Motion blindness (also called Akinetopsia) is a medical condition (although not a medical condition that is not currently recognized by the World Health Organization) in which a person cannot see objects that are moving even though they can see the objects that do not move. The condition seems to be very rare, and related to the nerves. It may also be psychological. There is currently no treatment for this condition. A lot of information about this condition comes from different case studies done between 1913 and 2003. Most of what is known is from a single patient, called LM. LM was a 43 year old woman who was treated in a hospital in 1978, after she had suffered a stroke.