The visual field is the area a person can see while focusing on a central point without moving their eyes. If you’ve been to an eye doctor, you’ve most likely had a visual field test. This exam is used to check for any blind spots or loss of peripheral vision. 

Visual field testing is crucial for regular eye care, especially for people at high risk of developing eye diseases and other issues. Certain medical conditions, like diabetes or high blood pressure, increase the risk of blood vessel problems in the retina and optic nerve. Early detection of these conditions can lead to better treatment options and improved outcomes for patients. 

Types of visual field testing 

There are several types of visual field tests. The type of visual field test you will need depends on your eye health and vision. 

Confrontation visual field test   

This test is a simple and painless test that helps our eye doctor evaluate your peripheral vision. During the test, you’ll be asked to cover one eye and look straight ahead with the other eye. Our doctor will then move their hand or an object into your peripheral vision in different areas and ask you to let them know when you see it. They’ll then repeat the test with your other eye to evaluate each eye separately. 

Automated static perimetry test  

This type of test uses a computer to create a detailed map of your visual field. During the test, you’ll be asked to sit in front of a machine that displays a series of small dots of light. Our doctor will ask you to look at a central point and to press a button every time you see a light. The machine will then map out your responses and create a visual field map that our optometrist can use to assess your peripheral vision. 

Amsler grid   

The Amsler grid test checks for diseases that impact your central vision, including macular degeneration. During the test, you will look at a grid of straight lines with a small dot in the center. Our eye doctor will ask you to focus on the dot and report any changes you notice in the lines of the grid, such as wavy or distorted lines. They will then use this information to assess the health of your macula and diagnose conditions such as macular degeneration and other vision disorders. 

If you’re concerned about vision loss, call our office today to schedule a comprehensive eye exam in Plymouth.