Yaritza Oliva developed the condition earlier this month, and now bleeds from her eyes several times a day.

Miss Oliva, who lives in Purranque, Chile, said that the pain is ‘indescribable’, The Sun reported.

When she visited the doctor no infection was found so she was sent home with eye drops.

But, her parents, who cannot afford to send her to an appropriate medical expert, have asked friends and neighbours to help them raise funds for her.

Some experts have suggested that Miss Oliva has a condition called haemolacria.

The rare condition causes sufferers to cry tears of blood.