Contact Lenses Fix an Astigmatism-

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Contact Lenses Fix an Astigmatism- Powered By Docstoc
					An astigmatism is one of the most common eye problems that exist. Because so many
people have an astigmatism, it is no surprise that there is a high demand for contact
lenses that can help correct this problem. In order to find out if any products are
available to help fix this condition, it is important to first understand what this issue is
and how lenses might be able to fix it.
  When explaining this condition, this metaphor is often used. Essentially, the
condition exists when your retina is shaped like a football, whereas a normal retina is
a sphere. There are actually two different types of an astigmatism. A regular
astigmatism is what most people will have. Essentially, the part of the eye that
requires the most power is 90 degrees away from the part that requires the least power.
Because this problem is a symmetrical problem, the correct contact lenses can often
fix this condition. An irregular astigmatism is when the cornea is is not smooth and/or
not asymmetrical Unfortunately, at this point there are no traditional lenses or glasses
that can fix this problem. However, sometimes rigid, gas permeable lenses are
medically required.
  Currently there are two different types of contact lenses that can help correct a
regular astigmatism. The first are GP or Gas Permeable lenses. These lenses are
semi-hard and will normally smaller than traditional corrective lenses. Essentially,
these lenses are perfectly spherical and your eyes natural moisture will fill in the small
gaps that exist between your eye and the lens They are popular because they allow for
clear and stable correction without surgery and are often the most economical choice.
However, if this is your first time wearing lenses then it may take some time for them
to feel comfortable. This is particularly because the material used is a little more solid
and leaves a small space between your eye and the contact itself.
  Soft toric lenses are the other common option. They are made from a hydrophilic
material and has built-in opposing meridians. The key for these to be effective is that
the lens must be properly aligned to the right parts of the eye. To date, there are a
variety of different lens designs to accomplish this, however the most commonly used
design is a prism ballast. Essentially part of the lens is thicker so it will naturally rest
on the bottom portion of the eye. The biggest advantage of this type of lens is that
they are naturally very comfortable and highly adaptable. This is also the only lens
that allows for overnight wear and comes in a variety of colors.
  While an astigmatism is one of the most annoying eye health problems, it is also one
of the easiest to correct. There are currently two different types of contact lenses: Gas
Permeable and Soft Toric. Each of these types of contact lenses brings a different set
of unique advantages and disadvantages to take into consideration The key is to find
the best solution for your specific situation and make sure to do your research about
each product before making a final decision.
  For more details about contact lenses & astigmatism, please visit us online.

				
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