Questions about LASIK Surgery
What Is LASIK?
LASIK is a procedure for the eyes to improve vision. The LASIK acronym stands for laser-assisted in situ keratomileusis. During the procedure, a laser removes tissue from the cornea, so it can reshape and refract light correctly to the retina, at the back of your eye. It has been very successful since it’s launch and is done in a variety of clinics across New Zealand.
Am I A Good Candidate for LASIK?
So many people are interested in the Lasik vision correction procedure, and want to know the benefits, the risks, and how the Lasik procedure works. One of the first things to consider is what requirements a person should meet in order to have a successful Lasik procedure. Though each individual case should be discussed with a qualified Lasik physician, here are some guidelines to see if you are a good candidate for Lasik vision correction.
First, the eye should be properly matured. This means that anyone under the age of 18 really needs to wait before a Lasik procedure is done, for it is likely that the shape of their eye will continue to change for several years. If the eye shape changes after the Lasik operation is done, the clarity of vision will be affected. Some Lasik physicians recommend waiting until age 25 in some cases.
In addition to an age cutoff, the vision prescription for the Lasik candidate should be stable for at least one year, and preferably for longer than that. This is for the same reason as above, that the Lasik procedure will only continue to be effective if the eye shape remains constant after surgery.
One comment about age cutoffs should be made with regard to Lasik surgery. There is no maximum age, as many patients in their fifties to their eighties have had a very successful Lasik procedure. The main consideration in these cases is enough tear production for successful healing and lubrication after the Lasik vision correction.
The eyes of the Lasik candidate should be healthy. This means that any person undergoing a Lasik procedure should have had no eye infection or injury for at least a year, and must have no scarring on the cornea of the eye. In addition, they must not have any recurring eye problem, such as a history of herpes infection in the eyes.
The medical history of a prospective Lasik client also plays an important part. Some chronic conditions, such as autoimmune disorders like Lupus, will prevent some people from being able to schedule a Lasik procedure. You should be very clear about any and all medical conditions that are current, or even completed ones in the past. Also, women who are pregnant or nursing should wait to have a Lasik procedure scheduled.
A good Lasik physician will also not schedule people with dry eye syndrome for Lasik vision correction. Having sufficient tear production is important, though for minor problems this may be aided by medication during the healing process. In addition, those people with eyes that dilate very widely are not good candidates for Lasik.
These are most of the most common reasons that a person should look at some other eye improvement choice other than Lasik. Most generally healthy people with standard vision problems benefit greatly from a Lasik procedure done by a trained, professional Lasik physician.
Read more: How much does LASIK cost?
Types Of Laser Eye Surgery
- LASIK is one of the first laser related procedures to alter the cornea and this treatment works for all types of refractive issues.
- SMILE is a newer version and generally has fewer side effects , but only works for people with myopia and sometimes associated astigmatism.
- There are a variety of other procedures as well, but your best option is to get tested and consult a professional.
What Happens During A Wavefront LASIK Procedure?
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.
You may be a better candidate for SMILE than LASIK, however. Work with your eye doctor to decide which procedure works best for your eyes.
The LASIK procedure
As 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.
What Do You Currently Wear?
What Happens After the LASIK Procedure?
After you are fully prepared, the Lasik procedure takes less than fifteen minutes to complete for both eyes. This will seem a remarkably short time to have a permanent change to your vision, and in this regard Lasik seems almost too good to be true. In addition, most Lasik patients notice improved vision immediately or within a few hours after the Lasik procedure has been performed.
This does not mean that you should expect to walk out of the Lasik clinic with perfect vision and without any need to treat your eyes carefully for the next several days. It also means that some Lasik patients will need more time to see the total results for the Lasik procedure, sometimes as much as six months for their vision to stabilize permanently. Anticipate good vision, and take the time and care for the operation to produce its best result.
Usually the Lasik physician will give the post-procedure patient a protective shield for their eyes. This should be worn as long as the physician specifies, and usually only at night for one or two nights. He may also recommend sunglasses during the day if you experience sensitivity to light after the Lasik procedure is done. Discuss these options in detail at the Lasik center before the operation, so you know how to best take care of your eyes.
Many patients at the Lasik centers often get eye drops to keep their eyes moist for some time after the Lasik procedure is done. Again, this varies by patient and by physician, so ask about your particular situation, especially if you are prone to eye dryness on an occasional basis even before the Lasik procedure. Also, it might be helpful to keep any ceiling fans or other air circulation devices off in the household for the first few days.
