Posts Tagged ‘cornea’

Laser Vision Correction

If you dream of freedom from glasses or contact lenses laser vision correction may be the solution for you. LASIK is the most well-known vision correction procedure, but there are several other types of laser vision correction. By reshaping your cornea, your ophthalmologist can correct nearsightedness, farsightedness, and astigmatism, giving you clear vision without the hassle of corrective lenses.

Refractive Error

Nearsightedness (myopia), farsightedness (hyperopia), and astigmatism are all forms of refractive error. Your cornea bends, or refracts, light to focus on the retina. When your cornea is misshapen the light does not focus properly. Refractive surgery reshapes your cornea, correcting how the light is bent and therefore correcting the focus of the light on the retina.

Types of Laser Vision Correction

You have probably heard of LASIK, but might not be aware that there are two types of LASIK, traditional and custom, and that there are several other forms of laser vision correction including:

  • Epi-LASIK
  • iLASIK
  • LASEK
  • InterLase
  • PRK

All are performed using an excimer laser. The technique is different for each type of laser surgery, making laser vision correction possible for people who are not good candidates for LASIK.

The Precision of Today’s Laser Vision Correction

Refractive surgery is not new, but it is being constantly improved. Traditional LASIK has been used to safely and effectively correct vision for over twenty years. Custom LASIK is far more precise, and can give you even clearer vision.

In custom LASIK, Wavefront technology is used to map your eyes and guide the laser. Wavefront is also used to guide other types of laser vision correction. Wavefront diagnosis helps your ophthalmologist determine which type of laser surgery is right for you, and can detect high order aberrations that can be made worse by LASIK surgery.

Improving Your Vision and Your Life

Laser vision correction can mean freedom from corrective lenses for many patients. Those with very poor vision can achieve better corrected vision. Improving your eyesight can open up opportunities that you never had before. It may simply make things like swimming and other hobbies easier and more fun. For some, it can make essential activities, such as driving, possible. Getting rid of your glasses or contacts means waking up each morning with clear vision and never again having to worry about losing or damaging your lenses. To learn more about laser vision correction and what you can do to improve your vision please visit eyes.com today.

To learn more about laser vision correction and what you can do to improve your vision please visit Eyes.com today.

Article Source:http://www.articlesbase.com/vision-articles/laser-vision-correction-1600068.html

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Myopia

Myopia is commonly known as nearsightedness. It means you have difficulty seeing things that are far away. With myopia you can see clearly up close unless you have another condition that affects your close vision, such as presbiopia or astigmatism. Most myopia begins in childhood, but some factors can cause myopia to develop later in life. In adults, myopia can be corrected with laser eye surgery including LASIK.

Myopia and Your Cornea

Your cornea bends light as it enters your eye. A properly shaped cornea focuses that light on the retina. If you are nearsighted your cornea is either too curved or your eye is too long, causing the light to focus in front of the retina. When the light reaches your retina it has started to spread out again and the image is blurry.

Eyeglasses for nearsightedness have concave lenses. This spreads out the light before it reaches the cornea, so it travels farther back in the eye before it is focused.

Laser vision correction reshapes the cornea so it can focus the light properly on the retina.

What Causes Myopia?

Nearsightedness is the most common of all vision problems and affects about 30% of Americans. In the last few decades it has become more common throughout the world. The causes of myopia are uncertain, and the subject has become quite controversial.

Heredity seems to play a large role. Children of myopic parents are more likely to be nearsighted.

Lifestyle may contribute to myopia, as well. Long periods of close work, such as reading, looking at the computer screen, and possibly even watching television, may affect how a child’s eyeball develops as they grow.

It is also believed that a diet high in simple carbohydrates increases your chance of developing myopia, due to too much insulin circulating in the bloodstream (hyperinsulinemia). Hyperinsulinemia is also common in people with type II diabetes and insulin resistance. Late developing myopia is sometimes an early warning sign of diabetes risk and can eventually develop into cataracts.

