Eye issue six week old chick

[MillerChx]

I have a crested rooster chick that keeps his left eye closed. Sometimes he opens it and it looks normal (clear, not discolored,oozing, etc.).
Any idea as to what is wrong with him and how to treat it is greatly appreciated!

Thank you!

 

[Eggcessive]

Can you see any bubbles in the eye, or any feather or foreign body in there? You can rinse the eye with saline or saline eye wash, and apply some Terramycin eye or plain Neosporin ointment into the eye twice a day. How old is he? Is there any nasal drainage or dry goop in the nostril? Any sneezing?

 

[MillerChx]

No. It looks clear and there's no redness or discharge. He is six weeks old. No sneezing and nose looks clear. Very healthy chicken except for the one eye.