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Eye Examination Eyewear Lens Designs Contact Lens Service Emergency Service Laser Vision Correction Dry Eye Syndrome In Office Finishing |
Laser Vision CorrectionThe doctors of Primary Eyecare Professionals provide co-management of laser vision correction procedures. We are capable of answering the questions that many patients will have about their surgical options. Feel free to schedule a Laser Vision Correction Consultation today. What is LASIK? 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 Other types of refractive surgery Radial Keratotomy or RK and Photorefractive Keratectomy or PRK are other refractive surgeries used to reshape the cornea. In RK, a very sharp knife is used to cut slits in the cornea changing its shape. PRK was the first surgical procedure developed to reshape the cornea, by sculpting, using a laser. Later, LASIK was developed. The same type of laser is used for LASIK and PRK. Often the exact same laser is used for the two types of surgery. The major difference between the two surgeries is the way that the stroma, the middle layer of the cornea, is exposed before it is vaporized with the laser. In PRK, the top layer of the cornea, called the epithelium, is scraped away to expose the stromal layer underneath. In LASIK, a flap is cut in the stromal layer and the flap is folded back.Another type of refractive surgery is thermokeratoplasty in which heat is used to reshape the cornea. The source of the heat can be a laser, but it is a different kind of laser than is used for LASIK and PRK. Other refractive devices include corneal ring segments that are inserted into the stroma and special contact lenses that temporarily reshape the cornea (orthokeratology). Primary Eyecare Professionals is proud to work with the following Laser Vision Correction facilities: Fisher-Swale-Nicholson Eye Center **Information from Center for Devices and Radiological Health/CDRH |
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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. Persons 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. In LASIK surgery, precise and controlled removal of corneal
tissue by a special laser reshapes the cornea changing its focusing
power.