scotoma

Also known as Blind spot area scotoma NOS (finding), Enlarged angioscotoma, Enlarged blind spot, Enlarged paracaecal scotoma, Generalized visual field contraction or constriction, Scotoma of blind spot area, Sector or arcuate visual field defects, Blind spot area scotoma

A scotoma is an area of partial alteration in the field of vision consisting of a partially diminished or entirely degenerated visual acuity that is surrounded by a field of normal – or relatively well-preserved – vision.

Key facts

Medical condition (new).caption: Animation of a scintillating scotoma that is almost spiral-shaped, with distortion of shapes but otherwise melting into the background similarly to the physiological blind spot, as may be caused by cortical spreading depression
Medical condition (new).image_size: 350px
Medical condition (new).field: Ophthalmology
Medical condition (new).name: Scotoma
Medical condition (new).synonyms: Scotomas, scotomata
Medical condition (new).image: Scintillating scotoma.gif

via Wikipedia infobox

Research

5,796 papers

Motion-Induced Scotoma.Perception · 2019
[Relative scotoma rethought-Comparison between rapid campimetry and standard automated perimetry].Die Ophthalmologie · 2026
Scotoma Simulation in Healthy Subjects.Optometry and vision science : official publication of the American Academy of Optometry · 2018
Preferred retinal loci and macular scotoma characteristics in patients with age-related macular degeneration.Canadian journal of ophthalmology. Journal canadien d'ophtalmologie · 2005
Neuroretinitis: a review.Current opinion in ophthalmology · 2018

via PubMed

Wikidata facts

Image: Scintillating scotoma.gif

Show 4 more facts

Commons category: Scotoma
exact match: identifiers.org/doid/DOID:9335
ICD-9-CM: 368.45
NCI Thesaurus ID: C118737

Sources (5)

via Wikidata · CC0

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Article

8 sections

Contents

Signs and symptoms
Causes
Terminology
See also
Detection
Types
References
External links

Every normal mammalian eye has a scotoma in its field of vision, usually termed its blind spot. This is a location with no photoreceptor cells, where the retinal ganglion cell axons that compose the optic nerve exit the retina. This location is called the optic disc. There is no direct conscious awareness of visual scotomas. They are simply regions of reduced information within the visual field. Rather than recognizing an incomplete image, patients with scotomas report that things "disappear" on them.