Most clients can return to work and normal daily activities the day after the Lasik procedure is done, and do not require any extra assistance from other friends or family members. There is usually little to no post-operative discomfort after Lasik has been performed. It is recommended that patients go to sleep as quickly as possible after the Lasik surgery in order to minimize any post-operative discomfort. Upon waking, improved vision from the Lasik corrections should already start to be visible.
This improved vision may not be the final product of the Lasik procedure. The improvement to nearsightedness after Lasik is usually quick and dramatic, though there may be some problems in reading easily for the first few days after the Lasik operation. This is perfectly normal, and should clear up before the week is out.
Patients that use Lasik to improve their farsightedness usually find a dramatic improvement the day after the Lasik surgery. It might be that there is a temporary blurring of objects in the distance, but this will resolve itself. If this condition remains for more than a few days, the Lasik physician can recommend and prescribe temporary glasses until vision is stabilized.
These are all typical post-operative recommends for a Lasik patient, in order to feel comfortable with what to expect after the Lasik procedure. As with any medical treatment, get all of your questions answered by the staff of your Lasik center for your individual case.
How Much Does LASIK Cost?
LASIK prices vary depending on the exact procedure and clinic used.
LASIK procedures typically cost around $2,500 – $3,500, whereas other procedures such as SMILE, PRK and PRESBYOND are around $3,000 per eye.
Most clinics offer finance packages to make the procedure more affordable, with most even offering interest free credit.
| Procedure |
Price Range (NZ$ Per Eye) |
|---|---|
| LASIK | $2,500-$3,500 |
| SMILE | $3,000-$3,500 |
| PRK | $3,000-$3,500 |
| PRESBYOND | $3,000-$3,500 |
Our pricing information was taken from Auckland Eye, Bowen Eye Clinic and Wellington Eye Centre.
Eyecare After a LASIK Procedure
A person that is considering a Lasik procedure to improve their vision has two major responsibilities:
1. selecting the best surgeon possible for their budget, and
2. understanding and keeping up with eye care after the Lasik operation is done.
Most Lasik procedures go very smoothly, and more than 90% of the patients are happy with their improved vision and have no permanent side effects. Part of this success is due to good care at home once the Lasik procedure is complete.
The first step in having the best care after a Lasik procedure is to understand exactly what is directed by the Lasik physician. The prospective Lasik patient should be given a good understanding of the entire process when they first visit a Lasik center to interview the physician and the staff. On the day of the procedure, a member of the staff should very carefully go over exactly what steps should be done to encourage optimal eye health and healing after the Lasik operation.
One thing that the patient should ask is what side effects are to be expected directly after the Lasik procedure, how long they should last, and which symptoms should be promptly told to the Lasik physician or member of the staff. A number of symptoms, such as fluctuating vision or halos around lights, are to be expected and are not a cause of worry. Ask the staff about any postoperative symptoms that are unclear, to make sure that they are thoroughly understood.
Each Lasik physician has their own recommended procedures for their patients, but here is a list of typical suggestions that most Lasik centers recommend;
- First, get some sleep as soon as possible after the Lasik procedure is done. This gives a great boost to the healing process.
- Second, avoid any contact, bumping, or rubbing of the eyes for at least five days after the Lasik procedure. Most Lasik centers have some kind of eye guards to wear at night to prevent patients from rubbing their eyes in their sleep.
- Third, try to avoid eyestrain for some days after the Lasik procedure. It is tempting to try to read all of the signs and words that were previously blurry, but avoid this temptation at least for the large part. If any light sensitivity or glare is noticed, wear dark sunglasses for several days until this problem resolves itself. Some common Lasik side effects are temporary halos around lights, especially when viewed at night, but this is not a problem to be concerned with.
It is very important to keep the eyes well lubricated in the days following a Lasik operation. Every Lasik physician will give eye drops to help this, and patient should be especially aware of this before going to sleep. A Lasik procedure may increase eye dryness temporarily, and during sleep this may make the eyelid stick slightly to the eye. When the patient wakes up, opening the eyelid is equivalent to rubbing the eye. The physician should be notified if this happens, for there are other varieties of eye drops that will solve this problem.
Taking these simple steps will give nearly all Lasik patients an easy postoperative experience without any problems.
Read more: LASIK surgery FAQs
