The LASIK surgery is a new and better form of the old PRK surgery method. In both cases the outer cornea layer is removed, so the laser can operate directly at the tissue. But when performing a PRK surgery the outer layer is scraped away, while the LASIK operation more gently cuts a flap in the cornea. The flap can be bent, the laser operation performed and the flap is put back again.

It only takes a few minutes to perform the the surgery. The eye will be dripped with anesthetics and most people will not feel any pain at all. When the eye is anaesthetized the cut in the cornea can be made and the laser surgery can be done.

The actual laser treatment takes between 30 seconds and two minutes. A special laser called an Excimer laser will be used. It is specifically designed to operate in the eye’s sensitive tissues. Finally the corneal flap is put back again.

You can go home right after the operation. Because the eyes may sting a little bit, it is recommended to rest for the rest of the day; and maybe also take a nap.

Most people will already at that time feel that their sight has improved. Over the next weeks will stabilize.

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.

A LASIK laser treatment can also not prevent the age-related long-sightedness that all (even normally sighted people) will experience.

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

The main procedures in all lasik surgeries are the same. The eye doctor uses a particular type of laser-eximer which has a number of manufacturers – for instance Visx, Wavelight, Alcon, Bausch & Lomb, Nidek and others. However, there are a variety of different kinds of laser methods like conventional laser treatments, wave front-optimized treatments, and wave front-guided treatments.

The regular laser treatment is the most typically performed treatment used. The process is based on the power of the glasses currently worn by the patient. Specific parameters are used for the surgery for different patients. Though this is a very popular and commonly used surgical procedure, it has a couple possible side effects.

The wavefront optimized LASIK treatment is done with a new wavelight laser technology. Besides the vision problems that can be resolved with a conventional laser procedure, this one can help fix more excessive conditions. Corneal curvature and width can be measured with this. The laser is used in conjunction with the cornea area. It amazingly removes the typical problems of the conventional surgery.

Lastly, the a wave-front guided process is a final alternative. It is also known as Custom Lasik or Wave-front Lasik. It is pretty much the same as the conventional laser treatment, but has one exception. In this process severe irregularities in the optical system of a patient can be identified beforehand. It is done using specialized wavefront mapping.

Like all procedures, wave front guided Lasik has its share of possible problems as well. Over correction and under correction of your vision can be possible after surgery. Contacts may still be required. Your eye sight might end up to be worse. You could even lose your eye sight.

Regardless of these risks and complications, lasik surgery is still considered to be safe and widely performed for eye sight correction all over the world. For the most part, it permanently cures conditions like hyperopia, astigmatism and myopia. It ensures minimum hospital stay and is extremelyaffordable from the patient’s side. In most cases, a single surgery will provide a permanent eyesight cure.

There are a couple other things that you should know if you opt for lasik surgery: Your refractive error, treatment options, type of laser prescribed and reason for your selected procedure. Memorize your corneal shape and curvature, career issues, vision stability, age, corneal thickness, medical or eye diseases, pupil size, dry eyes and any prior eye surgeries, so you can discuss them with the Lasik professional.

Also, be careful in choosing your ophthalmologist. Make sure the technician is experienced, well reputed in the community, has access to modern equipment, his availability in the post-surgical procedure period just in case of any issues and, most of all, don’t believe in guarantees.

Lasik surgery is an excellent surgery option for the correction of your eyes. Consider the things mentioned above and you’ll be more prepared to discuss this surgical process with your eye doctor to decide if a particular treatment is the best fit for you.

Read more articles here: A Detailed Look at the Lasik Procedure.

Many people across the country and across the globe need some sort of vision correction in order to be able to see well enough to perform even some of life’s most basic functions. Things like reading a newspaper or deciphering the symbols on a traffic sign would be almost impossible for some people without the help of “corrective lenses”. What’s surprising though is that with all of the people who have an inherent need for corrective lenses, very few actually know how their prescription glasses are actually put together.

Making corrective lenses actually begins at the point of the eye exam, a person is examined by an eye care professional to determine what their prescription is and then that information is sent off to a lab. Once the numbers are in the technician’s hand, he or she will determine what type of prescription blank is closest to the corrective requirements. The prescription blanks are preformed lenses that are flat on one side and curved on the other and most commonly made of impact resistant plastic. The thickness of the blank selected will be determined by the corrective needs of the individual patient. The prescription lens blank is expertly ground done by the technician until it will provide the corrective properties that are needed by the wearer.

Once the appropriate curvature for the prescription has been reached, the edges of the lens are then ground down to fit the frames that were pre chosen by the patient. It’s at this point in the process that the lenses will be specialized if necessary with things like tinting or UV protection.

Then lenses need to fit securely into the chosen frames so it often necessary to heat them in order to make them pliable before insertion into the frames occurs. Once the lenses are securely installed into the frames it’s time for everything to be cleaned up, packaged and shipped out to your eye care professional for you to pick up.

Though the process doesn’t sound incredibly difficult, it is a very exact science – even a minor error on the part of the technician could render the glasses useless to the patient, so the utmost care and precision must be exacted with every single lens that goes into the grinding machine.

Once you get your glasses, you must exact great care in making sure that they don’t become damaged. Some frames are made to handle abuse, they are flexible and can almost bounce back from instances that would have destroyed and older set of frames ” even though the technology with lenses has come a long way they still aren’t capable of holding up well to excessive abuse. If your lenses get scraped up or heavily scratched, it could be back to square one, prescription lenses can’t be ground down to remove marring because that would end up changing the prescription of the lenses and therefore effect the vision of the owner.

If you exercise the caution that you should when wearing your prescription glasses, damaging them shouldn’t be a very big concern but if you are careless in either the handling or cleaning of your prescription lenses you may find that you need a new pair much sooner than would normally be necessary. Prescription glasses can be costly because of the work that goes into producing them properly, most people can’t afford to be replacing a pair of prescription glasses more frequently than is necessary as a result in a change to their prescription. So think about all the care and hard work that goes into crafting your prescription glasses before you do any undue damage to them through improper handling.