Posts Tagged ‘cornea’

Everything About LASIK Surgery

The most popular eye surgery today is LASIK surgery. It is efficient, fast, very gentle and with few complications. For most people the LASIK surgery can help them no matter if they are nearsighted, farsighted and have astigmatism.

LASIK technique is a further development of the older PRK laser surgery. Both operations are done by removing the outer cornea layer, so the laser can remove the tissue. The difference is that while the PRK eye surgery scrapes the outer layer of the cornea away, the LASIK surgery will cut a flap in the cornea that can bend. After the surgery the flap will be put back again.

The operation itself takes only a few minutes and is completely painless. The eye will be anaesthetized right before the surgery, and most people will not feel any pain at all. Subsequently the flap will be cut and the laser surgery can be made.

The actual operation only takes between 30 seconds and two minutes. A laser specially designed for operating in the eye’s sensitive tissues will be used. After the operation the flap is put back in place.

It is possible to leave the operating room right after the surgery. The eyes may sting a little bit, so it is advised to rest for the rest of the day. A nap can also help.

For most people the sight will have improved right after the operation. It will then stabilize over the next weeks.

After the eye surgery the eyes can feel a little dry. It is therefore recommended to drip them with a little salt water.

All studies indicate that a permanent sight improvement is provided by the LASIK operation. And previous bad eyesight will not return again. But a possible, natural change of sight in the future is not possible to prevent by the operation. So the surgery should not be done before the sight is stable.

The age-related long-sightedness that all people will experience can also not be prevented by a LASIK operation.

Martin Elmer is writing about eye surgery in Laserbehandling. You can read about LASIK, LASEK, LASEK, Wavefront and Aspheric treatment in Lasek operation.

Article Source:http://www.articlesbase.com/vision-articles/everything-about-lasik-surgery-1575230.html

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Lasik eye surgery

LASIK stands for Laser in situ Keratomileusis and it is a treatment that reshapes the cornea in order to produce clear vision. The LASIK refractive eye surgery procedure can treat myopia (nearsightedness), hyperopia (farsightedness or longsightedness) often when the eyeball is too short or when the lens cannot become round enough, and astigmatism (a common condition where the cornea is not perfectly spherical, can be treated with eyeglasses, contact lenses, or laser eye surgery).

If you are interested in LASIK, an eye surgeon or ophthalmologist can determine. Here I foundef  Free Lasik Evaluation

LASIK can be very successful when performed on the right patients, but it is not for everyone, LASIK patients should be at least 18 years old, demonstrate no change in refraction for at least one year, and have realistic expectations regarding the results of LASIK eye surgery. Patients who have experienced an eye infection or injury in the past year should not undergo LASIK. Have sufficient corneal thickness (the cornea is the trans-parent front part of the eye). A LASIK patient should have a cornea that is thick enough to allow the surgeon to safe-ly create a clean corneal flap of appropriate depth. The average LASIK surgery costs $499 to $2,500 per eye. Patients may pay for LASIK costs with cash, check, or credit card. Many doctors also offer LASIK financing to help cover the LASIK surgery cost.

LASIK is usually safe, the success rate for LASIK averages above 95 percent for most experienced LASIK surgeons. The LASIK procedure is typically near-painless because of the minimal amount of tissue affected.

Stacy is professional researcher and now a days doing research on medical education in USA. she is co-author and administrator of Medical Schools Sacramento: an informative blog about medical institutions of Sacramento

Article Source:http://www.articlesbase.com/vision-articles/lasik-eye-surgery-1559807.html

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Contact Lenses—to wear or not to wear

Contact lenses were invented by a German oculist, A.E. Fick, as early as in 1887 and were given the name of contact then. However, it hasn’t become popular until 1930s. The first generation contact lenses were made of glass which was easily broken and dangerous for people’s eyes. Contact lenses become more and more popular since keratoscope were invented. Nowadays, more and more people choose to wear contact lenses rather than the tradition glasses. Are contact lenses comfortable and good for people’s eyes? Is everyone capable to wear contact lenses?

 

The advantages of contact lenses count for the popularity of them. People tend to wear contact lenses when they are having sports or having fun. Contact lenses bring freedom for eyes. One can does his business without any restriction. In addition, the things are seen more like the real ones through the contact lenses. What’s more, many girls choose contact lenses in order to make their eyes look bigger and sharper.

 

Despite of those truths, contact lenses are not suitable for everyone. The people with diseases in cornea can not wear contact lenses. Teenagers are advised not to wear contact lenses because of their incomplete developed eyes. The olds are not fit for contact lenses concerning the health of eyes. In addiction, soft contact lenses are somewhat foreign objects to eyes. They may be uncomfortable for some people. In order to keep healthy, people need to clear lenses regularly. People who can not stick on the clear keep habit are not the ideal users of soft lenses. Overuse of lenses can also lead to eyes’ tiredness. People in the environment of dusts and polluted air can not wear contact lenses either.

