Ranju Kumar asked:


LASIK eye surgery is a medical procedure that can correct your vision by altering the physical properties of your eye. Unlike traditional surgical procedures that depend upon the skills and steadiness of the surgeon’s hand, LASIK eye surgery is computer controlled.

The more progressive LASIK surgery centers perform in-depth analysis of your eyes as an evaluation procedure to determine if you’re a good candidate for the LASIK procedure. The evaluation process, which is largely controlled by computer itself, maps the overall physical makeup of each eye. A traditional eye exam determines your visual abilities and then an exhaustive computer analysis determines if your eyes can be enhanced by the LASIK procedure.

In addition to determining whether or not you’re a good candidate for LASIK, the procedure also records quite a bit of data that’s specific to your eyes. If you choose to proceed with the LASIK surgery, this data is used to program the computer controlled LASIK equipment to insure that your eyes are modified exactly in the proper manner so as to provide maximum benefit.

How Your Eyes Work

The cornea of the eye is responsible for projecting light onto the retina in order to produce an image. When the cornea is not shaped properly, distortion of the image will occur. This is called a refractive error. LASIK eye surgery can correct refractive errors.

There are three primary types of refractive errors -

1) Myopia is a refractive error in which a person has trouble seeing things at a distance, but they can see things that are close up.

2) Hyperopia is when a person will be able to see things clearly at a distance but cannot see things that are close to them.

3) Astigmatism is the distortion of images caused by irregularities in the shape of the cornea.

LASIK eye surgery is also called refractive surgery because it will reshape the cornea, therefore improving the ability to focus clearly.

Not everyone is a good candidate for LASIK eye surgery. To be a good candidate for LASIK eye surgery, you have to be willing to accepts the risks that go along with this type of surgery. Your eyesight should be stable, meaning that it hasn’t changed appreciably over the past several years. Also, you shouldn’t have any existing health conditions that would put you at risk while having LASIK eye surgery.

Risks of LASIK Eye Surgery

LASIK eye surgery does carry some risks, such as loss of vision. In some extremely rare cases, the patient may lose vision due to equipment malfunction, scarring or healing related complications.

One common risk of LASIK eye surgery is that any dry eye condition that is experienced right after surgery may hamper the healing process. Signs of dryness are burning, redness and decreased vision. If this dry eye condition persists, you may have to medicate to improve tear duct function and use artificial tears to maintain the proper level of moisture. You must keep your eyes moist after LASIK surgery in order to promote healing.

Things to do Before LASIK Surgery

If you wear contact lenses, either soft contacts or rigid contacts, you should stop wearing your contacts at least three weeks before your initial evaluation by the doctor. On the day of surgery, you shouldn’t wear makeup or perfumes. Also, don’t wear any fuzzy clothing that is likely to disperse lint.

Make sure that someone goes with you on the day of surgery, since you’ll need someone to drive you home after the LASIK procedure. Before the surgery, the doctor may give you medicine to relax you and your vision may be a little blurry immediately following surgery. Also, special eye drops are administered prior to the procedure which can cause additional, but temporary blurriness.

LASIK eye surgery is relatively safe and it can free you from glasses and contacts. Before you commit to LASIK surgery, make sure that you consider all the advantages and disadvantages of having the procedure. Ask the doctor lots of questions so that you can make an informed decision about whether LASIK eye surgery is the right choice for you.



Troy

Patricia Woloch asked:


In the 1990s, in the rush to offer this miraculous new vision correction to the public, some ophthalmologists failed to screen potential patients well enough. LASIK is not safe for everybody. This was quickly realized, and screening became more careful and strict.

If a LASIK surgeon has said you are not a good candidate for LASIK, there could be various reasons for that – related to your eye health, general health, prescription stability, or expectations. But there are also various ways of doing LASIK that have been developed to correct vision for people who are not good candidates for traditional LASIK.

If you have corneas which are too thin or too steep in curvature for LASIK, you can consider Intralase, LASEK, or epi-LASIK, all of which have modified ways of creating the corneal flap. That flap is done to expose the next layer down in the cornea, the stroma, where your LASIK surgeon will direct the laser. Intralase, LASEK and epi-LASIK cut the flap more thinly so as not to weaken the cornea.

Complications vs Side Effects

Keep in mind that complications are different from side effects. A side effect is temporary and minor, although it may be annoying or uncomfortable at the time. LASIK side effects are such things as dry eyes, itching, or a scratchy feeling, which last only a few days, if you have them at all. If you tend to have dry eyes before LASIK is done, that is a disqualifying condition.

Complications are more major conditions which may require a second surgery, or more long-term treatment, and some can even give permanent trouble, but this is very rare.

Wavefront-Guided LASIK

In the early days of LASIK, before wavefront technology was developed, there was a higher rate of complications after LASIK. Wavefront technology is an extremely precise way of diagnosing the eye’s refractive error. It gathers detailed information from which it creates a 3-D map of each eye. Your LASIK doctor then bases your treatment on this information. Most LASIK surgeons now offer LASIK in this form.

