Both authors of this textbook have been influenced by what we have seen or not seen in the world, though

(and sometimes perhaps because) we long have worn glasses and contacts. Because we live in an ocularcentric, or seeing-centered, culture, we think this chapter is important to include in this edition.

Nevertheless, people who are severely seeing impaired or blind would not have the heavy reliance on sight that we underscore in this chapter. How might one’s relationship with environmental media change if one is seeing impaired?