Posts Tagged ‘PRK’

A History Lesson in LASIK Surgery

Sunday, February 13th, 2011

The revolution of technology is really the reason we have lasik today. Before lasik was developed, there were many theories about vision correction. By understanding our history, we better appeciate modern medicine. Lasik, epi lasik, i lasik, custom lasik, and prk would not be here today if it were not for our ancestors becasue they actually came up for the its need.

Corneal power and curvature is changed with lasik surgery. The focal point of the retina is in front of the retina in a near sighted or myopic person because the eye is often times too large. Lasik flattens the cornea and as a result pushes the focal point back. The focal point is behind the retina in a far sighted or hyperopic patient because the eye is often times too small. Lasik steepens the cornea and as a result pulls the focal point forward in a far sighted hyperopic patient.

So now that we discussed the general principle of lasik, how did we ever come up with the notion of physically changing the power of the eye to correct vision in the first place? Because before modern treatments like lasik were developed, there had to be a theory that evolved that set forth the need for something like lasik.

The notion of changing corneal power to treat near sightedness and far sightedness is what really led to the invention of LASIK surgery. Believe it or not, this idea can be linked all the way back to Leonardo Da Vinci. In 1508, he wrote a book titled “Code of the Eye” in which he discussed altering corneal power by submerging the eye in water. This theory often credits him with introducing the idea of contact lenses.

In essence, Leonardo Da Vinci also introduced the idea of refractive surgeries like LASIK, custom LASIK, all laser LASIK, PRK, LASEK, i LASIK, & RK. Who would have ever thought this to be the case? Amazing!!!!

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What You Need To Know About Laser Eye Surgery In Belfast

Friday, July 16th, 2010

Many people have issues with their eyesight and want to correct it. Whether it is far sightedness, near sightedness or other vision problems, a large number of people wish they could see more clearly. Options were previously limited to wearing contact lenses or glasses. Laser eye surgery is becoming much more common. Laser eye surgery in Belfast is available for a wide range of vision issues. Here is some information you need to tell whether this is the right solution for correcting your vision.

The category of vision issues that can be corrected are known as refractive errors. These include being unable to see items at a distance, being unable to see items up close or astigmatism. The process of focusing an image on the retina at the back of the eye is disrupted with refractive errors. When caused by an irregular shape to the cornea, it is a refractive error and laser eye surgery can help correct the problem.

The surgery is performed using laser devices in order to change the shape of the cornea. This means that suddenly, the retina will be able to focus images properly and your vision will be improved. The change is often dramatic and immediate. Stories of people who can suddenly read a clock face when they were unable to before are very common with laser eye surgery.

There have been some changes to the performance of operations thanks to technical advances over the years. New techniques are now available and these are able to treat more profound vision problems and disorders such as presbyopia. This means that a larger number of people are suddenly able to benefit from this process.

Researching the clinic that you will choose before you book your surgery is critical. In order to find names of potential clinics you should ask your current eye care professional to refer you or you can also look online in order to get some names and websites. Because laser eye surgery clinics in Belfast are plentiful, you will have a number of clinics to choose.

Aftercare is important to ensure your success so make sure that you take any recommendations and suggestions seriously. You want to make sure that any adverse reactions, which are rare, are less likely to happen to you.

Be sure to look at laser eye surgery Belfast clinics before you book in for surgery.

Belfast Laser Eye Surgery Clinics

Sunday, June 20th, 2010

If you no longer feel like wearing glasses - no matter if there for night driving or reading or daily use, you can get help from laser eye surgery Belfast clinics which can enhance your vision. Laser eye practices here seem to be everywhere. You should do some research on the practices first if you are going to use them. The most important thing to remember no matter what the location, is to make sure the operation is done by accredited qualified surgeons with a strong track record of previous successful surgeries.

If you therefore think Belfast laser eye surgery suits you, you can book a consultation at one or a few practices. After this if you decide you want to pursue with the operation you will have an eye scan to determine your eyesight in very high detail. Everyone’s eyes have individual attributes and the difference between our own eyes can also be huge.

