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.
When to Replace a Water Heater. If your water heater is leaking or not heating up, you may be able to repair it rather than replace it. Regular maintenance will extend the life of your water heater. Some repairs, such as replacing a pressure-relief valve or heating element are pretty simple.