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LASEK (Laser Assisted Sub-Epithelial Keratomileusis) is usually performed as an outpatient procedure using topical anesthesia with eyedrops. Your ophthalmologist (Eye M.D.) uses an alcohol solution to loosen and peel back the epithelium, the outermost layer of the cornea, to expose the corneal tissue beneath it. A cool excimer laser is used to permanently reshape the cornea, and the epithelium is either placed back into position, where it will selfadhere, or is removed completely, in which case the epithelium heals inward from the corneal periphery in just a few days.

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: They are 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.
 

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  MYOPIA (Nearsighted)   HYPEROPIA (Farsighted)
     
 

Light rays are focused in front of the retina instead of directly on the retina

 

Light rays are not bent enough to focus directly on the retina

 
  ASTIGMATISM   LASEK  
     
 

Light rays are focused at more than one point on the retina

 

The Cornea is reshaped so light rays can focus directly on the retina

 

To treat nearsightedness, the cornea is made flatter by removing tissue from the center of the cornea.

To treat farsightedness, the flat cornea is made steeper by removing peripheral tissue in a ring shape on the outer edges of the cornea. This steepens the central visual part of the cornea.

To treat astigmatism, the cornea is made less oval shaped. Astigmatism means that the eye has an oval or football shape.

The laser reduces the oval shape making the focusing ability clear in all directions. Astigmatism can be treated at the same time as nearsightedness and farsightedness.
 

Visual recovery after LASEK is generally faster than in PRK, a little slower than Epi-Lasik, but slower than Lasik.

 
The FDA has approved laser vision correction
as an alternative to eyeglasses and contact lens
 
LASEK-Nearsighted
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LASEK-Farsighted
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LASEK-Astigmatism
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This type of laser vision correction does not require any corneal incision at all. A mild alcohol solution is placed on the corneal to loosen the top layer of tissue. Only the most superficial layer of the cornea is gently brushed aside. This thin flap is then replaced after the laser reshaping is complete. Less tissue is removed than with traditional Lasik.

A contact lens is placed on the cornea shortly after surgery as a bandage for several days to aid in the healing process. It normally takes three to ten days for the epithelium to heal and resurface the cornea. This healing time varies depending on a number of factors such as the size of the area treated, the health of the patient's cornea and the individual's own healing rate.
 

 
 
Chillicothe 50 N. Plaza Blvd Chillicothe, OH 45601 Phone: (740) 774-4434 Fax: (740) 774-4061
Circleville 24200 US 23 South Circleville, OH 43113 Phone: (740) 477-7200 Fax: (740) 477-8349
Grove City 3989 Jackpot Road Grove City, OH 43123 Phone: (614) 801-9111 Fax: 614) 801-1643
Lancaster 676 E Main Street Lancaster, OH 43130 Phone: (740) 681-1911 Fax: (740) 654-7109
Portsmouth 1400 Gay Street Portsmouth, OH 45662 Phone: (740) 351-0999 Fax: (740) 351-0989
Washington Court House 420 East Court Street Washington Court House, OH 43160 Phone: (740) 335-7200 Fax: (740) 335-7200
Waverly Waverly 505 W Emmitt Ave., Ste. 4 Waverly, OH 45690 Phone: (740) 941-3937 Fax: (740) 941-3786
Wilmington 721 W Main Street Wilmington, OH 45177 Phone: (937) 382-7724 Fax: (937) 382-7726

Eye Specialists of Ohio provide Lasik and cataract eye surgery in Lancaster, Chilicothe, Circleville, Grove City, Portsmouth, Washington Court House, Waverly and Wilmington.

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