What is the most common visual field defect experienced in glaucoma?

The most common visual field defect experienced in glaucoma is the loss of peripheral vision. In glaucoma, damage to the optic nerve often leads to a specific pattern of vision loss that typically starts in the peripheral visual field and progresses inward. This gradual loss can be missed initially by patients, as central vision often remains intact for a long time, allowing individuals to preserve their ability to read and see directly in front of them while becoming increasingly unaware of objects to the side.

The loss of peripheral vision can particularly affect tasks like driving and navigating crowded spaces, as individuals may not be able to detect movements or objects in their periphery. Recognizing and addressing this specific visual field defect is critical in the management of glaucoma, as early detection and treatment can help preserve remaining vision.