  

One should think carefully before he chooses contact lenses, and receive a careful check from Ophthalmology clinic. And even for ones who are fit to soft lenses, they can’t wear contact lenses all the time or the entire place. Health of eyes is more important than one’s appearance.

 

Article Source:http://www.articlesbase.com/vision-articles/contact-lensesto-wear-or-not-to-wear-1558866.html

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Refractive Eye Surgery

Any surgery that is performed for the improvement of the refractive state of the eye is called refractive eye surgery. The common objective of all refractive eye surgeries is to eliminate the need of wearing corrective eye glasses or lenses on the part of the patient.

Some common visual disorders that can be cured with refractive eye surgery include myopia and astigmatism. Due to the high prevalence of such eye diseases, a very high number of refractive eye surgeries are regularly performed in the United States and other parts of the world.    

Methods of Refractive Eye Surgery
The process of this type of surgery involves remodeling the cornea of the eye. The most common technique in use these days involves an excimer lasers for reshaping of the curvature of the cornea. Some of the common methods of refractive eye surgery include:

* Flap Procedures: A blade called microkeratome is used in these surgeries to cut a flap of corneal tissue. Lasik or Laser Assisted In-Situ Keratomileusis is the most common example of this procedure which uses an excimer laser to target the desired tissue.

* Surface Procedures: Some common surgeries performed under this method include Photrefractive Keratectomy (PRK) and Laser Assisted Sub-Epithelium Keratomileusis (LASEK). These surgeries also involve the use of laser, however they do not require making a cut into the stroma of the eye.
* Corneal Incision Procedures: Radial Keratotomy (RK) is an example of surgery using this method. In this method a diamond knife is used for correcting the shape of the cornea. This surgery is used to common problems of eye such as myopia and astigmatism are cured. However, this method is mostly being replaced by methods which use an excimer laser.

Precautions and Risks in Refractive Eye Surgery
It’s true that refractive eye surgery is a modern and efficient method of correcting vision defects, however it is not suitable for every one. If you are a victim of common diseases such as diabetes or glaucoma then the refractive surgery would not be suitable for you. You should also avoid this type of surgery if you are a pregnant or have certain eye diseases involving retina or cornea defects.

Laser Eye Center of Silicon Valley is one of the finest centers for eye surgery in the United States. The center offers a number of refractive surgical procedures for eliminating the need for glasses and contact lenses.

Welcome to Laser Eye Center of Silicon Valley, one of the finest refractive eye surgery centers in California.

Article Source:http://www.articlesbase.com/vision-articles/refractive-eye-surgery-1554826.html

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Eyes Vision Surgery

Our eyes are one of our most precious resources and taking care of them is vitally important as they have to serve us right from birth all through our earthly stay.  Knowledge about eyes vision will help us gain a better understanding of the eye problems that occur and the corrective surgery that is available today, thanks to the enormous strides medical science has made.  Read all about the various problems and solutions in this article.

Astigmatism is an optical defect whereby your vision is blurry because of the inability of the eye to bring an object into sharply focused image on the retina; irregular curvature of the cornea or lens causes this eyes vision problem.  Astigmatic Keratotomy is a procedure that is performed to reduce the extent of astigmatism by reshaping your cornea from its original oval shape into a spherical shape. Anyone with a minimal or moderate degree of astigmatism who has had a stable prescription for a year at least and who does not have any serious vision problems can undergo this procedure to do away with the need for contacts or glasses.

INTACS is a procedure that is performed to reduce myopia and is an alternative to laser surgery. Tiny prescription inserts of plastic polymer are implanted in the outer edge of the cornea through surgery and they work by flattening the cornea to produce better focus and sharper vision.  The advantages to this type of procedure are that the inserts can be removed; flexibility to make prescription changes when needed; no tissue removal and zero maintenance costs.

Lasik eye surgery has become over the years the most popular refractive laser surgery to correct eyes vision.   A laser is used to change the cornea’s shape to correct the refractive error and the advantage to this system of correcting nearsightedness or farsightedness, even astigmatism is a permanent procedure.

Use the information contained in this article to better understand and correct your eyes vision problems successfully.

Jacko has been writing articles online for nearly 2 years now. Not only does this author specialize in diet, fitness and health, you can also check out his latest website on Acuvue Advance Astigmatism which reviews and lists the best Acuvue Contact Lens and Acuvue Oasys Contact Lenses for your eyes.

Article Source:http://www.articlesbase.com/vision-articles/eyes-vision-surgery-1529130.html

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