This test is similar to an ultrasound, but it uses light waves instead of sound waves to create very detailed images of the back of the eye. Ultrasound biomicroscopy (UBM) : This is a special type of ultrasound that uses high-energy sound waves to create very detailed images of the front parts of the eye. If you have already been diagnosed with eye melanoma, an ultrasound of your abdomen may be done to look for tumors in the liver, which is a common site of spread of this cancer. This test can also show the location and the size of the tumor. Using this test, doctors can confirm a diagnosis of melanoma of the eye in most cases. This test is especially useful for diagnosing eye melanomas because they look a certain way on ultrasound. The echoes are converted into an image on a computer screen. For this test, a small wand-like instrument is placed up against the eyelid or eyeball, sends sound waves through the eye, and picks up the echoes as they bounce off the organs. Ultrasound uses sound waves and their echoes to make pictures of internal organs or masses. Ultrasound is a very common test used to help diagnose eye melanomas. To look for possible signs of cancer coming back after treatment.To help determine the stage (extent) of the cancer.To help find a suspicious area that might be cancer.These tests might be done for a number of reasons, including: Imaging tests use sound waves, x-rays, or magnetic fields, or radioactive particles to create pictures of the inside of your body. If an eye exam suggests you might have eye cancer, more tests such as imaging tests or other procedures might be done to confirm the diagnosis. Sometimes these tumors are missed or grow so fast that they weren’t there when you were last examined. It can be used to look for tumor growth into areas of the eye that would otherwise be hard to see.Įven if you recently had an eye exam, if you start to have any symptoms, get another exam. A gonioscopy lens is a specially mirrored lens that is placed on the cornea (the outer part of the eye) after it is numbed.With an indirect ophthalmoscope, the doctor has you recline a bit, opens your eye, and holds the magnifying lens very close to it while a bright light shines into the eye. With either instrument, the doctor looks into your eye through a stronger magnified lens, but the slit lamp tends to have more magnification and sits still on a platform in front of you. To get a more detailed view than with a direct ophthalmoscope, an indirect ophthalmoscope or a slit lamp may be used.An ophthalmoscope (also known as a direct ophthalmoscope) is a hand-held instrument consisting of a light and a small magnifying lens.You may get drops in your eye to dilate the pupil before the doctor uses these instruments. The ophthalmologist may also use special instruments to get a good look inside the eye for a tumor or other abnormality. The doctor will also look for enlarged blood vessels on the outside of the eye, which can be a sign of a tumor inside the eye. The doctor will ask if you are having any symptoms and check your vision and eye movement. Examination of the eye by an ophthalmologist (a medical doctor specializing in eye diseases) is often the most important first step in diagnosing melanoma of the eye.
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