What are the symptoms of dry eye syndrome?

Dry eye syndrome is characterized by symptoms that arise from insufficient lubrication or moisture on the surface of the eye. The correct choice highlights common symptoms associated with this condition. Discomfort can manifest as a sensation of dryness, while the gritty feeling reflects the irritation that occurs when tears are inadequate to maintain the eye's surface health. Additionally, fluctuating vision is a notable symptom because the variability in moisture levels can lead to changing clarity of sight throughout the day.

Other options, while they may include eye-related symptoms, do not specifically relate to dry eye syndrome. For example, itching and tearing can occur in various ocular conditions, not just dry eye. Blurred vision alone is too vague and does not encompass the characteristic discomfort and sensations associated with dry eyes. Night blindness and halos around lights are typically related to different eye issues, such as cataracts or certain retinal problems, rather than being symptoms of dry eye syndrome.