"My eye hurts" or "I have a sore eye"

You could say any of the following statements if something hurts a little bit. 'I've hurt my eye.' 'I just got something in my eye and it hurts a little bit.' 'There's something in my eye and it's stinging a bit.' Usually we tend to emphasise the 'little' when describe a small thing that hurts. 'It stings just a bit' But 'hurt' is a useful word for moderate pain. I hope that helps