May 20, 2011

New concept of LASIK method: ReLEx

ReLEx LASIK : Create corneal flap and adjust the thickness of corneal stroma with a single laser.

More and more people want to have vision correction surgery for better and convenient life because wearing and carrying glasses or contact lenses can be a real hassle. Ever since Dr. Baraker of Columbia University first performed vision correction surgery in 1949, medical technology for vision correction has been dramatically advanced.
An old vision of correction surgery first created the corneal flap with the blade, and then adjusted the thickness of corneal stroma with Eximer Laser to create proper corneal refraction for a better vision.
However, this process lacked its accuracy because the process was done manually by a surgeon's hands. To compensate for its lack of accuracy, all-laser assisted LASIK surgery - creating corneal flap with femtosecond laser and adjusting thickness of corneal stroma with eximer laser - was used to provides more accuracy in adjusting the thickness of corneal stroma, reducing any operative error in order to acquire better surgical result. However, all-laser LASIK surgery still had its disadvantages. The all-laser LASIK still needed at least two laser devices during the procedure, one to create the corneal flap and another to adjust the thickness of corneal stroma.
Recently, ReLEx LASIK, the latest surgical technology which only requires a single laser device, is introduced and took surgeons’ attention. ReLEx LASIK adapted visumax, the latest femtosecond laser which was approved by FDA, CE and KFDE for its safety. ReLEx LASIK surgery maximizes the efficiency and minimizes the operative time by simplifying surgical procedure from using 2 lasers to one.
The strongest point of ReLEx LASIK is the capability to create thinner corneal flap.
ReLEx can create 100 μ thickness of corneal flap whrereas old laser creates 120 μ to 150 μ. Thus, it is now possible to correct severe myopia that requires greater degree of corneal thickness adjustment. In addition, the diameter of corneal flap is also reduced to 6.25~6.5mm from 8.5~9.5mm, 40% reduction of existing corneal flaps. ReLEx LASIK is less likely to damage neighboring nerves or tissues of cornea, thus, reducing the occurance of pain or dry eye syndrome.
As laser vision correction technology gradually advances, a new laser device is introduced that overcomes shortcomings of conventional laser equipment. ReLEx LASIK surgery is expected to open a new chapter on vision correction field with its advanced technology enabling the entire surgical procedure with a single laser. Although the equipment takes a great part in vision correction surgery, you should never overlook the role of educated, well-trained and experienced surgeons.

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