Use of wavefront-guided technology gives a more precisely customized treatment for each eye – in fact each treatment is one-of-a-kind. Nobody ever has or ever will receive the same treatment that your right eye will receive. Not even your left eye. By being so exact, it prevents some of the vision distortions that used to be side effects or complications from traditional LASIK. They are things like:

• Poor night vision

• Double vision (also called ghosting)

• Halos

• Starbursts

• Glare around light sources

Potential LASIK Complications

No matter how sophisticated technology becomes, or how many LASIK techniques are developed to expand the pool of safe candidates, LASIK is still a surgery. All surgery brings a certain amount of risk. It is one of the requirements of good candidacy that you accept that fact, and are willing to take a very small risk to obtain a very large and amazing improvement in your vision.

LASIK complications are very rare, less than one percent.

• Infection beneath the corneal flap – usually prevented by antibiotic eyedrops, but sometimes a person doesn’t use them according to the LASIK surgeon’s directions

• Faulty flap healing – can often be corrected by subsequent surgery

• Corneal ectasia – can be an ongoing problem, treated as keratoconus

• Irregularities resulting from faulty flap creation – these can give you those vision distortions listed above

The best way to minimize any chance of LASIK complications is to choose a highly-trained and experienced LASIK surgeon. Choose one who screens patients very thoroughly, answers your questions clearly, has invested in a wavefront-guided LASIK system, and does not pass you off to an assistant.



Ann

Carson Danfield asked:


LASIK eye surgery is a medical procedure that can correct your vision by altering the physical properties of your eye. Unlike traditional surgical procedures that depend upon the skills and steadiness of the surgeon’s hand, LASIK eye surgery is computer controlled.

The more progressive LASIK surgery centers perform in-depth analysis of your eyes as an evaluation procedure to determine if you’re a good candidate for the LASIK procedure. The evaluation process, which is largely controlled by computer itself, maps the overall physical makeup of each eye. A traditional eye exam determines your visual abilities and then an exhaustive computer analysis determines if your eyes can be enhanced by the LASIK procedure.

In addition to determining whether or not you’re a good candidate for LASIK, the procedure also records quite a bit of data that’s specific to your eyes. If you choose to proceed with the LASIK surgery, this data is used to program the computer controlled LASIK equipment to insure that your eyes are modified exactly in the proper manner so as to provide maximum benefit.

How Your Eyes Work

The cornea of the eye is responsible for projecting light onto the retina in order to produce an image. When the cornea is not shaped properly, distortion of the image will occur. This is called a refractive error. LASIK eye surgery can correct refractive errors.

There are three primary types of refractive errors -

1) Myopia is a refractive error in which a person has trouble seeing things at a distance, but they can see things that are close up.

2) Hyperopia is when a person will be able to see things clearly at a distance but cannot see things that are close to them.

3) Astigmatism is the distortion of images caused by irregularities in the shape of the cornea.

LASIK eye surgery is also called refractive surgery because it will reshape the cornea, therefore improving the ability to focus clearly.

Not everyone is a good candidate for LASIK eye surgery. To be a good candidate for LASIK eye surgery, you have to be willing to accepts the risks that go along with this type of surgery. Your eyesight should be stable, meaning that it hasn’t changed appreciably over the past several years. Also, you shouldn’t have any existing health conditions that would put you at risk while having LASIK eye surgery.

Risks of LASIK Eye Surgery

LASIK eye surgery does carry some risks, such as loss of vision. In some extremely rare cases, the patient may lose vision due to equipment malfunction, scarring or healing related complications.

One common risk of LASIK eye surgery is that any dry eye condition that is experienced right after surgery may hamper the healing process. Signs of dryness are burning, redness and decreased vision. If this dry eye condition persists, you may have to medicate to improve tear duct function and use artificial tears to maintain the proper level of moisture. You must keep your eyes moist after LASIK surgery in order to promote healing.

Things to do Before LASIK Surgery

If you wear contact lenses, either soft contacts or rigid contacts, you should stop wearing your contacts at least three weeks before your initial evaluation by the doctor. On the day of surgery, you shouldn’t wear makeup or perfumes. Also, don’t wear any fuzzy clothing that is likely to disperse lint.

Make sure that someone goes with you on the day of surgery, since you’ll need someone to drive you home after the LASIK procedure. Before the surgery, the doctor may give you medicine to relax you and your vision may be a little blurry immediately following surgery. Also, special eye drops are administered prior to the procedure which can cause additional, but temporary blurriness.

LASIK eye surgery is relatively safe and it can free you from glasses and contacts. Before you commit to LASIK surgery, make sure that you consider all the advantages and disadvantages of having the procedure. Ask the doctor lots of questions so that you can make an informed decision about whether LASIK eye surgery is the right choice for you.



Christina

Miodrag Trajkovic asked:


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!



Grace