What is a common visual symptom associated with unilateral visual neglect?

Unilateral visual neglect, often observed in patients who have experienced a stroke, typically manifests as a failure to report or respond to stimuli located on one side of their visual field, usually the side opposite to the hemisphere that is affected. This phenomenon occurs due to the brain's inability to process or pay attention to visual information from the neglected side, resulting in the patient being unaware of objects, people, or events occurring on that side.

In contrast, the other options do not accurately describe unilateral visual neglect. Difficulty seeing color may occur in various visual impairments but is not specifically characteristic of neglect. Absent peripheral vision generally refers to a loss of sight in the outer fields of vision, often resulting from damage to the visual pathways, rather than an attentional issue. Constantly squinting is related to visual acuity problems or eye strain and is not indicative of neglect. The defining symptom of unilateral visual neglect is indeed the failure to report stimuli, making this the correct and most relevant choice.