Which visual symptom is typically assessed when evaluating a patient's eye movements?

Assessing the quality of eye movements is crucial when evaluating a patient's visual function, particularly following a stroke or any neurological condition. Quality of eye movements encompasses several important factors, such as range of motion, coordination, smooth pursuit, and the ability to maintain fixation on a target. Evaluating these aspects helps identify any impairments in ocular motor control, which can significantly affect a patient's ability to engage with their environment effectively.

While the other options address various visual functions, they do not directly relate to the assessment of eye movements. For example, vowel sound perception pertains to auditory processing rather than vision. The ability to recognize color focuses on color discrimination, and depth perception involves the judgment of distances, neither of which specifically assesses how the eyes move or function together. Thus, quality of eye movements is the most relevant factor when evaluating visual symptoms related to eye function in a clinical setting.