Entoptic phenomena (from Ancient Greek ἐντός (entós) 'within' and ὀπτικός (optikós) 'visual') are visual effects whose source is within the human eye itself.

Entoptic phenomena refer to visual sensations such as flashes of light or shapes that occur due to stimulation of the retina or other parts of the visual system, without the presence of an external light …

May 2, 2023 · What Is The Blue Field Entoptic Phenomenon? The moving dots you see when staring at the sky are created by your own white blood cells flowing through your eyes. Blood flows to your …

Mar 15, 2017 · Blue arc entoptic phenomena. These were first observed by Dr. Purkinje after viewing fire embers in the dark, consist of transient and varying shades of blue arches.

Entoptic phenomenon refers to simple visual experiences that originate from peripheral ocular structures, such as floaters. These experiences may occur in normal individuals, but when they …

Feb 19, 2025 · This intriguing experience is known as an entoptic phenomenon. These visual effects arise from the eye's own structures rather than external stimuli, offering a unique glimpse into the …

Entoptic phenomena are visual perceptions whose origins lie within the structures of the eye itself, such as the retina, vitreous humor, or lens, in contrast to those produced by external light stimuli.

Entoptic phenomena represent a specialized class of visual perception where the stimuli that give rise to the visual experience originate entirely within the observer’s own eye, rather than from external light …

Most people are able to see this phenomenon in the sky, although it is relatively weak in most instances; many will not notice it until asked to pay attention. The dots are highly conspicuous against any …

Because entoptic images are caused by phenomena within the observer's own eye, they share one feature with optical illusions and hallucinations: the observer cannot share a direct and specific view …