Which ocular condition might lead to "tunnel vision"?

Tunnel vision, characterized by a constricted field of vision where peripheral sight is lost while central vision remains, is most commonly associated with glaucoma. This condition occurs when fluid builds up in the eye, increasing intraocular pressure, which can damage the optic nerve. Over time, this damage can reduce the field of vision, resulting in tunnel vision.

In contrast, cataracts lead to blurred vision and changes in the perception of colors but do not primarily affect peripheral vision. Macular degeneration, while it impacts central vision and creates difficulties with tasks like reading or recognizing faces, does not typically cause peripheral vision loss. Presbyopia, a condition associated with aging, affects the ability to focus clearly on close objects, but again does not involve the peripheral field of vision. Thus, glaucoma stands out as the ocular condition that specifically results in tunnel vision due to its direct impact on the optic nerve and overall vision field.