or Lasik (laser-assisted in situ keratomileusis) is a type
of refractive laser eye surgery performed by ophthalmologists for
correcting myopia, hyperopia, and astigmatism. The procedure is
generally preferred to photorefractive keratectomy, PRK, (also called
ASA, Advanced Surface Ablation) because it requires less time for the
patient's recovery, and the patient feels less pain overall. However,
there are instances where a PRK/ASA procedure is medically justified as
being a better alternative to LASIK.
Many patients choose LASIK as an alternative to wearing corrective eyeglasses or contact lenses.
What is a Wavefront Lasik Procedure Like?
Let's walk through what a client experiences when attending a Lasik center for a Wavefront Lasik procedure. The procedure itself generally only takes between five and ten minutes for each eye in total, and both eyes are done during the same procedure. The actual time to reshape the eye with the Lasik excimer laser is usually less than 15 seconds per eye.
Any person's vision problems are generated by small "aberrations" within the eye that prevents the light from focusing objects as they should. The Lasik equipment locates and classifies these aberrations and then processes them so that the Lasik physician will correct these and allow the light to focus properly once the eye has healed.
In a Wavefront Lasik procedure, the patient stares at one point while a light is sent into the eye, which is reflected back and read by a Lasik Wavefront sensor. The distortions in this reflected light are mapped using a small computer within the Lasik system, and then this information is used to guide the laser that treats the eye.
Once the light creates the map for the eye, the Lasik surgeon has to create a small flap to access the cornea. This is done using a laser (this type of Lasik procedure is known as IntraLasik, or bladeless Lasik) or a small blade known as a microkeratome.
This flap is then opened to allow the cornea to be reshaped by the Lasik system. The excimer laser actually reshapes the cornea, which is the crucial part of the Lasik procedure.
In order to determine exactly how to reshape it, the map created earlier by the Wavefront sensor is used to direct the beam of light accurately. The Lasik physician uses these precise tools to get the clearest vision results possible.
This custom Lasik procedure can not only correct such standard problems as nearsightedness, but can also address aberrations that create light halos, glare, haze, or starburst patterns. Once the Lasik physician determines that all relevant aberrations have been eliminated, he replaces the flap in its proper position, where it adheres normally and will heal naturally.
mentioned earlier, this entire Lasik process takes between ten and
fifteen minutes per eye. A patient gets a mild sedative and eye numbing
drops to make the procedure both relaxing and painless. Most people
notice an improvement in vision due to Lasik almost immediately.
Once the Lasik procedure is finished, you will get some eye drop medication to lubricate and protect your eyes. This medication (and the liquid in the drops themselves) may cause some blurring, and so for this reason (and to avoid any eyestrain) you should arrange for someone else to drive you home. It is also a good idea to go to sleep as soon as possible after the Lasik operation in order to promote even faster healing.
To promote optimal healing the Lasik physician often gives a plastic shield to wear over your eyes for the first night or two. Follow closely any recommendations by the Lasik physician.
Do further investigation
into this great new Lasik procedure,
More ArticlesMy Lasik Vision Story
... the procedure done! I was given a mild sedative (as well as numbing eye drops) and the Lasik procedure went without a hitch. Though I did feel a mild pressure during the time on my eyeball, my hands were the things that hurt after the Lasik operation was over (I must have had them clenched the whole time!). ...
... any glasses or contacts. "What is the cost and how do I pay?" A typical Lasik surgeon charges between $500 and $2500 per eye, depending on the patient and the surgeon. However, a Lasik physician should be selected on experience level and track record, not on the lowest price. Insurance rarely covers the ...
... chance of getting other cells underneath the flap. I don't really understand all of the Lasik arguments with regard to this, but I think you should discuss the various Lasik options with the physician. They do vary in cost also. Before I talk about the procedure itself, let me give a bird's eye view of ...
... Lasik surgery, 1.7 percent of patients experience some glare or sensitivity to light after the operation. This varies by patient, but this sensitivity is especially noticeable when looking at a bright light, such as a streetlight when walking at night, or other strong light and dark contrast. Another ...
... well this procedure works. Let's look at several of these and determine which of these are true or false. First, more Lasik clients get 20/20 vision or better using IntraLasik. Any Lasik procedure cannot guarantee perfect vision for every client, though more than 90% get results to at least 20/40 vision. ...
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