Heliophobia (disambiguation)

Heliophobia refers to light sensitivity:

In psychology, heliophobia is the morbid fear of sunlight
In medicine it can refer to:
- Hemeralopia, day blindness, inability to see clearly in bright light
- Photophobia, an excessive sensitivity of the eyes to sunlight. Notable causes include:
  - Keratoconus, results in extreme optic sensitivity to sunlight and bright lights
In biology, heliophobic plants or animals have an aversion to sunlight. Heliophobous plants are commonly known as "shade-tolerant".

See also[edit]

Helium, a chemical element; other elements can be heliophilic, attracted to helium, or heliophobic, repelled by helium
Phototropism, growth towards or away from light, particularly in plants and fungi
Phytophotodermatitis, a potentially serious skin inflammation resulting from contact with a plant-based photosensitizing substance followed by exposure to ultraviolet light
Porphyria cutanea tarda, a disease that causes the skin to be overly sensitive to sunlight to the point of causing blisters

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