macropsia

[mah-krop´se-ah] an illusion in which objects appear larger than their actual size.

ma·crop·si·a

(mă-krop'sē-ă), Perception of objects as larger than they are. [macro- + G. opsis, vision]

macropsia

A disorder of visual perception (dysmetropsia) in which objects in the visual field appear larger than normal, some forms of which have been fancifully termed the “Alice in Wonderland” syndrome. Retinal macropsia is attributed to compression of receptor spacing, resulting in greater stimulation and a larger perceived image.
Aetiology
Aniseikonia, prescription drugs (e.g., citalopram, zolpidem), illicit drugs (e.g., LSD, psilocybin, marijuana), migraines, epilepsy, hypolycaemia, EBV virus infection, prions.

macropsia

Abnormal perception of the size of objects so that they seem larger than they actually are.

macropsia

Anomaly of visual perception in which objects appear larger than they actually are. It may occur as a result of abnormal accommodation (less than required for the fixation distance) or because of various retinal anomalies in which the visual receptors are crowded together, or because of the recent wear of either base-in prisms or a presbyopic correction, etc. Syn. megalopsia. See dysmegalopsia; micropsia; meta-morphopsia.

单词	macropsia
释义	macropsia macropsia (məˈkrɒpsɪə) n (Pathology) the condition of seeing everything in the field of view as larger than it really is, which can occur in diseases of the retina or in some brain disorders macropsia macropsia [ma′kräp·sē·ə] (medicine) A disturbance of vision in which objects seem larger than they are. Also known as megalopia. macropsia macropsia [mah-krop´se-ah] an illusion in which objects appear larger than their actual size. ma·crop·si·a (mă-krop'sē-ă), Perception of objects as larger than they are. [macro- + G. opsis, vision] macropsia A disorder of visual perception (dysmetropsia) in which objects in the visual field appear larger than normal, some forms of which have been fancifully termed the “Alice in Wonderland” syndrome. Retinal macropsia is attributed to compression of receptor spacing, resulting in greater stimulation and a larger perceived image. Aetiology Aniseikonia, prescription drugs (e.g., citalopram, zolpidem), illicit drugs (e.g., LSD, psilocybin, marijuana), migraines, epilepsy, hypolycaemia, EBV virus infection, prions. macropsia Abnormal perception of the size of objects so that they seem larger than they actually are. macropsia Anomaly of visual perception in which objects appear larger than they actually are. It may occur as a result of abnormal accommodation (less than required for the fixation distance) or because of various retinal anomalies in which the visual receptors are crowded together, or because of the recent wear of either base-in prisms or a presbyopic correction, etc. Syn. megalopsia. See dysmegalopsia; micropsia; meta-morphopsia.
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