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.
Things that can make pupils smaller include a well lighted room and medications such as narcotic pain killers. Keep in mind that the pupillary size is adjusted by the brain to allow a certain amount of light into the eye for the retina to see. If your pupils are small, but you can see fine, your brain is essentially saying that your pupils do not need to be any bigger to allow an adequate amount of light into the eye.