Do
you wear contacts or glasses in order to see clearly?
If you do, Dr. Baribeau may be able to open a whole new world
of clear, natural vision for you. Gain new confidence and enhance
your lifestyle with the help of LASIK Eye Institute.
Dr. Baribeau has been at the forefront of laser vision correction
technology since it began in the 1990's. He is committed to using
the most advanced, state-of-the-art excimer laser known as the
LADARVision 4000.
What
is Normal Vision?
When a person enjoys normal vision without glasses or contacts,
light rays enter the eye through the front, clear portion of the
eye known as the cornea. From there, the light rays pass through
the lens of the eye where they are precisely focused on the retina.
The retina converts these light images into electrical signals,
where they are passed through the optic nerve to the brain. Clear
vision results.
Much like the lens of a camera, if the cornea fails to focus these
images properly on the retina, blurred or distorted images can
result.
Common Refractive Disorders:
The most common refractive vision disorders are known as nearsightedness
(myopia), farsightedness (hyperopia), and astigmatism. While most
times these disorders occur separately in a person's vision, they
can be present in the cornea at the same time.
Nearsightedness
(myopia) occurs when the cornea of the eye is too steep
in curvature, causing light rays to focus in front of the retina
instead of directly on the retina. This results in near images
being in focus, while far away images are blurred.
Farsightedness
(hyperopia) occurs when the cornea of the eye is too
flat in curvature, causing light rays to focus behind the retina
instead of directly on the retina. This results in far away images
being in focus, while near images are blurred
Astigmatism occurs when the surface of the cornea has an irregular shape to
it, causing light images to focus on multiple areas within the
eye. This can result in blurred or double images. As illustrated
on the right, this condition can also occur in conjunction with
nearsightedness.
