| CATARACTS
A cataract is a cloudiness that develops in the natural lens of
the eye. Cataracts occur because of the aging process, may be inherited,
and may occur as the result of eye injuries, systemic diseases or medications.
As the lens becomes cloudy, vision becomes blurred.
Your
doctor will guide you when the blurring of your vision prevents
you from seeing to do your normal activities such as reading or
driving.
GLAUCOMA
Glaucoma is a disease of the eye usually associated with an elevated
intraocular pressure. The elevated eye pressure can cause damage
to the optic nerve, with resulting vision loss and blindness. Glaucoma
may be inherited or may be caused as a result of the aging process,
following eye injuries, or be secondary to medications and systemic
diseases.
The
two most common types are:
Open angle glaucoma - This is the most
common type. It occurs in about 2% of the population, and makes
up 90% of all glaucoma patients. It is associated with elevated
intraocular pressure because of deterioration in the channels which
drain fluid from the eye. Unfortunately, there are no symptoms so
that it has to be diagnosed by having an eye exam. Symptoms only
occur in the advanced stage when an individual is losing vision.
Eye exams are very important to detect this type of glaucoma.
Narrow
angle glaucoma
- This usually occurs in the older age group. In this type of glaucoma,
the iris or colored part of the eye obstructs the drainage channels
of the eye. This may occur very suddenly, resulting in a rapid increase
in ocular pressure, and is usually very painful, with blurred vision
and nausea.
MACULAR DEGENERATION
The macula of the eye is the central part of the retina, the part
which is used for detailed vision such as reading and recognizing
people. Damage to or destruction of the macula is known as macular
degeneration. When macular degeneration is fully developed, the
individual is unable to read, drive or recognize people. There are
two primary types of macular degeneration, the dry type and the
wet type.
Dry-Type
Macular Degeneration - In the dry type, the deterioration
in the macular area of the retina and the deterioration in the vision
are slow and gradual, and may occur over a period of years. There
is often a family history of macular degeneration, and frequently
changes in the retina, called drusen, are present before the actual
degeneration occurs. There is no treatment of proven value for the
dry type of macular degeneration, although nutritional supplements
are used often.
Wet-Type
Macular Degeneration - The wet type of macular degeneration
usually begins abruptly with a change in or loss of vision associated
with a hemorrhage or an abnormal blood vessel membrane developing
in the macular area of the retina. Vision loss is often severe immediately.
Treatment consist of both laser and injections of Lucenta.
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