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.
One of the common calls that our plumbers get is an electric water heater that has turned off due to a circuit breaker tripping. There can be several reasons that water heaters will cause a breaker to trip. The most common is due to an electrical short either inside the water heater core wiring or inside one of the heating elements.