The basal cornea surface (on which the laser is going to be used) has a high degree of uniformity. Unlike the cut with a blade that produces a meniscus type flap with thicker side edges and a thinner centre, the flap thickness is constant throughout its entire diameter, which in addition to making the surgery safer (minimising the frequency of complications due to irregular, incomplete or grooved cuts) also prevents anomalies caused by the meniscus shape inherent in cuts made with a blade.
The incidence of complications in preparing the corneal flap is minimised, enabling safe flaps to be made in delicate or weak cornea. By making a vertical peripheral edge the flap fits perfectly into the bed base, making its repositioning easier and minimising any subsequent movement and epithelium growth.
Both greater thickness control (avoiding deeper cuts than those planned) and making more delicate safe flaps, minimises the incidents of pathological cornea weakness after the operation.
The surgery will be more convenient for you, with less discomfort and unlike a technique using a blade you will not lose vision at any time during the operation.
The latest innovation however is to avoid making the corneal flap, by replacing this technique with a small incision, which is the so-called Relex Smile technique.