snow-blindness

US /ˈsnoʊˌblaɪndnəs/
UK /ˈsnoʊˌblaɪndnəs/
"snow-blindness" picture
1.

a temporary painful condition of the eyes caused by exposure to strong sunlight reflected from snow or ice, resulting in blurred vision and sensitivity to light

:
Hikers in the Arctic must wear protective eyewear to prevent snow-blindness.
After spending hours on the glacier without sunglasses, he developed severe snow-blindness.