What Is Lasik
To know what is Lasik it is important to know what the word stands for. The word LASIK stands for Laser-Assisted In Situ Keratomileusis. Lasik is a procedure that permanently changes the shape of the cornea using the excimer laser. That is what is lasik in a nutshell. To address the question what is lasik though is not that easy. Lasik technology is quite complicated. We cannot know what is lasik if we do not know the different types of refractive errors. These are: myopia, hyperopia and astigmatism. Myopia pertains to nearsightedness. Hyperopia refers to farsightedness and astigmatism pertains to a distortion of the image on the retina caused by irregularities in the cornea or lens of the eye.
What is Lasik can be determined in its effects. Lasik surgery enables the patient to undergo precise and controlled removal of corneal tissue by a special laser which reshapres the cornea. There are other types of refractive surgery which are different from what is lasik. There is radial keratotomy or RK and photorefractive keratectomy or PRK. The same type of Laser is used for Lasik and PRK. In PRRK, the top layer of the cornea called the epithelium is scraped away to expose the stromal layer underneath. What is lasik is to cut a flap in the stromal layer and flap is folded back. The use of lasers similar to that of PRK to treat refractive errors define largely what is Lasik in layman’s terms. Over the last years, doctors used Lasik as main surgery for treating myopia.
Before undergoing the Lasik surgery make sure that you do your part to prepare aptly for the procedure to prevent possible negative consequences. The Lasik procedure takes only thirty minutes to complete. If you cannot focus your eyes for 60 seconds then you may not qualify for a Lasik procedure. Make sure that you’ve made proper inquirers pertaining to the treatment before undergoing the procedure.
What is lasik is determined mostly by what it does. If you are not a risk taker or if your job prohibits refractive procedure or cost is an issue, then probably lasik treatment may not be the procedure for you. Do not sign any waiver before you are made aware of the risks and benefits involve with Lasik surgery. What you do before and during surgery are as important as what you do after it. Make sure that you follow doctor’s orders to ensure your safety.
What is the Initial Lasik Eye Exam Like?
The first significant step before the Lasik surgery is to have a comprehensive eye examination, in order to be sure that you are a good candidate for the Lasik procedure. A map of your eye will be created during this exam. This map is used in order for the Lasik physician to determine how to reshape your eye to give you the clearest post-operative vision possible.
This eye exam will do several things. Your eyes will be dilated in order to see if there are any irregularities within the eye itself. The thickness of the cornea will be measured, and a precise map of the cornea will be generated. The "refractive error" (or the reason why your vision isn't currently perfect) will be accurately analyzed in order for the Lasik procedure to get the best results possible. Finally, how your eyes generate tears will be closely looked at, as good tear production is essential for the health of every eye.
Before or after these measurements, the Lasik physician will discuss your past medical history to see any previous operations or any ongoing health problems. A few chronic conditions may make the Lasik procedure not a good option for some people, and also women currently expecting should wait for some time after delivery. The physician also will discuss the expectations the Lasik client has about the operation and subsequent changes in their lifestyle.
Though most people pass through this Lasik eye exam with flying colors, be prepared for some suggestions or serious discussion. Your eye map may indicate that a newer form of Lasik procedure might be better, such as one that generates a three dimensional waveform for each eye. Tear production issues may indicate that the Lasik procedure is not the best option for you, and the Lasik physician may recommend another solution.
If all goes well and the Lasik procedure is scheduled, the physician will review the treatment plan and what the client should do to prepare for the Lasik surgery. This plan may vary slightly between patients, but in general will look something like the schedule below. Always follow the recommendations of your Lasik physician closely.
First, contact lenses should be avoided for several weeks prior to Lasik vision correction, since contacts can slightly affect the shape of your cornea. It is important to let your eyes rest in order to get the most accurate Lasik vision improvement possible. Hard contacts should be avoided for a month, soft contacts for at least two weeks.
Stop using any lotions, makeup, or anything else that could possibly get into the eye the day or two before surgery. It is important to have your eyes as rested as possible before the Lasik operation. Also, arrange for someone else to drive you home after the Lasik procedure itself.
These are the most common steps to prepare you for an easy and successful Lasik procedure. Make sure you give the doctor all information needed for your case, and follow his directions closely. The Lasik procedure will give you a new outlook in life!