Effects of Chinese Character Font and Size on Visual Performance between Different Age Groups
Abstract The use of computer is getting more and more popular. In order to catch up with the trend, the elderly as well as other age groups people have to use computers more frequently. From literature on vision researches, visual capabilities start deteriorating after 40 years of age. This research intended to investigate how do elderly people do on VDT compare to younger generation. Three types of most frequently used Chinese character font (Thin-ming, Zhong-yuan, and Biao-kai) with three levels of character size (25, 40, and 55 minutes of visual angle) were chosen to test visual performance and preferences The results showed that character font and size both had significant effects on visual performance. Subjects performed best with Thin-ming font and worst with Biao-kai. The bigger the character size, the better the visual performance. Subjective preference was also affected by font and size. Zhong-yuan was the most preferred font and Biao-kai the least. 55 minutes of visual angle resulted in the greatest subjective preference, while 25 minutes the worst. Young subjects performed better than elderly people did
When using computers, there are several factors that influence reading performance. Factors can be categorized into two broad categories: hardware and information presentation. Hardwares set the basics for information presentation. Parameters of information presentation, such as character size, word spacing, line spacing, and word font will in turn influence reading performance.