As soon as the technical optometrist eye scan is done with you could be asked to undergo more tests like the modern Artemis corneal scanner test. There are many surgery options like LASIK, PRK and LASEK which are all on offer in Belfast, UK. Your particular type of surgery will be recommended according to your eye conditions and your size of budget. There is a whole host of other techniques from lense implants, cross linking and artificial lenses. An experienced qualified eye professional can discuss all the available options open to you.

Before recent medical advances many people have been deemed unsuitable for laser eye surgery by some eye surgeons in Belfast before as it was thought the person would not have success with laser eye surgery. One reason commonly given for rejection was the persons age, or rather their eyes had disproportionately aged (a condition known as presbyopia), and nothing could reverse their failing eyesight. But with the continual advancement of medical break through new techniques have been put to trial that have had prominent advances for laser eye surgery. A technique named Laser Blended Vision Surgery has had major positive results in improving the eyesight where presbyopia damaged vision.

There is a significant market for laser eye surgery Belfast clinics offering services to the 40 and up age group. This is now more true than ever as we progress into an aging society were folks are living longer thanks to diet and health changes. Indeed many people who had good eyesight in their former years notice once they reach their early fifties their eyesight progressively worsens. Thankfully most small visual in corrections can be fixed by laser eye surgery.

A few of the pitfalls of laser eye surgery can be poor vision during night time and experiencing halos around bright lights. You may also feel dryness in the eyes. So just the same as most surgical procedures there’s a risk of complications, and a qualified laser eye surgery Belfast surgeon will be able to explain the risks of having laser eye surgery to you.

Be sure to look at laser eye surgery Belfast clinics before you book in for surgery.

Everything About LASIK Surgery

Wednesday, November 4th, 2009

Because it is gentle, fast, efficient and with few complications, the LASIK surgery is the most popular eye surgery type today. It is a great laser surgery for most people; no matter if they suffer from farsightedness, nearsightedness and/or 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.

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.

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.

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.

The LASIK surgery can also not prevent the natural age-related long-sightedness that even normally sighted people will experience.

Martin Elmer is the editor of Oejenoperation. Here you can also read about Laser operation.

categories: eye surgery,laser surgery,LASIK,PRK,surgery,operation,eyes,sight,laser,glasses,short-sighted,long-sighted,astigmatism,contact lenses

What To Take Care Of If You Want To Have Eye Laser Surgery

Wednesday, April 29th, 2009

Undergoing surgery on eyes is not as easy as doctors say. First of all, we think of our eyes as being very delicate. And that’s the reality. There are so many accidents that can cause, that everybody ought to carefully consider what clinic they choose to treat their sight.

PRK stands for photo refractive keratectomy. The surgery is basically the the cutting of a thin portion from the cornea, resulting in reshaping it. In this way vision defects are corrected, making it possible a glasses-free living for so many persons.

Lasik is working on the same principle as PRK, but the portion removed from the cornea is not the surface one, but a deeper portion. Then the upper portion of cornea is put back in place, permitting the eye to heal the wound.

Lasik and PRK are both operated with excimer lasers. All lasers for PRK or for any other medical surgery must be FDA approved. This is how patients safety is secured. This is how the government is a signal they are preoccupied to have a healthy population.

Myopia and hyperopia can both be settled through either Lasik or PRK surgery. The doctors will examine each candidate individually, then indicating one operation or another. At times, they may even claim that the sufferer should not be undergoing any surgery procedure.

Mistakes in precision surgery could be dangerous, as they may impair the person who suffered the surgery irreversibly. Deciding for the eye surgeon only after informing yourself very well will diminish the danger of meeting the not-so-specialist surgeon.

It has been noticed by some eye surgeons that patients need less recovery days after Lasik than after PRK. However, as nobody made the hard evidence of this fact yet, all we have to say is that there are cases in which one type of surgery is better than the other. This is why we need to go for specialist advice before doing anything.

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