Because of advances in laser eye surgery for astigmatism, though correction has been available with eyeglasses, contact lenses, or refractive surgery; the laser has brought a whole new dimension to the surgery technique. Astigmatism is a misshapen cornea. The cornea is a clear covering over the front of the eyeball. The normal shape of the cornea is round like a basketball. When the cornea is oblong shaped (like a football), that is abnormal. This shape makes seeing things clearly very difficult. When light rays enter the person's eye, they scatter. For a regular shaped cornea, the light focuses in on a single point; the one the person wants to see. For those with this anomaly, it is quite annoying to have a visual occlusion that distorts vision. This eye condition develops in different shapes and types. With the regular type, the middle points of the vertical and horizontal axis of the cornea at are located 180 degrees from one another. Laser eye surgery for astigmatism could be the solution for this malady. "And Jonadab said unto him, Lay thee down on thy bed, and make thyself sick: and when thy father cometh to see thee, say unto him, I pray thee, let my sister Tamar come, and give me meat, and dress the meat in my sight, that I may see it, and eat it at her hand." (2 Samuel 13:5)
In irregular astigmatism, the two meridians may be located at something other than 180 degrees apart; or more than two meridians are present. Regular astigmatism is generally easy to correct, but irregular astigmatism can be quite complex. In most cases, the irregularities are more difficult to correct. This, of course, depends upon the extent of the irregularity and its cause; in the first place. At times, the aberration is so distorted, that the only answer is surgery. Astigmatism is also known as a refractive aberration or error. Often people end up going in for laser eye surgery for astigmatism, when the symptoms of eyestrain, fatigue, headaches, and blurred vision at all distances are finally diagnosed as eye related. The process necessary to correct the error is to reshape the cornea. With both glasses and contact lenses, this is done by way of a simple mathematical calculation that puts the curve correction into the glass or contact lens. But, laser eye surgery for astigmatism is very exact and permanent fix to this condition.
2,523 children took part in an astigmatism study. This is a common condition in children that often disappears into adulthood. Nearly 1/3 of them suffered undiagnosed. Children are less likely to complain about vision problems, than adults. Blurred or distorted vision may, in fact, be confused for a learning disability or other medical or psychological condition. Because the aberration digresses as adulthood approaches, in some children, this condition is often thought of as developmental. When the condition doesn't go away, that is when a person might be faced with laser eye surgery for astigmatism. For people who were not born with astigmatism, problems often comes from an injury, a surgery or keratoconus. These organs of sight are very delicate. Most people don't consider how fragile they are until something happens to their eyes or to their sight. When people play sports, they are particularly susceptible to accidents involving the eyes. Car accidents, falls, and biking accidents may cause an injury to a person's eyes. Everyone has a flight or fight response that compels them to action when in danger; that includes things like possible injury. People instinctively turn their heads, duck, or cover their heads when something in headed in their direction; that could pose harm. Injury to the eye can cause vision limitations of all types. In particular, injury to the eye can cause the distortion of the cornea.
Another way the cornea can get distorted, if a person was not born with this problem, is surgery on the eyes. Laser eye surgery for astigmatism is then used to correct the problem caused by the surgery. Keratoconus, which causes a gradual thinning and bulging of the cornea. The cornea morphs from a regular round shape into a cone-like shape. When light enters the cornea, headed toward the retina, it is deflected causing distorted vision. One or both eyes can be affected by keratoconus. A person with this eye disorder is not usually a candidate for laser eye surgery for astigmatism. Keratoconus usually develops very so slowly. The person keeps going back to the ophthalmologist and he or she keeps changing the prescription for glasses or contacts. Because keratoconus can be so difficult to detect, it may often be overlooked by the ophthalmologist and may go undiagnosed for a long period of time. As the cornea becomes more cone-shaped, the person notices progressive nearsightedness along with additional problems that cause blurred and distorted vision before the condition is finally diagnosed.
