When Andrew Leland was a teenager he learned he had a rare disease that would cause him to become blind by the time he reached middle age. He recently decided to prepare by attending a special school for blind people. 

You can read Andrew’s essay for the New Yorker, “How to Be Blind” here: https://www.newyorker.com/culture/the-weekend-essay/how-to-be-blind 

And you can find Andrew’s new book, The Country of the Blind here: https://www.penguinrandomhouse.com/books/635964/the-country-of-the-blind-by-andrew-leland/