metamorphopsia


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metamorphopsia

 [met″ah-mor-fop´se-ah]
defective vision, with distortion of the shape of objects seen.

met·a·mor·phop·si·a

(met'ă-mōr-fop'sē-ă),
Distortion of visual images.
[meta- + G. morphē, shape, + opsis, vision]

metamorphopsia

[met′əmôrfop′sē·ə]
Etymology: Gk, meta + morphe, form, opsis, sight
a defect in vision in which objects are seen as distorted in shape, which results from disease of the retina or imperfection of the media.

met·a·mor·phop·si·a

(met'ă-mōr-fop'sē-ă)
Distortion of visual images.
[meta- + G. morphē, shape, + opsis, vision]

metamorphopsia

Distortion or breakup of the perceived visual image either as a result of disruption of the normal relationship of the cones in the central part of the RETINA or as a result of brain damage or malfunction or the effects of HALLUCINOGENIC drugs.

metamorphopsia

An anomaly of visual perception in which objects appear distorted in shape or of different size or in a different location than the actual object. It may be due to a displacement of the visual receptors as a result of inflammation, tumour or retinal detachment, it can be of central origin (e.g. migraine, drug intoxication, neurosis or brain injury), or it can be induced by recently prescribed myopic correction (e.g. micropsia) or presbyopic correction (e.g. macropsia), etc. Metamorphopsia can be detected with an Amsler chart. See spasm of accommodation; dysmegalopsia; macular hole; pelopsia; teleopsia.
References in periodicals archive ?
Two-thirds of the participants did not report any symptoms of metamorphopsia or scotomas in their central visual fields.
Therefore, these authors would have had difficulty concluding that retinal hemorrhages caused blurring of vision and metamorphopsia in patients with dengue maculopathy.
The NICE final guidance again highlighted metamorphopsia as a 'severe and distressing' symptom, with its impact on the patient being comparable to a loss of two lines in visual acuity.
31) Symptoms often include metamorphopsia, blurred vision and relative positive scotoma.
In its Final Appraisal Determination, NICE for the first time also characterized metamorphopsia as a 'severe and distressing' symptom with its impact on the patient being comparable to a loss of 2 lines in visual acuity.
a) If it is present with metamorphopsia, it indicates wet AMD b) They are not a hereditary phenomenon c) They are generally calcified d) None of the above 2.
Of the causes of metamorphopsia discussed above, it is CNV that demands the most urgent management.
Patients will then experience metamorphopsia and associated blurring of vision.
T, blue/yellow and motion perimetry, contrast sensitivity, macular pigment density, glare test, pupilometry, visual aptitudes, metamorphopsia and attention visual field.
Therefore, patients with soft drusen and/or RPE changes need to be warned about the possibility of future visual loss, and to report immediately if they notice any sudden change in their vision, in particular metamorphopsia.
Central serous retinopathy (CSR) is characterised by symptoms of reduced vision and metamorphopsia.