Yes, it is possible that a low level of ferritin can lead to dry eyes. Especially the females who are in their periods are more likely to present this kind of symptom. To prevent from dry eyes due to low ferritin, you certainly had better to go on a regular diet and add more and appropriate supplements of those foods that are abundant in ferritin, such as eggs, exidia auricula judae, animal liver, vegetables and fruits that are of black color, milk, and dairy products and so on. There are also other reasons for dry eyes, such as overuse of eyes without good and adequate rest or sleep, staying in too dry circumstances with air-conditioning always on or on windy days. If so, it is better to use some eye drops to moisten your eyes regularly, and pay attention to allow your eyes to have enough rest, as well as doing some eye exercises, do not stay before the computer for too long a time.