What senses we do not have, we make up for by using our other senses, which become stronger due to the lack of one of the senses. These people sharpen their other senses to cope with the loss of a particular sense. They can help their senses by wearing eye glasses if their sense of sight is failing or they can learn sign language if their sense of hearing is lost. People who are completely blind can use the Braille system to read. They use their sense of touch to feel the bumps on the paper that represent letters and words.
People have the same body parts that produce our senses.
This makes people the same, no matter what ethnicity, race, or gender they are or what characteristics define them. The eyes give us our sense of sight. Light enters the eye and forms images. Then the eye changes these images into signals that tell the brain what you are seeing. We use the sense of sight to tell the differences between size, shape, and color, among others.