Photosensitivity

Light sensitivity, photophobia or hypersensitivity to light is a medical symptom that causes higher than usual intolerance of bright light, and usually the glare that accompanies it. When someone with photophobia is exposed to bright light, such as sunlight or modern florescent lighting, he or she usually experiences discomfort and or pain. 
Various conditions and diseases like glaucoma, dyslexia, albinism, and concussions can cause light sensitivity. 
One common remedy is to wear glasses with tinted lenses while in sun or florescent lighting. The glasses tints can be anything from barely noticeable tints to full on sunglasses