Does your pupil reflect to light in dark?

Yes, the pupil can still react to light in dark conditions, although the response may be less pronounced. In low light, the pupil dilates to allow more light to enter the eye, enhancing vision. However, if a bright light is suddenly introduced, the pupil will constrict to protect the retina from excessive light exposure, even in dark environments. This reflex is known as the pupillary light reflex.