The location or type of a brain tumor may predict whether it will affect your vision or not. Prompt treatment may help restore or stop vision loss from progressing.

A tumor is a lump of tissue that may be malignant or benign (cancerous or noncancerous). It can form anywhere in the body, including in the brain.

Tumors growing in and around the brain can produce several symptoms, including vision problems and even vision loss.

Here’s more about what visual symptoms you may experience with brain tumors and what symptoms may be a reason for you to see your doctor.

Yes. Some brain tumors cause vision issues and even vision loss. Changes to the eyesight may happen slowly and may go unnoticed for some time.

Vision symptoms related to brain tumors may include:

All brain tumors don’t cause these issues. Tumors that affect the frontal lobe or temporal lobe, may produce symptoms that don’t involve vision. These symptoms include loss of smell, weakness in one side of the body, or seizures.

Any tumor that presses on the optic nerve or optic chiasm can temporarily or permanently cause blindness. Symptoms may begin slowly with blurry or double vision and progress to total vision loss over time as the tumor grows.

Any type of brain tumor has the potential to cause vision problems if it puts pressure on the optic nerve or otherwise affects the eyes or vision processing. What part of the brain the tumor affects, the optic nerve or optic chiasm determines its impact on your vision.

There are more than 150 different types of tumors that affect the brain and spinal cord. These tumors affect both children and adults. Both malignant and benign tumors may cause vision issues.

Tumors that may cause vision issues include:

The location of the tumor may affect your vision. Tumors in the:

  • occipital lobe may result in hemianopia, which is loss of vision on one side of the visual field
  • cerebellum may result in nystagmus, which is rapid eye movement from side to side or up and down
  • brain stem may result in double vision, which is when you may see two images of one object

Without treatment, your vision may get progressively worse and lead to:

  • peripheral vision loss
  • central vision loss
  • color vision loss
  • blindness in one eye

The possibility of regaining vision is different for different people. It depends on your tumor’s location, size, and various other factors specific to your health.

Some people may only experience temporary vision loss from compression of the optic nerve. After surgery or other treatment, these people may experience full or partial vision restoration of their eyesight.

For others, vision loss may be permanent even if the surgeon removes the tumor. That’s because — once damaged — the optic nerve cannot regenerate. But removing the tumor may prevent the vision loss from getting worse.

Doctors who may support you during treatment and recovery include:

Experts are yet to figure out the standard time for the vision to return after a brain tumor. Treatment options include:

Whether alone or in combination, these treatments may or may not restore vision but may stop it from worsening.

Some people do not get their vision back after having a brain tumor. The longer you experience vision loss ( due to compression on the optic nerve), the less likely it is to regain your vision.

In some cases, vision may return by reducing the pressure on the optic nerve and optic chiasm. The key is early detection and getting treatment as soon as possible to prevent vision loss.

Several warning signs indicate that you may have a brain tumor. Speak with your doctor if you experience any of the following, especially in combination:

Brain tumors can cause vision problems and even blindness. If you experience symptoms that concern you, speak with your doctor. Some vision issues may not be related to tumors but may still need treatment.

Vision issues related to tumors may or may not fully respond to treatments like surgery or radiation, but prompt treatment may prevent vision loss from progressing.