Complications of Myopia

For most people myopia is an inconvenience, but relatively harmless and easily corrected with glasses or contact lenses. If corrective lenses are too much of a hassle, laser eye surgery is an option as well.

However, myopia can lead to more serious eye conditions, vision loss, and even blindness. People with myopia have an increased likelihood of developing glaucoma and retinal detachment.

Correcting Myopia

Typically, your eye doctor will prescribe glasses and/or contact lenses to correct your vision. Eye exercises can help improve your vision, especially when eye strain from close tasks such as long hours of computer use is a factor.

Laser vision correction can allow you to see clearly 24/7, without the hassle of wearing glasses or contacts.

If you are nearsighted and would like to learn more about improving your vision, please visit Eyes.com today and find out if you are a candidate for LASIK.

Article Source:http://www.articlesbase.com/vision-articles/myopia-1600072.html

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Dose LASIK Surgery Cost Much?

With the development of science and technology, eye disorders can be corrected by many ways, such as prescription eyeglasses, contact lens and LASIK surgery. Most people choose eyeglasses because of the low price. Some buy contacts for they want themselves to be good-looking. Maybe only a small part goes to have a LASIK surgery. It’s a little expensive from the direct view, but sometimes some things can’t be measured only by money. We must make a decision after considering every factor fully.

First, you should know the details of LASIK procedure, including its advantages and disadvantages and so on. At the same time, you should also be acquainted with other similar treatments so that you can make a comparison between them. After having a primary cognition, you can go to see your doctor. They will give you some advice on what to choose considering your eye condition and your ability to afford.

Most of the time, even you can’t afford the operation, your private health insurance or government funded grants may help. Moreover, many clinics allow you not to pay for the treatment in one time if you actually have difficulties in finance.

Does LASIK surgery cost much? I don’t think so. If you wear glasses or contact lens, you must change it every month or every year. The cost added up together may not be lower than LASIK, not to mention its long term benefits. Moreover, glasses influence your appearance and contact lens fray your cornea, while LASIK surgery can achieve the correction by only one operation.

The most important factor is you can do everything expediently after surgery. You wouldn’t see your friends’ face unclearly without glasses when they say hi to you. You don’t have to worry that you sleep with contact lens on.

With the knowledge of LASIK, you now may have a certain answer about which method you choose to improve your eyesight. Have a good luck?

reference

·How much should One Pay for Laser Surgery?

Firmoo.com is the emerging online optical store selling high quality eyewear, such as prescription eyeglasses (single vision myopic glasses, reading glasses, bifocal and progressive eyeglasses etc.,), prescription sunglasses (with RX tinted lenses), prescription sports goggles. Firmoo guarantees lowest possible price in the market. Firmoo’s return and refund policy makes any purchase risk-free ones.

Article Source:http://www.articlesbase.com/vision-articles/dose-lasik-surgery-cost-much-1591184.html

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I Can See Clearly Now: A Guide to Laser Eye Treatment

Once upon a time, the visually impaired had to rely on glasses or contact lenses to see clearly. In the last few decades, however, laser eye correction procedures have restored millions of people’s vision to its former glory.

When ‘laser-assisted in situ keratomileusis’ (LASIK) was developed initially, the laser treatment was primarily intended for those with a specific medial condition, rather than for those simply seeking to avoid the hassles of wearing glasses or contact lenses. Furthermore, in scenarios where the treatment was available to the wider public, the cost precluded most people from venturing down the laser treatment route.

In recent years, however, laser eye surgery has come down significantly in price and is far more widely available than it once was. Furthermore, it isn’t restricted to those with medical conditions – anyone who simply wants to return to perfect 20:20 vision can be considered for it, assuming they are approved for treatment during the consultation period, of course.

