There are cases like this that are hoaxes but it’s hard to say from the media stories.
A 12-year-old Yemeni girl has baffled doctors as her eyes oozed out stones instead of tears, triggering panic in her rural area that it could be either magic or epidemic.
Doctors said they still could not give an explanation for such a phenomenon since the girl, Saadiya Saleh, is not suffering from any know disease.
A YouTube film aired by Yemen’s Azal satellite TV channel showed doctors gathered a small box full of stones that dropped out of the girl’s eyes in just a few hours.
Yeah, I don’t know. Hoax? Here is a Previous story we did on another case of a girl who cried stones.
It’s not implausible that she could plant stones in her eyes and reveal them at an appropriate time. It’s worrisome that people are attributing the claim as true without what appears to be a medical exam, and, worse, saying it’s caused by some superstitious cause. I’m not finding any cases described medically (although, perhaps it MIGHT be possible if she can precipiatate minerals (as with kidney stones) in her eyes). If anyone has further info, please post in comments.
Here is the news report from Azal.