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’. When she visited the doctor no infection was found so she was sent home with eye drops.
Some experts have suggested that Miss Oliva has a condition called haemolacria. The rare condition causes sufferers to cry tears of blood.
Haemolacria can indicate a more serious illness, such as a tumour and can be caused by high levels of hormones in women.