary to drive, read, focus on small details, and recognize familiar faces. The macula is located in the back of the eye known as the retina. The macula is only about 5 mm in diameter, and includes the fovea, which gives us our detailed central vision. If a person suffers from the "dry" form in one eye they will be more likely to develop it in the other eye as well.
However, there are certain types of treatment that are very effective to stop the speed of this disorder. One of the treatment is currently done is the vascular endothelial growth factor (VEGF). According to Waldstein et al. (2016), the most common and effective clinical treatment for wet Age-related Macular Degeneration is VEGF therapy. This type of treatment is extremely effective at preserving visual function in choroidal neovascularization and has become the leading treatment approach in neovascular age-related macular degeneration. There are some other treatments that may be done also like the laser treatment which may be able to arrest or slow the disease’s progression. The technique known as photocoagulation uses a high-energy laser beam to seal off or destroy the abnormal blood vessels; it also burns out some adjacent healthy tissue, thereby causing a degree of vision loss (hopefully less than would have occurred if the AMD were allowed to progress). According to Fernandez et al. (2015), another approach of treatment for aged macular degeneration is the photodynamic therapy, which involves less damage to healthy tissue. This treatment also uses a lower-power laser, and the patient is first given a light-sensitizing drug, which seals off the leaky vessels when exposed to the laser. Both techniques often fail, and even when they succeed, blood vessel proliferation may later recur. Surgical removal of the macular degeneration scar may be an option in some
This protects the eye from becoming dry.The Cornea, a part of the sclera, is the transparent window of the eye through which light passes. The focusing of the light begins in the cornea.Behind the Cornea is a watery fluid called the aqueous humor. This fluid fills a curved, crescent shaped space, thick in the center and thinner toward the edges. The cornea and the aqueous humor together make an outer lens that refracts, or bends, light and dire...