Por Yong Ming, Corneal and refractive surgery specialist Answered Jul 19, 2016
I fully agree with Gabriel Taub.
If your eyes are eligible and are otherwise healthy, it’s entirely up to you. Someone whose lifestyle makes it difficult for them to wear glasses or contact lenses, or who just do not like these devices, would benefit. Others who don’t mind them would be fine carrying on as they are. So it’s all up to the individual.
The greatest benefit of getting laser refractive surgery would be convenience from not having to wear glasses or contact lenses (before the onset of presbyopia). Waking up to clear vision, being able to jump into a pool without a second thought, etc
On the other hand, are the small risks of surgery which could include things like under or overcorrection-which could , of course,e corrected with enhancements. Rarer still are things like infections. You need to be aware of the limitations of such surgery too, including the fact that it does not ‘cure’ presbyopia.
If you are really interested in this procedure you need to get a proper eye assessment and then an in-depth discussion with the counsellor/doctor.
Ankit Batra, A doctor who loves to help people Answered Aug 30, 2018
LASIK is eye surgery that permanently changes the shape of the cornea (the clear covering on the front of the eye). It is done to improve vision and reduce a person’s need for glasses or contact lenses.
For clear vision, the eye’s cornea and lens must bend (refract) light rays properly. This allows images to be focused on the retina. Otherwise, the images will be blurry.
This blurriness is referred to as a “refractive error.” It is caused by a difference between the shape of the cornea (curvature) and the length of the eye.
LASIK uses an excimer laser (an ultraviolet laser) to remove a thin layer of corneal tissue. This gives the cornea a new shape so that light rays are focused clearly on the retina. LASIK causes the cornea to be thinner.
LASIK is an outpatient surgical procedure. It will take 10 to 15 minutes to perform for each eye.
The only anesthetic used is eye drops that numb the surface of the eye. The procedure is done when you are awake, but you will get medicine to help you relax. LASIK may be done on one or both eyes during the same session.
To do the procedure, a flap of corneal tissue is created. This flap is then peeled back so that the excimer laser can reshape the corneal tissue underneath. A hinge on the flap prevents it from being completely separated from the cornea.
When LASIK was first done, a special automated knife (a microkeratome) was used to cut the flap. Now, a more common and safer method is to use a different type of laser (femtosecond) to create the corneal flap.
The amount of corneal tissue the laser will remove is calculated ahead of time. The surgeon will calculate this based on several factors including:
Your glasses or contact lens prescription
A wavefront test, which measures how light travels through your eye
The shape of your cornea surface
Once the reshaping is done, the surgeon replace