The goal of this study is to research the primary characteristics of students with low vision and to show how the electronic magnifier can assist each student in making up for their visual weakness.
By using color reverse feature in electronic magnifying reading device, it is possible to output more background color absolvent darker colors. According to the survey result from the students with low vision attending a school for the blind, it improves short vision life span phenomenon which many student suffer from. In addition, it increases readability by improving the contrast rate between background color and color of the letters.
The function of color mode helps students to adopt the color of letter with their eyes which can increase the efficiency of reading. Making a mark on the specified information is marker function which it is importantly used for students who are having hard time concentrating an object due to vision distortion or trembling.
One of the most important features using electronic magnifier is to analyze character of each student with low vision and to use by selecting appropriate setting.
Key words : low vision, a feature in vision, electronic magnifier, improving problems for low vision