For many years in México and the world there is the tendency to improve the health of people, with emphasis on prevention and early detection, one of the most common examples is detection of breast cancer, if it is detected early it is curable. This paper proposes a system for digital image capturing, principally for the detection of the sclera (the white part of the eye), because not are databases available for sclera analysis, only for iris or pupil. The device must be of moderate cost and small size to perform a self-examination in a habitual place for people, can be their home, and were used recycled and low cost materials. It should be noted that the main purpose it is to capture images as uniform as possible, and thereby in the subsequent works, the detection of the sclera is less complicated
