Dysmetropsia
Encyclopedia
Dysmetropsia is the group of visual illusions involving an alteration in the size or separation of visual objects. The four common dysmetropsias are: macropsia
, micropsia
, pelopsia
and teleopsia
.
Macropsia
Macropsia is a neurological condition affecting human visual perception, in which objects within an affected section of the visual field appear larger than normal, causing the subject to feel smaller. Macropsia, along with its opposite condition, micropsia, can be categorized under dysmetropsia...
, micropsia
Micropsia
Micropsia is a condition affecting human visual perception in which objects are perceived to be smaller than they actually are. Micropsia can be caused by either optical distortion of images in the eye or by a neurological dysfunction. The condition of micropsia can be caused by more factors than...
, pelopsia
Pelopsia
Pelopsia is a vision perception disorder in which objects appear nearer than they actually are....
and teleopsia
Teleopsia
Teleopsia is a vision perception disorder, in which objects appear much further away than they actually are. Teleopsia is a disorder associated with Dysmetropsia....
.