In the early stage of eye cancer, there will be symptoms such as loss of vision, strabismus, white pupil and eye congestion. However, there is no such thing as five major symptoms of eye cancer in early stage. 1. Loss of vision: vision loss will occur when cancer causes destruction of vision function. 2. Strabismus: after vision loss, patients will be used to see things with normal vision eyes, while the eyes with vision loss will have useless strabismus. 3. White pupils: Normal pupils can be seen as black, but the pupils of cancer patients are white. 4. Bloodshot eyes: If the tumor invades the eye tissues, there will be bloodshot eyes. If the above symptoms occur, it is recommended to go to the hospital in time, so as to achieve good treatment results through early detection and early treatment.