PMO... or ...Face processing depends on a complex network of brain regions, and dysfunction within this network can produce a wide variety of face processing impairments. When faces or parts of faces are perceived as distorted, the condition is known as prosopometamorphopsia (PMO).
Around 75 cases reports on people with PMO have been published. There isn’t much understanding about why people experience different types of PMO. Full-face PMO and hemi-prosopometamorphopsia PMO are two most prominent subtypes of PMO.In full face PMO, features on both sides of the face are distorted. For hemi-PMO, features on one side of the face are distorted while features on the other side of the face look normal.
Source: Understanding PMO
PMO... or ...