Dry eye is a common condition that occurs when the eyes do not produce enough tears or when the tears evaporate too quickly. This can lead to discomfort, a gritty sensation, and redness. Factors contributing to dry eye include aging, certain medications, and environmental conditions like wind or smoke. Symptoms of dry eye can vary from mild to severe and may include burning, itching, or blurred vision. Treatment options often involve artificial tears, lifestyle changes, or medications to increase tear production. In some cases, procedures to block tear drainage may be recommended to help retain moisture in the eyes.