Abstract
Visual prostheses are the one to recover the visual sense by means of engineering techniques. They have been developed in and out of our country. The purpose of this study is Lo determine the necessary specification of visual prostheses. Therefore we have developed a simulator which can translate a normal vision into a prosthetie vision. Then we selected the reading as one of the most typical task inourdaily lives. and estimated the reading ability under the condition of simulated prosthetic vision. We quantitatively evaluated the reading ability by using MNREAD. a commonly-used reading ability test. As a result. It was suggested that the range 4-8 is appropriate as the levels of electric stimulation.
