Method for testing visual function capable of guaranteeing validity thereof

A method for testing a color function of an examinee using a computer system, the method comprising the steps of:

• i) displaying at least one color-testing target which is differently discriminated by a normal person and protanope;
• ii) deciding the examinee to be a protanope if the examinee gives a response to the target, which is discriminated by a protanope;
• and
• iii) checking a degree of red blindness by using at least two targets having a different amount of a red component.

A method for testing a visual function of an examinee using a computer system, the method comprising the steps of:

• 1) displaying on a screen a middle value target in a testing range from a lower limited value to a upper limited value;
• 2) inputting a response to the middle value target from the examinee;
• 3) ascertaining whether the response is right or wrong;
• and
• 4) deciding the examinee's visual acuity, comprising the steps of:
• 4-1) if the response is wrong, changing the upper limited value based on the middle value target and repeatedly carrying out the steps of 1) to 3);
• and
• 4-2) if the response is right, changing the lower limited value based on the middle value target and repeatedly carrying out the steps of 1) to 3).