Physical symptoms:

• eyestrain, squinting
• eye pain
• headache or migraine attach
• intolerance of light, especially fluorescents
• inflammation
• excessive blinking
• watery eyes
• vertigo, dizziness

Additionally:

• nausea
• shortness of breath
• chest tightness
• lightheadedness

Chronic photophobia increses likelihood of anxiety

Photophobia emotional symptoms

• irritability
• mood swings
• aggression
• hopelessness
• depression

Types of light that affect photophobia

• Fluorescent lights
• sunlight
• computer, mobile screens

Resons:

• brightness
• flickering, flashing (high visual contrast)
  • striped patterns can also trigger epilepsi, migraine
• colour, wavelength
  • blue light

25% of photosensitive people report reduced quality of life. It si probably higher.

via:: [[on light and lighting]]