During the 1980s, in California, a large number of Cambodian women went to their...

During the 1980s, in California, a large number of Cambodian women went to their doctors with the same complaint: they could not see. The women were all war refugees. Before fleeing their homeland, they had witnessed the atrocities for which the Khmer Rouge, which had been in power from 1975 to 1979, was well known. Many of the women had been raped or tortured or otherwise brutalized. Most had seen family members murdered in front of them. One woman, who never again saw her husband and three children after soldiers came and took them away, said that she had lost her sight after having cried every day for four years. She was not the only one who appeared to have cried herself blind. Others suffered from blurred or partial vision, their eyes troubled by shadows and pains.
The doctors examined the women - about a hundred and fifty in all - found that their eyes were normal. Further tests showed that their brains were normal as well. If the women were telling the truth - and there were some who doubted this, who thought the women might be malingering because they wanted attention or were hoping to collect disability - the only explanation was psychosomatic blindness.
In other words, the women's minds, forced to take in so much horror and unable to take more, had managed to turn out the lights."