In a nutshell, laser eye surgery succeeds by reshaping the cornea in the eye. By changing its form, the path of light through the eye to the retina is altered too, thus replicating the effect that glasses and contact lenses have on the eyes.

The success rate or surgery is good too, with the vast majority of patients enjoying greatly improved vision after treatment. Not everyone will be restored to 20:20 vision – indeed, some people may still have to wear glasses or contacts on occasion. The degree to which surgery helps a person’s vision will depend on the extent of their existing impairment, whilst age is a contributing factor too.

Furthermore, the laser correction process is more or less painless. There may be a slight irritation for a short period in some cases, but laser eye treatment on the whole won’t cause too many problems.

The great thing about laser eye surgery is that its benefits are noticeable more or less instantaneously. So the journey from squinting at the television to enjoying crystal-clear vision on the widescreen plasma can be as little as 24 hours.

Anyone who says that wearing glasses or contact lenses isn’t that much of a hassle may have a good point, but they probably have 20:20 vision themselves.

Indeed, life through a pair of manmade lenses isn’t difficult to adapt to, but there are many little annoyances that go with the territory that makes laser eye treatment all the more appealing. No more smudging, no more messing around with contact lens solution and, importantly, no more squinting at the television when you accidentally leave your glasses on the bus!

Adam Singleton writes for a digital marketing agency. This article has been commissioned by a client of said agency. This article is not designed to promote, but should be considered professional content.

Article Source:http://www.articlesbase.com/vision-articles/i-can-see-clearly-now-a-guide-to-laser-eye-treatment-1588604.html

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The History of Laser Eye Surgery

Laser eye surgery is one of the most valuable medical developments of our lifetime. It has given ophthalmologists a tool to improve sight and in most cases eliminate the need for glasses for good.

Since the new technique was perfected in the late 1980s it has transformed thousands of lives and continues to grow in popularity. This highly specialised procedure allows surgeons to reshape the eye’s cornea correcting the faults that cause blurring of vision. The treatment can be used to correct both Myopia (nearsightedness) and Hyperopia (farsightedness) so the days when thick glasses or contact lenses were the only option to see clearly are gone.

The idea of laser eye surgery has been around since the 1950s and was the result of several different doctors who all played a part in the advance of the procedure. The technique was initially the innovation of Jose Barraquer, a Spanish ophthalmologist who first came up with the idea of cutting into the eye’s cornea to alter its shape.

Twenty years on, the radial keratotomy procedure was developed by the Russian doctor, Svyatoslav Fyodorov, who stumbled upon the important finding when he was treating a boy who had fallen and cut his eye on his glasses. Fyodorov discovered that by shaving off the front layer of the eye the young boy had recovered with better sight than before.

The development of the Excimer laser by a group of scientists from the University of California turned the eye surgery dream into a reality and, because of the inventiveness and dedication of these doctors, the first pioneering surgery was performed in 1989 in Greece. Since then the operation has become a common procedure performed around the globe.

Further developments to the procedure have resulted in two main types of laser eye surgery. Photorefractive Keratectomy, commonly known as PRK, a procedure carried out on the surface of the eye, and LASIK surgery, which differs because of the incision made to the surface of the eye and the laser treatment that is applied to the corneal tissue beneath.

Because of the delicate nature of an eye the operation needs to be performed with great care and, although the technology sounds complicated, in the hands of a qualified practitioner it is a relatively straightforward one. In general, the operation takes around 30 minutes although the actual laser treatment can take as little as a minute.

The technology and development of laser eye surgery has resulted in a simple painless procedure with a very quick recovery time. Today the surgery boasts a 95% success rate with most patients enjoying full 20/20 vision which is a testament to the brilliance of the doctors who invented the ground breaking operation.

Adam Singleton writes for a digital marketing agency. This article has been commissioned by a client of said agency. This article is not designed to promote, but should be considered professional content.

Article Source:http://www.articlesbase.com/vision-articles/the-history-of-laser-eye-surgery-1579939.html

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