| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an eye target presentation device, an optometric apparatus and the eye test method by using the optometric apparatus capable of measuring eyesight of a subject easily by taking no time. <P>SOLUTION: A display screen 15 of an eye target presentation device 13 which is shown to a tested eye displays continuously different Landolt rings 11b, having the same directions of notches 11c and different sizes respectively, in ascending order of size. <P>COPYRIGHT: (C)2009,JPO&INPIT |
