7Hearing or Vision Problems
As the tumor or mass grows and develops, it would lead to some vision problems such as double vision or blurred vision. Everything seems to be out of the blue. Many people also lose their peripheral vision, which means that they cannot see anything on the side when they face forward. Hearing functions can also be affected. People with a brain tumor would lose their ability to hear in one hear or even both of them. It is better to have a doctor check your vision or hearing for better diagnosis. [7]
