Which symptom is often reported as a complaint regarding vision issues?

Headaches are frequently reported as a symptom associated with vision issues, particularly in individuals experiencing eye strain, refractive errors, or other visual impairments. When the eyes are unable to focus properly, it can lead to muscle fatigue in the eye, causing discomfort manifesting as headaches. This is especially common when performing tasks that require prolonged focus, such as using a computer or reading.

In contrast, the other symptoms listed do not typically correlate with vision problems. Increased appetite is more related to metabolic changes or psychological factors rather than vision. Claims of having better than normal vision would not be a complaint but rather a positive assertion about one's eyesight. Similarly, becoming more social does not directly relate to visual health and is more associated with other behavioral or emotional factors. Thus, headaches stand out as a direct and common complaint tied to various vision-related issues.