Salt and pepper can refer to many things other than the condiments — such as films, an album, a musical group, noise, etc. (Here is a relatively comprehensive list of things salt n’ pepper.) Some of those things are medical.
The eye is not an uncommon target for those who think about food while they work. Here is salt and pepper in the eye.
BONUS: (thanks to investigator Kurt Verkest) A photo of cherries in the eye.