Humita (from Quechua humint'a) is a Native American dish from pre-Hispanic times, and a traditional food in Argentina, Bolivia, Chile, Ecuador and Peru, although their origin is unclear. In Argentina, Chile, Ecuador and Peru they are known as humitas, in Bolivia as humintas, in Brazil as pamonha, and in Venezuela as hallaquitas. It consists of masa harina and corn, slowly steamed or boiled in a pot of water.
A greater intensity of light causes the pupil to constrict (miosis/myosis; thereby allowing less light in), whereas a lower intensity of light causes the pupil to dilate (mydriasis, expansion; thereby allowing more light in). Thus, the pupillary light reflex regulates the intensity of light entering the eye.
Not necessarily. If you are in very bright lighting, your pupils will constrict to limit the amount of light allowed to enter your eye. This protects the retina from damage. Likewise, in very low light levels, your pupils will dilate (enlarge) in order to allow more light into the eye and improve vision. This is a normal process.