I, eye, aye, aye-aye

I  (always a capital letter)  refers to ourselves when we are the subject ( the one doing something )--
I am going to the store.
I like the other chips better.
If you are going to argue, I am going to leave.

Eye or eye ( rhymes with I ) is one of the 2 things you see with, on your face--
Keep an eye out for the stop sign.
The plural ( more than one ) form of "eye" is "eyes" ( pronounced "ize" )--
He has blue eyes.

Now that you know that, you can say--
"I have something in my eye".

Note--"aye"--( rhymes with eye )--is an affirmative response in a voice vote--
Let each representative answer aye or nay.
The ayes have it.

Note # 2--Aye or aye-aye is still an affirmative response to a nautical (on board a ship) command--
Aye-aye, captain.