A new way to use the Ishihara test.

Area of Science:

• Ophthalmology
• Optometry
• Vision Science

Background:

• The Ishihara plates are a standard tool for assessing color vision.
• The test is primarily used for detecting congenital red-green color blindness.
• It can also identify acquired color vision defects, but has limitations.

Purpose of the Study:

• To address the disadvantages of the current Ishihara plate arrangement.
• To present a modified Ishihara test for improved usability.
• To simplify the administration and interpretation of color vision testing.

Main Methods:

• Rearrangement of the Ishihara plate sequence.
• Introduction of a novel recording chart.
• Evaluation of the modified test's efficiency.

Main Results:

• The modified Ishihara test simplifies test administration.
• The new recording chart enhances interpretation accuracy.
• The revised test offers a more streamlined approach to color vision assessment.

Conclusions:

• The modified Ishihara plates and chart offer a practical improvement.
• This modification enhances the efficiency of diagnosing color vision defects.
• The revised test is valuable for both congenital and acquired color vision assessment.