In a Negro ward of Atlanta's Grady Memorial Hospital, a grizzled man sat up in bed, waiting to cry. If only he could weep, he might see again. David Dougherty, 62, had lost his sight almost completely as the aftermath of a rare disease,* which destroys the lacrimal glands producing the watery fluid that lubricates the eyeballs. For two days Dougherty sat in bed with increasing impatience. The doctor had told him he could expect to see again soon after the operation. Still no tears came. Then one noon Dougherty heard a lunch cart rattling down the corridor. As it stopped...
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