Conventional IntraLASIK Surgery

A LASIK eye surgeon evaluates a patient

There are many different types of eye surgeries. The most popular type is LASIK. But did you know that there are also variations of LASIK? There are Custom Vue LASIK, Custom Vue IntraLASIK and Conventional IntraLASIK. Before we discuss the latter type, let us discuss first the basics of LASIK.

The main advantage in laser eye surgery is the fact that it addresses the main source of the problem. Unlike being prescribed contact lenses or eyeglasses, which only addresses symptoms, the result of LASIK is temporary. LASIK has the convenience of having a short downtime. Depending on the situation of the patient, in a span of few days or weeks, the person can already go back to work. Isn’t that convenient?

Conventional IntraLASIK is usually recommended to correct lower order aberrations. This accounts for approximately 90% of visual imperfections. Before patients undergo Conventional IntraLASIK, there are several guidelines one must know before undergoing IntraLASIK. First, the patient’s condition should be confirmed by the eye doctor through screening and tests. Second, the necessary pre-operation instructions should be followed properly. Lastly, there should be consent of the patient as it is very essential in all surgeries, whether it is major or minor.

On the day of the Conventional IntraLASIK surgery, the surgeon will cut a thin flap on the cornea which is the outer window of the eye. In doing this, a femtosecond intralase laser will be used. The flap will then be folded back in place so that the excimer laser will be used in reshaping the underlying corneal tissue. This step of reshaping the cornea is very important as it corrects simple prescriptions like astigmatism, nearsightedness or farsightedness. After that, the corneal flap will then be returned to its original place.

The remarkable thing with this type of IntraLASIK laser eye surgery is that there are many advantages in using a laser corneal flap than a microkeratome blade flap. First, there is unprecedented accuracy and safety in the flap position, shape, size, depth and hinge location since it is under computerized laser control. Second, flap thickness is reproducible to within 10-15 microns with its laser generated flaps compared to with the use of microkeratomes, which can only create 30-40 microns. This factor is very important as it is critical in patients with very thin corneas. Third, the formation of laser flap is more comfortable and predictable. It is very suitable to patients with corneas that are too small, steep, flat or thin. Fourth, laser flaps have the same thickness all throughout unlike if metal blade flaps will be used where the edges will be thicker at the edges. Being planar shapes is more recommended as it is tight fitting and less likely to shift, incular surface tissue ingrowth or develop wrinkles. Fifth, a study has shown that there is no significant induced unique imperfection when a laser flap is used. Another study has shown that retreatment rates went down by 64% when femtosecond laser flaps is used in IntraLASIK. Lastly, there is 73% less dry eye symptoms postoperatively when laser flap is used in Conventional IntraLASIK.

Overall, Conventional IntraLASIK surgery is one of the recommended eye surgeries nowadays. Its advantage stems from the fact that it uses a femtosecond intralase laser rather than a microkeratome blade. However, before undergoing IntraLASIK or any kinds of laser eye surgery, there should be proper screening and exams with the doctor to ensure that proper diagnosis was confirmed.

For more information about Conventional IntraLASIK and laser eye surgery, here are some links:

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