Dictionary of Hallucinations. J.D. Blom. 2010.
stationary scotoma — A term used to denote a scotoma (i.e. an area of loss or impairment of vision) that does not move across the field of vision. The term is used in opposition to the term * moving scotoma. References Sacks, O. (1992). Migraine. Revised and … Dictionary of Hallucinations
fortification spectrum — Also known as fortification figure, fortification of Vauban, geometrical spectrum, herringbone, flittering scotoma, Norman arch, scintillating scotoma, telehopsia, and teichopsia. The introduction of the term fortification spectrum is commonly … Dictionary of Hallucinations
Floater — For other uses, see Floater (disambiguation). Floater Classification and external resources Simulated image of floaters against a blue sky ICD 10 H … Wikipedia
Nystagmus — Horizontal optokinetic nystagmus, a normal (physiological) form of nystagmus ICD 10 H55, H81.4 … Wikipedia
Keratoconus — Classification and external resources The conical cornea that is characteristic of keratoconus ICD 10 H … Wikipedia
Aura (symptom) — For other uses, see Aura (disambiguation). Migraine with aura (classical migraine) Classification and external resources ICD 10 G43.1 ICD 9 … Wikipedia
Akinetopsia — Akinetopsia, also known as cerebral akinetopsia or motion blindness, is an extremely rare neuropsychological disorder in which a patient cannot perceive motion in their visual field, despite being able to see stationary objects without issue. For … Wikipedia
Visual cortex — Brain: Visual cortex View of the brain from behind. Red = Brodmann area 17 (primary visual cortex); orange = area 18; yellow = area 19 … Wikipedia
Laser safety — A typical laser warning symbol. Laser safety is safe design, use and implementation of lasers to minimize the risk of laser accidents, especially those involving eye injuries. Since even relatively small amounts of laser light can lead to… … Wikipedia
Cortical blindness — Classification and external resources ICD 10 H47.6 ICD 9 377.75 … Wikipedia
