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Hamsters can't see clearly at night, and their vision is very limited in the dark. Here is a detailed analysis of a hamster's night vision:
Limited Vision
Hamsters are nocturnal animals, but their vision doesn't have an advantage in a completely dark environment. They can only see clearly for a short distance in front of their faces. Even in low light conditions, their visual ability is very limited.
Relying on Other Senses
When hamsters are active at night, they mainly rely on their sense of smell, hearing, and touch to perceive their surroundings. Their whiskers have a mechanosensory function and can sense tiny touches, helping them to navigate in the dark.
Visual Characteristics
The retina of a hamster is mainly composed of rod cells, which makes them relatively sensitive in low light (such as at dawn and dusk), but they can hardly see in strong light or complete darkness. In addition, hamsters are highly myopic and can only see clearly at a distance of a few centimeters in front of them.
Behavioral Manifestations
Although hamsters have poor vision in the dark, they can still move around freely at night, which benefits from the assistance of other senses. For example, they will run on the running wheel, forage for food, or play, and these behaviors don't rely on vision.
Conclusion: Hamsters can't rely on their vision to see their surroundings clearly at night, but through the coordinated action of other senses, they can still move around freely at night.