Astigmatism tends to worsen with age. Specialists believe that uneven use of the eyes (such as close up work), a diet the excludes sufficient vitamins and minerals (junk food especially), and heredity play the biggest role in the progression of this eye condition. But, in some cases, there is simply no explanation whatsoever. The great news is, this condition is not fatal. When faced with most eye conditions, a person may have an option of glasses, contact lenses, or surgery. Both glasses and contact lenses can be cumbersome. They are also an ongoing life expense. Laser eye surgery for astigmatism has proven to be a safe and effective solution; and once done, it's done.
In irregular astigmatism, the two meridians may be located at something other than 180 degrees apart; or more than two meridians are present. Regular astigmatism is generally easy to correct, but irregular astigmatism can be quite complex. In most cases, the irregularities are more difficult to correct. This, of course, depends upon the extent of the irregularity and its cause; in the first place. At times, the aberration is so distorted, that the only answer is surgery. Astigmatism is also known as a refractive aberration or error. Often people end up going in for laser eye surgery for astigmatism, when the symptoms of eyestrain, fatigue, headaches, and blurred vision at all distances are finally diagnosed as eye related. The process necessary to correct the error is to reshape the cornea. With both glasses and contact lenses, this is done by way of a simple mathematical calculation that puts the curve correction into the glass or contact lens. But, laser eye surgery for astigmatism is very exact and permanent fix to this condition.
2,523 children took part in an astigmatism study. This is a common condition in children that often disappears into adulthood. Nearly 1/3 of them suffered undiagnosed. Children are less likely to complain about vision problems, than adults. Blurred or distorted vision may, in fact, be confused for a learning disability or other medical or psychological condition. Because the aberration digresses as adulthood approaches, in some children, this condition is often thought of as developmental. When the condition doesn't go away, that is when a person might be faced with laser eye surgery for astigmatism. For people who were not born with astigmatism, problems often comes from an injury, a surgery or keratoconus. These organs of sight are very delicate. Most people don't consider how fragile they are until something happens to their eyes or to their sight. When people play sports, they are particularly susceptible to accidents involving the eyes. Car accidents, falls, and biking accidents may cause an injury to a person's eyes. Everyone has a flight or fight response that compels them to action when in danger; that includes things like possible injury. People instinctively turn their heads, duck, or cover their heads when something in headed in their direction; that could pose harm. Injury to the eye can cause vision limitations of all types. In particular, injury to the eye can cause the distortion of the cornea.
Another way the cornea can get distorted, if a person was not born with this problem, is surgery on the eyes. Laser eye surgery for astigmatism is then used to correct the problem caused by the surgery. Keratoconus, which causes a gradual thinning and bulging of the cornea. The cornea morphs from a regular round shape into a cone-like shape. When light enters the cornea, headed toward the retina, it is deflected causing distorted vision. One or both eyes can be affected by keratoconus. A person with this eye disorder is not usually a candidate for laser eye surgery for astigmatism. Keratoconus usually develops very so slowly. The person keeps going back to the ophthalmologist and he or she keeps changing the prescription for glasses or contacts. Because keratoconus can be so difficult to detect, it may often be overlooked by the ophthalmologist and may go undiagnosed for a long period of time. As the cornea becomes more cone-shaped, the person notices progressive nearsightedness along with additional problems that cause blurred and distorted vision before the condition is finally diagnosed.
Astigmatism tends to worsen with age. Specialists believe that uneven use of the eyes (such as close up work), a diet the excludes sufficient vitamins and minerals (junk food especially), and heredity play the biggest role in the progression of this eye condition. But, in some cases, there is simply no explanation whatsoever. The great news is, this condition is not fatal. When faced with most eye conditions, a person may have an option of glasses, contact lenses, or surgery. Both glasses and contact lenses can be cumbersome. They are also an ongoing life expense. Laser eye surgery for astigmatism has proven to be a safe and effective solution; and once done, it's done.
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