please give atleast exact explanations and reliable details, tnx

ya this is must be done to make ur eyes get relaxed.

If you mean splashing water on the outside of the eyelids, fine, but do not fool with the eyeball, eye cups etc. You might try over the counter eye drops to sooth the eyes, but the Lacrimal ducts wash the eyes constantly. Every time you blink, and you might try taking a break, every hour when watching tv, say leaving living room when commercials are on. Try looking into the distance.