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.
Sometimes the hot water heater will trick homeowners into thinking there is a leak when there is in fact nothing wrong. It is natural for condensation to occur on a hot water heater. When cold water first enters the inside of the tank, it can lead to condensation when the outside air is hot.