LASIK, like any other refractive surgeries, works by restructuring the cornea of the patient i.e. the clear front part of the eye. This allows the light entering the eye to be properly focused on the retina for a clearer vision.
An ophthalmologist performs this surgery by using a laser or a microkeratome (a surgical instrument).
In the majority of the cases, performing a LASIK surgery on both eyes can take up to 15 minutes. This treatment is painless and provides the patient with improved vision. Also for most patients, this surgery offers a permanent solution to wearing contact lenses or eyeglasses.
The treatment includes the following steps:
A person is eligible for the treatment when:
People who are not eligible for the LASIK surgery are:
After the surgery, some patients usually experience discomfort. However, it only remains for a day or two. Apart from these, there are several other side effects, but they are very rare. The side effects are -
The post treatment guidelines include the following:
Eyes start to heal immediately after the surgery. One may start having improved vision within 24 hours post surgery. However, the entire recovery process continues for a longer period of time. It usually varies between 3-6 months depending on the condition of the patient. It will thus allow him/her to live a healthy life with better eyesight.
The price of LASIK treatment falls in the range of Rs.5000/-Rs.100000/-.
LASIK treatment in the majority of the cases provides with permanent improvised vision. A rare percentage of people again face the problems in the long run. However, such consequences may arise due to the change of the lens within the eye. While some people don’t feel bothered by the changes, few may feel the need to wear prescription eyeglasses or opt for a LASIK enhancement surgery sometime in the future.
LASIK Surgery has both surgical and non-surgical alternatives. The surgical alternatives include Wavefront-Guided LASIK, Photorefractive Keratectomy (PRK), LASEK (Laser-Assisted Sub-Epithelial Keratectomy), Refractive Lens Exchange, EpiLasik, Corrective contact lenses, Laser Thermal Keratoplasty, Radial Keratotomy, Conductive Keratoplasty and many more. Non-Surgical alternative includes Overnight Vision Correction.
Refractive surgery is the term used in describing various surgical procedures to correct vision problems like near-sightedness, far-sightedness, presbyopia and astigmatism. This surgery can be performed in order to reduce the dependence on prescription lenses. There are a few kinds of refractive surgeries that can be performed among which LASIK surgery is the most common. Other types of refractive surgeries include intraocular lens procedures, which maybe more beneficial according to the needs of the individuals.
In this surgical procedure, near-sightedness, farsightedness, presbyopia and astigmatism can be corrected by laser. A microkeratome blade or a femtosecond laser is used to create a thin flap in the cornea. The corneal tissue underneath the flaps is then removed using excimer laser. After this, the flaps are laid back in place, thereby covering the removed corneal tissue. In case of near-sighted people, LASIK is used in order to flatten the cornea, which is too steep and in case of farsighted individuals, steep cornea is required. Also by smoothing irregular cornea, astigmatism can be corrected.
In order to consider LASIK eye surgery, one should first evaluate if the LASIK surgeon is right for them or not. After this, the procedure includes an examination of eye health, the kind of vision correction required, and the amount of corneal tissue removal required. Determination of other health factors that may cause disqualification of LASIK surgery is also necessary or there may be hazardous circumstances.
Other laser surgeries
It may so happen that an individual might not be qualified for LASIK. However, they might qualify for other laser eye surgeries like photorefractive keratectomy (PRK), LASEK and Epi-LASIK.
Individuals can also opt for surgeries that are non-laser for correction of their vision. An individual’s eye-structure and prescription are considered in order to determine what procedure would suit them best.
Common facts about LASIK
The eyes are such a complex structure that even minute changes in the extremely complicated internal structure affects the most important function of the eye, vision. And anyone with a vision problem can vouch for the extent of effect it has on the quality of life. Whether you are able to see only things at a close distance or far off, it is definitely difficult.
The good news, however, is that with the thorough understanding of the eye’s structure, these abnormalities can be corrected and absolutely normal vision can be restored. While surgery was the only mode of correction a few decades ago, but laser has come to rescue, especially in intricate structures like the eye.
LASIK is an abbreviation for laser in-situ keratomileusis. This is the most common and popular method to correct vision in errors of refraction. In all these conditions (as below), the cornea which is the clear portion in the front of the eye is affected.
The light passes through the cornea, lens and falls on the back of the eye (retina), where an image is created, sent to the brain where it is reversed, and this is what we ‘see.’ Each of these parts have to be in perfect condition in order to produce this proper sight. Errors of refraction fall into three main categories.
What is done?
During the laser surgical procedure, ultraviolet laser beam is directed at the cornea. It is reshaped - made thinner in nearsightedness, elongated in farsightedness, and restoring the normal shape in astigmatism. This ensures that light is focused properly on the retina, producing sharp images and restoring vision.
While errors in refraction are extremely common, there is no reason to panic. Corrective measures are also available, which can restore an almost normal vision. If you wish to discuss about any specific problem, you can consult an ophthalmologist.
