visual field chart

A visual field chart is a tool used to measure a person's peripheral vision, which is how much they can see to the sides while looking straight ahead. During the test, a patient focuses on a central point and indicates when they see lights or objects appear in their side vision. The results are plotted on a chart, showing areas where vision may be impaired. This assessment helps doctors detect eye diseases, neurological conditions, or other health issues that could affect vision, allowing for appropriate diagnosis and treatment.