One interesting theory that has come about is that eye color can shape your ability to have a paranormal experience.
It has been reported that most people who have claimed to have had a paranormal experience have had a lighter set of eyes than those who have not claimed to have had an experience.
People with blue, green, and grey colored eyes have made up a 75% of the data when surveyed via Social Networking sites in a 2009 poll. (44 people surveyed.) 33 people with lighter colored eyes had claimed to have had a paranormal experience.
This may further show why claims of paranormal activity (sightings of apparitions) have been predominantly caucasian.
Further studies and surveys will be conducted to further research.