Eyes feel cool may be related to physiological factors, external factors, poor living habits and other factors. 1. Physiological factors, due to the distribution of rich sensory nerves in the eyes, and directly exposed to the body surface, it is more sensitive to pain, but it is not sensitive to changes in body temperature, therefore, when the tear secretion is less, the eyes will appear when the eyes are dry cool feeling. 2. External factors, when the eyes after the wind, due to air circulation leads to increased evaporation of tears, and the temperature around the eyes will also cause a decrease in tear secretion, the combined effect of all factors will lead to the eyes feel cool. 3. Poor living habits, if there is a long time to stay up late, do not pay attention to rest, excessive use of the eyes and other bad habits, will affect the blood flow around the eyes, appear cool feeling. It is recommended to pay attention to rest, reasonable use of the eyes, and timely medical attention when in discomfort.