Tunnel Vision
Updated January 01, 2014.
Written or reviewed by a board-certified physician. See About.com's Medical Review Board.
Definition:
The term "tunnel vision" is used to describe a constricted field of vision in which a person retains their central vision, but has a lack of peripheral vision. Also referred to as a "tubular field" by eye doctors, tunnel vision is much like looking through a small tube. People with tunnel vision often have a difficult time navigating in dim lighting, such as in a dark movie theater.
Although stroke and retinal detachment can cause restricted visual fields, true tunnel vision is most often caused by severe glaucoma and retinitis pigmentosa.
Stress and other psychological problems can also causes a tunnel vision effect. Brain trauma and optic nerve problems such as optic neuritis can also cause a severely constricted visual field.
Also Known As: tubular field
Written or reviewed by a board-certified physician. See About.com's Medical Review Board.
Definition:
The term "tunnel vision" is used to describe a constricted field of vision in which a person retains their central vision, but has a lack of peripheral vision. Also referred to as a "tubular field" by eye doctors, tunnel vision is much like looking through a small tube. People with tunnel vision often have a difficult time navigating in dim lighting, such as in a dark movie theater.
Although stroke and retinal detachment can cause restricted visual fields, true tunnel vision is most often caused by severe glaucoma and retinitis pigmentosa.
Stress and other psychological problems can also causes a tunnel vision effect. Brain trauma and optic nerve problems such as optic neuritis can also cause a severely constricted visual field.
Also Known As: tubular field
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