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.

Keion Moradi asked:


Medical advancement has improved the precision and safety of traditional Lasik. It has also made room for other forms of Lasik. Patients who find they do not meet the ideal standards as a candidate for Lasik have other options. Lasik eye surgery can now accommodate a variety of needs for vision correction. Learn about how to improve your night vision with Lasik.

Traditional Lasik

Lasik is the preferred procedure for many Americans with nearsightedness, farsightedness and astigmatism. An outpatient procedure that usually takes about 15 minutes, Lasik is performed with a microkeratome blade. The laser eye surgeon creates a flap in the outermost corneal layer. An excimer laser reshapes the cornea, and the flap is then replaced as a natural bandage.

Low Order Aberrations Vs. High Order Aberrations

Lasik is a simple procedure, but many patients have vision correction needs that traditional Lasik is not designed to address. Traditional Lasik is most beneficial to patients with low-order aberrations. Refractive errors such as myopia (nearsightedness), hyperopia (farsightedness) and astigmatism are low-order aberrations that can be corrected with traditional Lasik.

Improve Night Vision With Custom Lasik Surgery

Custom Lasik addresses not only low-order aberrations, but also more complex, difficult-to-detect aberrations. Patients with large pupils, low contrast sensitivity and thin corneas may be able to improve night vision through Custom Lasik. Low-contrast sensitivity is a high order aberration which makes it difficult to see an object against a low-contrast background. People with large pupils are not only prone to poor night vision, but traditional Lasik can also worsen the aberration.

Custom Lasik, Custom Results

Custom Lasik uses wavefront technology to pinpoint refractive errors that are undetectable through traditional Lasik. Wavefront technology creates three-dimensional chart of the cornea, measuring how your eye focuses light. Custom Lasik corrects visual acuity, as well as, visual quality. Lasers guided through wavefront technology are more precise and individualized for each patient.

Custom Lasik may also be the best option for patients with previous laser eye surgery. Custom Lasik can be the answer for correcting past laser eye surgery, with unsuccessful results. Patients who experience complications from traditional Lasik, such as light sensitivity, night glare and halos, may find relief through Custom Lasik.

Lasik Cost

The cost of Lasik surgery can range anywhere from $499 to $2,500. Cost is determined based on the type of Lasik surgery and the condition of your eyes. When making a decision about which type of laser eye surgery will work best with your needs and budget, keep in mind any conditions that may increase the risk of postoperative complications associated with traditional Lasik. Custom Lasik is the most expensive for of Lasik surgery, but may also prevent the need for additional surgeries. If you’re looking specifically to improve night vision, Custom Lasik may be the best route to take.

Because Lasik is considered an elective procedure, most insurance companies will not cover the cost. However, there are many financing options available. Your Lasik surgeon may provide a payment plan. He or she may also work with a few financial institutions. In this case, you may be able to take care of the application process directly at the doctor’s office.