Eye
cancer symptoms vary, depending on the type of cancer suffered. Some of the
symptoms that can occur in the eye cancer, among others are:
•
There is a dark spot on the iris. These dark spots appear on melanoma of the
iris and can be seen in spy inspection routine.
•
Experiencing eyesight trouble.
•
the range and fields of view
•
See the objects like fluttering (floaters), stripes, or spots.
•
See the flashing-flashing lights.
These
symptoms can also arise due to other diseases, other than cancer of the eye.
And sometimes eye cancer, intraocular melanoma, in particular, do not show
symptoms. Intraocular Melanoma is often first detected upon examination of the
eye. Because the eye cancer symptoms are not specific, then it is highly recommended
to undergo the procedure for diagnosis if it is reasonably experienced any of
these symptoms.
Retinoblastoma
symptoms more specific than other types of eye cancer. Even so, the symptoms of
retinoblastoma are often too hard to be known so that need further
examination. Some symptoms of
retinoblastoma among others are:
•
Eyed squint.
•
discoloration of the iris of the eye.
•
the vision is less good.
•
red eyes and experiencing inflammation.
•
Emerging reflections (reflection) is white in the pupil of the eye, which can
be seen at the moment was photographed in a dark room. A reasonable pupil
reflection at the time photographed usually red.
Cause Of Eye Cancer
Cause
of eye cancer that is known so far is due to gene mutation on the network,
particularly genes that regulate cell growth. in normal conditions, the cell
will divide regularly and periodically to replace cells that are already
damaged. To prevent the cells from not splitting wild and uncontrolled, there
are genes that regulate the cell when to start and stop splitting.
Eye
cancer is caused by changes to the DNA in a gene that regulates cell division
network. Changes of DNA in the gene that causes cell division regulator gene
does not function, so the eye cells divide without control. However, until now
the cause DNA mutations in these genes is still unknown.
A
person is more easily affected by intraocular melanoma if:
•
White Skinned.
•
Have eye color brighter, such as blue or green, than people with dark eyes.
•
have a history of certain disorders or abnormalities, such as having many moles
(dysplastic nevus syndrome) or black spots on the eyes (nevus of Ota)
•
have a family with a history of intraocular melanoma.
Some
suspect a research of other factors, such as exposure to sunlight or
ultraviolet light, which also lead to the occurrence of melanoma on the skin.
Some types of work are also thought can increase the risk of a person affected
by melanoma, such as welders, fishermen, farmers, or work related to dangerous
chemicals.
Specifically
for retinoblastoma, is currently not yet known for certain things that can
cause a person to suffer the disease easier. While the intraocular Lymphoma, it
is easier to occur in people who suffer from HIV/AIDS or undergoing immunosuppressive
treatment after organ grafts.
Diagnosis Of Eye Cancer
Examination
and diagnosis against eye cancer symptoms are very important so that cancer can
be detected early on. Most major diagnostic methods to detect cancer of the eye
is an eye examination. An eye examination can be carried out with the help of
tools, like ophthalmoscopy and gonioscopy lenses. The patient checked related:
• Symptoms experienced, including
the history of the emergence of symptoms of eye cancer.
• the ability of the vision of the
eye.
• the movement of the eyeballs.
• the blood vessels of the eye, to
check for dilation of the blood vessels in the eye.
• Vitreous humor, an i.e. clear
liquid such as jelly in the eyeball. If an intraocular Lymphoma, usually the
vitreous humor would suffer numbness.
Intraocular
lymphoma is often about both eyes. However, in certain cases can also only
occur in one eye. Intraocular melanoma early can be known only through an
examination of the eye. In order for more accurate test results as well as the
known rate of growth and spread of cancer, patients can undergo such a
proponent of examination:
• Scanning. Scanning such as ULTRASOUND, CT scan, or MRI works to find out the
location and size of the cancer cells. Scanning can also be done to the other
organs, in addition to the eye, to detect the spread of cancer to other organs,
such as chest x-rays, an ultrasound of the heart, or PET Scan.
• Biopsy. A biopsy is done by taking a sample of the alleged spy network suffered
cancer and examined under a microscope. A biopsy is rarely performed as a
method of diagnosis, unless absolutely necessary because it is difficult to
take tissue samples without causing eye damage.
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