Function of Tests

• Eye cancer cannot be formally diagnosed without certain tests, even with symptoms.
  
  

Possible Symptoms

• Symptoms may include loss of vision, bulging of the eye, floaters or flashes of light, and a change in the position of the eye within or the way it moves within the socket.
  
  

Types of Tests

• One test to look for eye cancer is an eye exam with a dilated pupil where the eye doctor examines the inside of the eye. An indirect ophthalmoscopy uses a magnifying lens and a light. An ultrasound using echoes from sound waves to create a sonogram picture of the eye may also be performed.
  
  

Other Tests

• Other tests to diagnose eye cancer are a transillumination (putting a light on the lid to check the iris, cornea, lens and ciliary body) and a fluorescein angiography (injecting fluorescent dye into the bloodstream to monitor blood flow to the eye).
  
  

Solution

• After diagnosis, treatment is based on several factors, including size of the tumor, the patient's age and whether the cancer has spread.