Thanks to Ora Moose for this story.

Carl Zimmer
May 30, 2018

"Some families are ambushed by blindness. The children in these families are born with eyes that seem perfectly normal. But when they become young adults, some of them suddenly get blurry vision. In a matter of weeks, their central field of view may go completely dark. The first doctor to notice this disease was Theodor Leber. In 1871, he described four families it plagued. The condition came to be known as Leber hereditary optic neuropathy. Yet even though “hereditary” was part of its name, the disease flouted heredity’s ordinary rules."

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