Ancient ayurvedic healers identified dozens of causes that can bring eyes to grief. Among them were:

• Misuse of the eyes-straining too much, concentrating too hard on minute objects, or looking too far in the distance constantly.
• Injury.
• Excessive anger, jealousy, or negative feelings. (Echoing the thought that the eyes mirror the soul).
• Suppression of natural urges like hunger, thirst, sleep, and the need to cry.
• Suppression or neglect of sleep. Also, changes in one's regular sleep/wake routine.Therefore, ayurveda has a different way of looking at eye problems. It sees them as the result of disturbed dosha-balance.

More: Mapi.com