While spectacles are a fashion statement for some people, for others they are an uncomfortable necessity. Though contact lenses may be a little more aesthetically pleasing they too can be quite uncomfortable and cannot be worn throughout the day. Thankfully, there is a third way to correct vision. Laser surgery or LASIK, it is a popular refractive procedure that can correct common vision problems, such as nearsightedness, farsightedness and astigmatism. This procedure aims at reshaping the cornea so that light entering the eyes can be focused onto the retina for the person to have a clearer vision.
Laser surgery is pain-free and quick in most cases. Usually, it does not take more than 15 minutes to correct vision in both eyes. The results of this surgery can be seen in as little as 24 hours.
The first step of laser surgery to correct vision is to create a thin, circular flap in the cornea. This is then folded back to access the stroma or underlying cornea. An excimer laser is then used to remove some of the corneal tissue. For people suffering from nearsightedness, the cornea is flattened while for people suffering from farsightedness, the cornea is made steeper. In cases of astigmatism, an irregular cornea is smoothened. Once the correct gradient has been achieved the corneal flap is put back into place and the cornea is allowed to heal naturally. There are no stitches or bandages required in a laser eye surgery. You may feel a temporary burning or itching sensation in your eyes immediately after the procedure. It is important not to rub your eyes or place any pressure on them. Your vision may also be cloudy or blurred for the first few hours. A doctor will usually advise you to rest for a few days after the surgery so that your cornea can heal properly. In a few days, your eyesight should stabilize, though, in a few rare cases, it may take a little longer. You should also avoid any form of strenuous exercising for a few days after the surgery.
Though LASIK surgery has a very high success rate, there are very rare occasions where spectacles may still be needed even after the surgery. Thus LASIK is a choice of treatment for many who seek freedom from glasses. If you wish to discuss about any specific problem, you can consult an ophthalmologist.
One of the most cutting edge eye procedures which has been very successful in practice and has been loved by millions of patients is LASIK. LASIK is a form of eye surgery performed with the help of a precise laser and is very effective in correcting nearsightedness, farsightedness as well as astigmatism (imperfections with the shape of the cornea). With any such procedure, there are bound to be myths which arise out of misconceptions. Some of those myths as well as the advantages of LASIK have ben enumerated below:
Myth # 1 – Lasik can only be performed up to a certain age
Many people think that LASIK cannot be performed on people of advanced age. This is a misconception as LASIK has been performed on people above 90 as well. There are some considerations however, such as the health of the person and the condition of the eyes. If there are no medical objections, then LASIK can be performed regardless of the age of the person. Doctors also tend to wait till young adulthood (around 18-20 years of age) before performing LASIK. However, LASIK procedures have been performed on young children with severe vision problems as well.
Myth # 2 – The technology behind LASIK is too new and thus not yet perfected
This is yet another commonly propagated myth about LASIK. The technology for this procedure has been around for quite some time and has ben performed with increasing regularity since the 1980s. There have been multiple long term studies done on people who underwent LASIK surgery and almost all of them have had favorable results both in the short term as well as the long term. It is a properly established field and means of treatment within ophthalmology and is subject to the same stringent standards testing as other treatments within the field of medicine.
Myth # 3 – LASIK can cause many complications such as dry eyes and night glares
Any surgical procedure has a certain chance of complications occurring. However, LASIK tends to have very low occurrences of complications. What many people tend to confuse complications with is the normal healing procedure. Dry eyes and night glares usually occur after the first few weeks of the procedure and is part of the healing process of the body. It usually tends to go way with the first few months itself.
Myth # 4 – Contact lenses are better than LASIK
While contact lenses do serve a purpose in correcting vision, they can often contribute to eye infections as well as irritations and headaches. Also contact lenses need to be changed every few weeks or so. LASIK surgery eliminates all of these hassles and you can have perfectly clear vision without having to worry about all the problems that contact lenses bring with them.
Myth # 5 – The LASIK procedure is painful
No other myth is farther from the truth. In this procedure, the surgeon creates a thin flap like structure out of the tissue within the cornea with the help of a laser. This layer is then used to reshape the cornea and thus correct vision problems. Antiseptic and numbing eye drops are used when performing this surgery which results in minimal discomfort that only stays during the initial stages. If you wish to discuss about any specific problem, you can consult an ophthalmologist and ask a free question.
Eye surgeries have evolved a long way. Starting from the most basic of eye surgeries, technological advancement has evolved a number of modern eye surgery techniques. LASIK is the latest trend in eye surgery and is the most common type of eye surgery in the modern day.
LASIK or Lasik (laser assisted situ keratomileusis), is a laser eye surgery or laser vision revision. It is a kind of refractive surgery for the rectification of nearsightedness, hyperopia, and astigmatism. The LASIK surgery is performed by an ophthalmologist who utilizes a laser or microkeratome to reshape the eye's cornea with a specific end goal to enhance visual acuity. For most patients, LASIK gives a lasting contrasting option to eyeglasses or contact lenses.
Carrying out a LASIK surgery:
Results of LASIK surgery:
Side-effects: While this surgery strategy provides effective results, LASIK complications can happen and may incorporate diseases such as night glare, and you may experience starbursts or radiances, especially while driving.
LASIK surgery is one of the most carried eye surgeries nowadays and gives satisfactory results. If you wish to discuss about any specific problem, you can consult a ophthalmologist and ask a free question.