Lasik info(レーシックインフォ)
レーシックって何？What is LASIK?
What is LASIK?
LASIK stands for laser-assisted in situ keratomileusis (whew! What a name!).
The traditional procedure involves cutting a flap in the stroma of the eye and
use of an excimer laser to reshape the cornea, producing better vision. Most
people assume LASIK is the only refractive surgery available to help correct
visual disturbances. This couldn't be further from the truth.
different types of LASIK procedures
Wavefront LASIK(ウェーブフロントレーシック) (Custom LASIK)
- this procedure, often-called wavefront or
wavefront-guided LASIK, allows more precision surgical intervention by
providing doctors with a 3D map of the cornea and eye. Using this map,
surgeons are able to offer more exact vision correction.
Many traditional surgeons are turning to this technique as it offers fewer
risks for complication.
PRK (Custom LASIK)
- PRK refers to photo refractive keratectomy.
This refractive surgery was more popular than LASIK before
lasik procedures became well known. This procedure involves slower
response and healing times among patients but is a good choice for patients
with complications or risk factors including thinner corneas or larger than
average pupils. PRK uses an excimer laser to help reshape the cornea.
PRK is helpful for those with hyperopia and myopia.
LASEK - (Custom LASIK)
- this stands for laser epithelial keratomileusis, and is a new procedure
similar to the original PRK procedure.
Sometimes referred to as E-LASIK, this procedure is typically the best choice for patients
with thin corneas or those with flat corneas. Patients with these risk factors are more
likely to experience complications with traditional LASIK surgery. This procedure allows a
surgeon to use a fine tool (trephine) instead of the microkeratome to cut the corneal flap
needed to perform laser surgery. The surgeon typically follows by coating the eye in a
solution of alcohol and water to help loosen the epithelium. An excimer laser can then
be used to sculpt the tissue lying below. Some patients report minor eye irritation following
surgery, and typically recovery times are a bit longer than traditional lasik
(up to four days usually, but can be as long as seven).