Optometry

Optometry

Of or pertaining to the health care profession concerned with eyes and related structures, as well as vision, visual systems, and vision information processing in humans.

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Optometry > Optical phenomena

sun dog

Optometry; Optical phenomena

A sun dog (or sundog), mock sun or phantom sun, scientific name parhelion (plural parhelia), is an atmospheric phenomenon that creates bright spots of light in the sky, often on a ...

rainbow

Optometry; Optical phenomena

A rainbow is an optical and meteorological phenomenon that is caused by both reflection and refraction of light in water droplets in Earth's atmosphere, resulting in a ...

Synesthesia

Optometry; Optical phenomena

Synesthesia is a neurological phenomenon in which stimulation of one sensory or cognitive pathway leads to automatic, involuntary experiences in a second sensory or cognitive ...