Eye cancer is caused due to the growth of the malignant cells present in eye tissues. In case of adults, most cancers of eyes are the secondary tumors which spread to them from the other body parts; mostly the breast. There are instances when the cancer spreads from the lungs, prostate glands and the kidneys to the eyes. The spread of cancer to the eyes from these different body parts is through the lymphatic system or the bloodstream. The ophthalmologists conduct a complete examination of the eyes during eye cancer diagnosis.
Generally, diagnosis of eye cancer necessitates anesthesia for young children. Additionally, Computed Tomography (CT) scan or ultrasound examinations are also needed for diagnosing eye cancer. The ultrasound method is usually preferred over other ways for detecting this cancer type. Along with these examinations, lumbar puncture and studies of the blood might also be needed for the diagnosis.
There are two primary types of tumors that arise inside the eyes of humans; namely melanomas and retinoblastomas. Amongst these two types, retinoblasotma, which is the common and primary form of eye cancer affects young children below the age of five. Adults are mostly affected by malignant melanoma. The average age between which this affects the adults is 60-65 years.
Most of the cases of eye cancer affect only one of the eyes; however, retinoblastoma affects both the eyes in most cases. Though the symptoms of eye cancer are not quite evident during the early stages for any eye cancer form, the growth of the tumors may increase the pain and cause impairment of the vision in regards to eye cancer. Moreover, the cancers which originate from the eyes can spread to other parts outside the eyes, such as the brain, optic nerve, or other body parts. All this necessitates that the cancer is detected early and the treatment is rendered immediately.
Eye cancer treatment has the aim of destroying the cancerous cells, preserving the eyesight and relieving the patient from the symptoms of eye cancer as far as possible. The treatment rendered to secondary tumors of the eyes are also aimed at treating primary cancer in other parts of the body.
The reason for the arrival of primary melanomas of the eye is yet to be known. When the eyes are exposed to ultraviolet rays; either from tanning beds or directly the sun, the risk of melanoma rises. The most primary or common metastatic eye cancer cause in adults is spreading of tumors from other body parts. In the case of retinoblastoma, genetics can play a vital role.
The eye cancer symptoms include vision loss, gradual distortion, or loss in the field of vision for the eye which is affected. The cancer also causes redness and pain to the eyes along with watering and swelling. You may witness different colors in each of the iris of the eyes along with flashes and floaters in the vision field.
It is always better that you take precautionary measures for prevention of eye cancer. Eye cancer diagnosis can be dangerous and hence preventing it is better than cure. You can learn more here about eye cancer treatment, symptoms and prevention methods.