piece of writing, written material, writing - the work of a writer; anything expressed in letters of the alphabet (especially when considered from the point of view of style and effect); the writing in her novels is excellent; that editorial was a fine piece of writing.
The Senses. Researchers have studied vision more thoroughly than the other senses. Because people need sight to perform most daily activities, the sense of sight has evolved to be highly sophisticated. Vision, however, would not exist without the presence of light. Light is electromagnetic radiation that travels in the form of waves. Light is emitted from the sun, stars, fire, and lightbulbs. Most other objects just reflect light. People experience light as having three features: color, brightness, and saturation.
Blindness and vision loss. Blindness is a lack of vision. It may also refer to a loss of vision that cannot be corrected with glasses or contact lenses. 1  Partial blindness means you have very limited vision.  Complete blindness means you cannot see anything and do not see light. (Most people who use the term blindness mean complete blindness.)