Lasik Eye Surgery Procedure – Extremely Precise Vision Correction

May 10, 2011 by admin  
Filed under Non Fiction

anonymous asked:


The most commonly used refractive surgery procedure is the lasik eye surgery procedure and this is a very popular form of surgery that has the advantage of being less painful and resulting in a 20/20 vision in most cases, usually on the very next day.

The basic lasik surgery procedure involves an instrument which is known as a microkeratome which is used in the surgery to create a thin and round flap in the cornea. The surgeon will take the flap and fold it back so that it is not in the way and then takes away some corneal tissue that is underneath with the help of an excimer laser which uses cool ultraviolet light beams to exactly remove very small bits of tissue from the cornea in order to reform it.

Once the cornea is reformed into the correct shape it will work in an improved manner and focuses light into the eye as also onto the retina thereby getting the person to see clearly which will be better than what it was before the lasik eye procedure. Afterwards, the flap is replaced back in place and covers the area where the corneal tissue had been removed.

Corrects Nearsightedness, Farsightedness as well as Astigmatism

Lasik surgery procedure is helpful for nearsighted as well as farsighted people. In the case of nearsightedness the aim is to flatten the extra-steep cornea and with farsightedness, a steeper cornea is required. Excimer lasers are also used to rectify astigmatism through smoothening of the irregular cornea and getting it into a more normal shape and the lasik eye procedure will help to achieve this.

There are certain steps to follow before getting your lasik eye procedure performed and these include choosing a good surgeon, finding out whether you are the right person for this type of surgery as well as finding out whether you have any dry eye diseases which need to be treated and cleared prior to the lasik eye procedure.

There are different types of lasik eye procedures such as blade versus bladeless and also custom lasik or wavefront lasik procedures. The wavefront-guided lasik eye surgery procedure makes use of 3-dimensional measurements that figures out how the eye processes images and this is helpful for guiding the laser in reshaping the front portion of the eye that is called the cornea. The wavefront measurement of the lasik eye surgery procedure is extremely useful in extreme and precise individualized vision correction.



An Overview of Lasik Eye Surgery

June 25, 2009 by admin  
Filed under Health

Lina Lee asked:


Many people are talking about LASIK this and LASIK that, but you don’t understand what LASIK is? If you are wearing contact lenses or glasses, probably you might be interested in LASIK. LASIK is an acronym for Laser Assisted In Situ Keratomileusis. It is a type of eye surgery to reshape cornea and improve your visual acuity. With LASIK eye surgery, many people have achieved better vision without having to wear glasses or contact lenses.

LASIK eye surgery uses laser beams to remove the corneal tissue without disturbing nearby cells. Before that, a hinged corneal flap is created with microkeratome blade or laser (IntraLase method) and after the underlying corneal tissue has been removed, the corneal flap is repositioned. The flap will stick to the underlying cornea on its own and heals quickly. It is a painless procedure because the LASIK surgeon will use anesthetic eye drops to numb your eye. You may feel a little uncomfortable because your eyelids are secured with a small instrument to keep your eye wide open during the LASIK eye surgery.

LASIK eye surgery has been the most popular eye surgery these days because the cornea healing with LASIK procedure is faster and less painful than other eye surgeries, such as PRK (Photo Refractive Keratectomy). It has been performed on more than one million people in the world. In the United States, the practice of LASIK surgery is regulated by the U.S. Food and Drug Administration (FDA), including the approval of all medical devices used for the procedure, especially the lasers used for LASIK. However, FDS does not have the authority to set the price for LASIK, recommend any LASIK surgeons or clinics or laser centers or provide ratings of lasers approved for the LASIK procedure.

However, not every eye problems can be treated with LASIK eye surgery. LASIK eye surgery is for people with common vision problems as follows: – Nearsightedness (myopia)

People who are near-sighted are only able to clearly see things near them and things that are far away may seem blur to them. – Farsightedness (hyperopia)

People who are far-sighted cannot see near things clearly but able to see clearly things that are far away. – Astigmatism

People with astigmatism are difficult to see things clearly at any distance because of irregularities in the cornea or the lens of the eye.

It can also treat people with a combination of above problems, such as myopia and astigmatism or hyperopia and astigmatism.

LASIK cannot correct or prevent presbyopia, which is a type of vision problem in people at the age of 40 or older. This means that if you have had LASIK surgery, you still have to wear bifocal glasses when you already have presbyopia.

So, if you are really interested in LASIK to eliminate your dependence on glasses or contact lenses, consult with your doctor to determine if you are eligible for LASIK or not and make sure you know the risks and complications that LASIK eye surgery may cause. Comprehensive eye examinations, using a number of medical equipments will be taken and a few questions will be asked before you can undergo LASIK.