Eye pain has quite a few causes, including cancer. However, eye pain can also be caused by a cavity, believe it or not.

Nevertheless, if you’re having seemingly unexplainable pain in an eye, you should first see an ophthalmologist to rule out a serious cause.

“Pain from a damaged tooth can ‘radiate,’ causing eye pain, headaches, ear aches, etc.,” says Laurence (Larry) Grayhills, DMD, MS, MAGD, member of the Academy of General Dentistry.

“An infected or abscessed tooth could ‘drain’ into the sinus and establish a sinus infection.  This, too, could be a source of pain behind the eye or headache.”