According to this Nasa article, some people can't read under the moonlight. Tonight being a nearly clear night here at the WiredPrairie, and a full moon, my wife and I both decided to try and see whether we could read under the moonlight. Either we don't understand the test it proposes in the article, or we both possess the ability as we could both easily read in the moonlight at a reasonable distance.

3. Moonlight won't let you read. Open a book beneath the full moon. At first glance, the page seems bright enough. Yet when you try to make out the words, you can't. Moreover, if you stare too long at a word it might fade away. Moonlight not only blurs your vision but also makes a little blind spot. (Another note: As with all things human, there are exceptions. Some people have extra-sensitive cones or an extra helping of rods that do allow them to read in the brightest moonlight.)

Anyone ever try it? What happened?