Orange Ribbon. Leukemia Inspirational words on a butterfly ribbon design for shirts, apparel and gifts with words of hope, faith, courage, love, resilient, fight, support and awareness Ideal for the Leukemia survivor, warrior and advocates.
Generally, the preferred viewing distance is between 20 and 40 inches (50 and 100 cm) from the eye to the front surface of the computer screen (Figure 1). NOTE: text size may need to be increased for smaller monitors. Provide adequate desk space between the user and the monitor (table depth).
Single-vision distance glasses are used for seeing distances roughly two feet away or more. Single-vision intermediate (computer) glasses are used for seeing distances between one-and-a-half and two feet away, basically how far away a person usually is from a computer screen.