Why does your vision change at night?

Vision changes at night primarily due to reduced light levels, which affect how our eyes function. In low light, the rod cells in the retina become more active than the cone cells, leading to decreased color perception and clarity. Additionally, the pupil dilates to let in more light, but this can also reduce depth of field and sharpness. As a result, objects may appear blurrier and colors less vibrant in dim conditions.