Other causes of ectropion are scarring, burns, trauma (called cicatricial ectropion), spasm of the orbicularis muscle, which may affect either the upper or lower eyelid, or paralysis of the orbicularis muscle in which only the lower eyelid is affected.
It is possible that there is nothing wrong with your water heater. There is a pressure relief valve on top that may be releasing water because your primary water pressure reduction valve for the house is worn out. The fact that the leak is intermittent suggests this.
How to Fix a Leaking Water Heater. A leaking water heater is more than just a minor irritation that can be ignored for some time. Since a water heater is frequently placed in the basement or a closet that is not commonly used, even a small leak can cause extensive damage to the floor, sub-floor, and walls of the home before it is spotted.