Tunnel vision is a vision defect where objects cannot be seen unless they are near the center of the visual field, resulting in a constricted circular tunnel-like field of vision
. It is caused by the loss of peripheral vision, which can be temporary or permanent, and is primarily caused by issues with the rods and cones, two types of light-sensing cells in the retina
. Some common symptoms of tunnel vision include:
- Difficulty driving, reading, and walking in crowded spaces
- Bumping into objects or people
- Trouble navigating crowds
- Poor night vision
Tunnel vision can be caused by various factors, such as glaucoma, retinitis pigmentosa, blood loss, and alcohol consumption
. In some cases, it can be related to eyeglass use, where the corrective lens only provides a focused view of the object beyond the lenses, and the eyeglass frame may block the view of the world with a thin opaque boundary separating the lens
. Regular eye exams are essential for detecting tunnel vision early, as it can help in effective treatment
. Treatment options may include addressing the underlying cause, such as removing blood that has leaked from the eye's blood vessels or performing glaucoma surgery to drain fluid out of the eye and reduce pressure
. If you notice any changes in your vision or experience symptoms of tunnel vision, it is crucial to visit an eye care specialist or healthcare provider for proper diagnosis and treatment
