Related to sight:
* eyeball
* eyeglasses
* eyelash
* eyeliner
* eyeshadow
* eyesight
* eyestrain
* eyetooth
Other:
* eyewitness
* eye-catching
* eye-opener
* eye-popping
* eye-rolling (as in a gesture of annoyance)
Let me know if you'd like more examples or want to explore compound words related to a specific topic!