What is the purpose of a visual field test?

The purpose of a visual field test is to measure the full horizontal and vertical extent of vision. This test is essential in identifying any areas of vision loss or abnormalities in a person's visual field. It can detect a variety of conditions, such as glaucoma, retinal diseases, and brain disorders that impact vision. By determining how much of the surrounding environment can be seen while focusing on a central point, healthcare providers can assess overall eye health and detect issues that may not be evident through standard vision tests.

Measuring the entire visual field is crucial for understanding a patient’s functional vision and can guide further medical or surgical interventions if necessary. The outcomes from this test provide valuable information for diagnosing and monitoring ocular and neurologic conditions.