10 Things You Need To Understand About LASIK Vision Correction
1. LASIK is not for everybody
Before undergoing any LASIK procedure, you should have a radical eye exam. Any sensible LASIK surgeon can try this to work out whether you are a smart candidate, although some facilities which emphasize profits over quality will do it perfunctorily or perhaps not at all.
Good outcomes are necessary to a good LASIK surgeon. Thus it's in his/her interests as well as yours to test your vision and overall eye conditions carefully before going ahead with any LASIK procedure. If your cornea is just too skinny, your pupil diameter too large, or the reason for your vision problem isn't any refractory error, then you would like a solution alternative than LASIK.
Similarly, if you are:
? Pregnant
? Beneath eighteen
? Diabetic
? Have any of a variety of diseases
? Are taking sure medications
you may not be a sensible candidate for LASIK.
2. LASIK treats solely sure eye conditions
If your vision problem is caused by irregularities in the shape of your corneas:
? Nearsightedness
? Farsightedness
? Astigmatism
you will be a good candidate for LASIK. If your vision downside has any alternative cause, then alternative procedures can be required to correct it.
3. LASIK doesn't treat presbyopia
Presbyopia is often demanded with hyperopia, farsightedness. As we have a tendency to age and start needing reading glasses, we tend to will often still see well in way distances, therefore it may seem that if LASIK can correct farsightedness, why can't it correct presbyopia too?
It cannot, because presbyopia is caused not by the form of the corneas, however by 2 alternative things:
? The lens changing into additional stiff with age
? The small eye muscles turning into additional weak
So from the mix of these 2 trends, we have a tendency to have a decreasing ability to focus at different distances. At 1st we tend to will still see at far distances and simply need correction for near distances. But eventually so much distances become additional of a problem too.
4. The laser used is a cool one
LASIK uses an excimer laser, that may be a cool beam of very tightly focused ultraviolet light. There's no chance of heat hurting your eyes. All lasers give off heat, however the excimer laser penetrates to only a microscopic depth of the cornea and its action is to vaporize little items of corneal tissue such that your vision will be corrected. Because it does that, its heat is dissipated also. This method is called photoablation.
All lasers are man-created, and for specific completely different purposes. Excimer lasers are created from a mix of reactive and inert gases, that when electrically stimulated, produce a kind of molecule referred to as a dimer. The name excimer is a combination of excited and dimer.
5. Excimer lasers are incomprehensibly precise
The excimer laser beam used for vision correction is 0.25 microns wide. That is concerning 0.5% of the width of a typical human hair. This microscopic diameter makes it very precise.
We recognize that tools are only as sensible as the person using them, and with the excimer laser system, a technician specifically trained in these systems, is accountable, operating along with your eye surgeon. This technician sets up the laser system, that incorporates a laptop, microscope, patient bed, and other controls for the surgeon's use. Then he operates it in cooperation with the surgeon.
6. Wavefront-guided LASIK is even more accurate than traditional LASIK
Wavefront technology could be a recent addition to LASIK procedures. It is also known as Custom LASIK, because by thus accurately diagnosing the problem, it customizes the vision correction you receive.
Wavefront diagnostic will, and several feel ought to, be done on all LASIK candidates. It can be done separately from using Wavefront-guided LASIK to treat the problem. It works by sending special light-weight into the eyes, which reflects back to the Wavefront system, carrying with it detailed data regarding the irregularities on your corneas.
This data is expressed as a 3-D map of your corneas on the computer monitor, and translated into mathematical formulae that your eye surgeon uses to guide the laser in correcting your problem.
7. LASIK may be a quick and painless procedure
Before the procedure is begun, anesthetizing eyedrops are applied. Several people don't like to have someone else touching our eyes, and some are alarmed at the idea of a laser shining into their eyes. Some eye surgeons also offer medication like Valium if you're feeling terribly anxious.
The laser itself is used for only seconds. Exactly how long would rely on how a lot of correction was needed however it would be less than regarding 20 seconds. The entire procedure takes about 20 minutes for each eyes. Afterwards you will feel a slightly scratchy sensation, however most individuals do not want any pain medication.
8. There are restrictions on your activity within the recovery amount
For the first week or thus, you would like to wear an eye fixed shield when you sleep. This is to forestall pressure being place on your eyes. For the identical reason, don't touch or rub your eyes.
? You'll shower or bathe, but no swimming
? No eye makeup for a week or thus
? Normal activity starting the day when surgery, but no contact sports for some weeks
9. Follow-up is required after a LASIK treatment
A good eye surgeon will offer you a series of follow-up visits, starting the day once your procedure, and then approximately:
? Every week later
? A month later
? three months later
? six months later
? 1 year later
These visits are to check on the healing, each short-term and long-term, and on the vision improvement and patient satisfaction.
10. There is no guarantee of 20/20 vision
Several folks do achieve twenty/twenty vision once a LASIK surgery. However a sensible eye surgeon will not guarantee it. There can be complications sometimes. LASIK will correct only certain eye problems, thus if you have any other drawback that affects your vision, it remains once LASIK surgery.
And we tend to all grow older and need reading glasses at some point. There are some ways that to treat presbyopia and the long run can in all probability bring us additional, but LASIK doesn't treat it.
Author Resource:
Clementine Robertson has been writing articles online for nearly 2 years now. Not only does this author specialize in Eyes Vision, you can also check out latest website about
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