edit data. Becky Chambers is the author of the award-nominated science fiction novel The Long Way to a Small, Angry Planet, as well as the upcoming stand-alone sequel, A Closed & Common Orbit. She also writes nonfiction essays and short stories, which can be found in various places around the internet.
Some rare types of migraines can cause temporary paralysis or blindness, and can even mimic some very serious medical conditions. More than 13 percent of Americans are affected by migraines, severe pain in the head that is sometimes accompanied by vision problems, nausea, vomiting, and dizziness.
PD (pupillary distance) can be an important part of your lens prescription, and notably affect your general well-being. If you have high myopia, and in particular high myopia and high astigmatism, an incorrect PD value can cause blurry vision, double vision images, headaches, nausea, and fatigue.