Whether you are buying or selling a home you may need to enlist the services of an inspector and/or an appraiser to help assess the value of your home and to see if your home is in need of any work. For the most part, inspections and appraisals are done once and the price is dictated by the market.
It appears black because most of the light entering the pupil is absorbed by the tissues inside the eye. In optical terms, the anatomical pupil is the eye's aperture and the iris is the aperture stop.
The pupils look like round, black dots in the center of the eyes, but they are actually openings that allow light to enter the eyes. The size of the opening is controlled by the iris, the colored portion of the eye surrounding the pupil.