Lasik Eye Surgery
The eye and vision errors
The cornea is a part of the eye that helps focus light to create an image on the retina. It works in much the same way that the lens of a camera focuses light to create an image on film. The bending and focusing of light is also known as refraction. Usually the shape of the cornea and the eye are not perfect and the image on the retina is out-of-focus (blurred) or distorted. These imperfections in the focusing power of the eye are called refractive errors. There are three primary types of refractive errors: myopia, hyperopia and astigmatism. People with myopia, or nearsightedness, have more difficulty seeing distant objects as clearly as near objects. Persons with hyperopia, or farsightedness, have more difficulty seeing near objects as clearly as distant objects. Astigmatism is a distortion of the image on the retina caused by irregularities in the cornea or lens of the eye. Combinations of myopia and astigmatism or hyperopia and astigmatism are common. Glasses or contact lenses are designed to compensate for the eye's imperfections. Surgical procedures aimed at improving the focusing power of the eye are called refractive surgery. We perform LASIK, LASEK and Topography and Wavefront guided LASIK/LASEK (or customized LASIK/LASEK) surgeries for vision correction.
LASIK & LASEK
By creating a corneal flap with microkeratome and using the computer guided excimer laser beam to cut and permanently reshape the cornea, LASIK and LASEK restore the eye vision and restore you sharp eagle eye. The procedure takes about 20 minutes. Anaesthetic is applied before the operation to make the operation painless. A device is used to create a small flap on the surface of the cornea. The excimer laser bean is then focused on the corneal surface for between 10 to 30 seconds to permanently reshape the cornea by precise selective tissue removal.
Differences between LASIK and LASEK
LASIK, Laser Insitu Keratomileusis shares almost the same surgery procedure with LASEK, Laser Assisted Sub-Epithelial Keratectomy, but they treat different parts of cornea. In LASIK, A 110-160 micron-thick flasp is made with all three sections of the cornea including the Epithelial layer, the Boman's membrane and the Stromal layer. In LAEK, however, an only 50-80 micron-thick flap is created from just the Epithelial layer. Therefore, LASEK may be the only solution to people with thinner cornea. The LASEK recovery time is a bit longer than with LASIK. Also, there is more discomfort with LASEK but this usually lasts only a few days.
Topography and Wavefront guided LASIK/LASEK
No two eyes are the same. Your vision is unique. The Topography-guided and Wavefront-guided LASIK/LASEK provides laser vision correction with a personalized solution. In other words, you can customize your vision.
The topography and wavefront technology produces a precise, detailed analysis of vision and a personalized May. This map coordinates with Excimer Laser System to create a vision correction plan which can produce the precise result you want.
Also Topography and Wavefront technology have the potential to improve not only how much you see but also how well you see, i.e. contrast sensitivity and fine detail.
How much you see depends on lower-order aberrations which how well you see depends on higher-order aberrations. Lower-order aberrations include myopia, hyperopia and astigmatism. Traditional LASIK/LASEK treats these lower-order aberrations. Higher-order aberrations are irregularities, and can cause such problems as decreased contrast sensitivity or night vision, glare, shadows and halos. Higher-order aberrations do not always affect vision but it decide the vision quality.
Topography-quided and wavefront-guided LASIK/LASEK treats both lower-order and higher-order aberrations.
Cost
LASIK Surgery（Laser in Situ Keratomileusis) both eyes US$1,195
LASEK Surgery (Assisted Sub-Epithelial Keratectomy) both eyes US$1,158
Topography and Wavefront Guided (customized) LASIK both eyes US$1,642
Topography and Wavefront Guided (customized) LASEK both eyes US$1,760
Question or Inquiry?
For more information, please contact us at info@mkjourneys.com
