Micropsia
Micropsia (pronounced: /maɪˈkrɒpsiə/) is a neurological condition affecting visual perception, in which objects within an affected section of the visual field appear smaller than normal, causing the person to feel larger than they actually are. The term is derived from the Greek words "micros" meaning small and "opsis" meaning sight.
Causes
Micropsia can be caused by Optic Neuritis, Macular Degeneration, Epiretinal Membrane, or the use of certain drugs such as Hallucinogens. It can also be a symptom of Alice in Wonderland Syndrome (AIWS), a rare condition characterized by distortions of visual perception, the body image, and the experience of time.
Symptoms
The primary symptom of Micropsia is the perception of objects being smaller than they are in reality. This can affect one or both eyes and can occur intermittently or be constant. Other symptoms can include Metamorphopsia, where straight lines appear wavy, and Teleopsia, where objects appear further away than they are.
Treatment
Treatment for Micropsia depends on the underlying cause. If it is due to a condition such as Optic Neuritis or Macular Degeneration, treating the underlying condition often resolves the Micropsia. If it is drug-induced, discontinuing the drug usually resolves the symptoms. In cases where Micropsia is a symptom of AIWS, treatment options can include Anticonvulsants, Antidepressants, and Beta Blockers.
Related Terms
- Macropsia: A condition where objects appear larger than they are.
- Pelopsia: A condition where objects appear closer than they are.
- Porropsia: A condition where objects appear further away than they are.
See Also
External links
- Medical encyclopedia article on Micropsia
- Wikipedia's article - Micropsia
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