Dogs do get snow blindness (also known as photokeratitis), but it is very rare due to them having more pigment in their irises than humans. However, there have been documented cases where dogs have suffered with the UV glare from the sun and snow, leading to eye problems.

Do dogs need goggles in snow?

Dogs that live a comfortable life indoors definitely benefit from protective eyewear such as Doggles. They aren't accustomed to bright sunlight and you'll find them doing a lot of squinting when outdoors. This is particularly true of the sun reflected off of the snow or sand.

Is snow bad for dogs eyes?

Is vision affected by the cold, snow, wind or rain in the mountains? Cold does not affect vision, but wind can cause problems such as dry eye syndrome in dogs who have genetics for bulging eyes or broad, short skulls (like bulldogs and pugs). Eye allergies tend to worsen with the wind and sun.