Question

When you are looking at a bright light how will your pupils react

Answer 1

When you look at a bright light, your pupils will generally constrict, or become smaller. This reaction is known as the "pupillary light reflex." It is a protective response that helps to reduce the amount of light entering the eye, preventing damage to the retina and improving visual acuity in bright conditions. The constriction is mediated by the muscles of the iris and is controlled by the autonomic nervous system. If you then look away from the bright light, your pupils will gradually dilate again to allow more light in, which is known as the "dim light reflex."