Field of vision. What does it mean?

Peripheral vision. When someone refers to "field of vision" they are usually referring to your visual field, or the entire scope of what you see in your vision, most notably your peripheral vision. This phrase is also often used to refer to a visual field test which tests your extent to see in your peripheral vision. This is a test routinely used in the evaluation and treatment of glaucoma.
How far you see. The field of vision is the entire area, from left to right, up to down, and in a roughly circular area, that a person can see when looking straight ahead. Certain diseases, such as glaucoma, can rob us of our peripheral field of vision. Others, such as macular degeneration, can cause us to lose our central vision while retaining our peripheral vision.

Related Questions

I have end stage open angle glaucoma with 130 degree field of vision. What does this mean. Doctor vague?

Peripheral vision. Visual field testing is used to measure peripheral vision in diseases that affect the optic nerve like glaucoma. The number of degrees usually refers to span of vision in the horizontal plane with both eyes together, used for legal definition or drivers license. 130 degrees is the angle between the left and right edge of your pripheral vision. Normal is about 180. Minimum to drive is about 120. Read more...
Visual field driving. Severe (end stage) glaucoma causes peripheral vision loss (tunnel vision) . Open angle is most common. Florida requires that you have at least 130 degrees of uninterrupted horizontal visual field in order to drive (along with acuity and other requirements). This is because severe peripheral visual field loss would mean that you might not see a car or person entering the road from the side. Read more...