What does it take to be a candidate for LASIK?

You may be considering LASIK, but are curious as to weather or not you are a candidate. Most people are LASIK candidates, but even those who are not can often have their vision improved by another procedure.

The first criterion is that your vision must be correctable with glasses. Some people are not able to see well with glasses or contact lenses. When that is the case, there is a good chance that a different procedure may be more beneficial.

We will also want to make sure that your prescription hasn't changed much recently. If you wear glasses, be sure to bring them in so that we can measure them. If you wear contact lenses, write down the prescription or bring the contact lens package with you.

The thickness of your corneas will be measured as a part of your pre-op evaluation. Thickness is important because LASIK surgery reshapes and thins the corneas. We need to make sure that your corneas will have the thickness that they need to hold their shape after LASIK surgery.

Another important factor is the shape of the cornea. We will create a topographic map of your cornea to see if there are irregular peaks which are not treated well with LASIK.

Irregular areas of steepness may indicate that the cornea is not stable. In order for LASIK to have a lasting effect, the cornea needs to be thick, strong and stable.

Contact lenses will warp the cornea temporarily and distort the corneal topography mapping. It is important to take your contacts out prior to your screening evaluation to avoid making extra trips to the office. Normal soft contact lenses should be taken out one full week prior to your examination. Toric lenses should be out for two full weeks, and hard contact lenses should be out for at least one full month prior to the examination.

We use strict screening criteria because we want every patient to have a wonderful lasting result following LASIK surgery. Approximately 90% of the patients that we see are great LASIK candidates. Those who are not suited for LASIK surgery can still have lasting vision improvements with another procedure such as an Active Life Lens procedure, Intacs or collagen crosslinking depending on each persons individual needs.

If you're ready to schedule your free consultation and find out if you're a candidate for LASIK at Mann Eye Institute, give us a call today, 1-800-MY-VISION. I look forward to seeing many of you in the Austin office soon.

Keratoconus: Dodging the cones

One in every 1,000 to 2,000 Americans is affected by Keratoconus, a degenerative disorder of the eye. Keratoconus causes the cornea to thin and change, resulting in a more conical shape instead of a gradual curve.

Keratoconus can cause vision distortion, streaking and sensitivity to light. It is typically diagnosed during childhood and gets worse into the twenties and thirties. The deterioration in vision can affect one’s ability to perform daily tasks like driving or reading.

The great news is that the treatment options for this debilitating disease have been progressing in the recent years. Previously, there were only two treatment options. A patient was given contact lenses to get the best possible vision. Once the contact lenses failed, the only option was a corneal transplant, which is less than optimal as there are serious long term complications, risks and vision issues associated with such a transplant.

Now at Mann Eye Institute, we offer several treatments to improve keratoconic patients’ vision and most importantly, prevent patients from having to undergo a corneal transplant. Our newest treatment option is collagen crosslinking.

Corneal collagen crosslinking (or CXR) is a procedure that is done to actually change the chemical make-up of the cornea. The cornea is exposed to a medicine (riboflavin) and then treated with a UV light. These two things combine to make new bonds within the cornea which strengthens it and creates a more rounded (less conical) shape.

CXR has been performed throughout the world for many years and is the primary surgical intervention in all European countries. It is newer in the US and has yet to be FDA approved, though studies are being performed to gain that approval and those of us who are passionate about doing what is best for our patients are offering the procedure with the proper informed consent.

CXR is just one of the treatments options available at Mann Eye Institute. If you are suffering from keratoconus, please schedule an appointment with us so we can help get your vision to its optimal state.

Photo credit: Eyerobics.com