[Investigation of color vision using a web-based color vision test]

Area of Science:

• Ophthalmology
• Human Visual Function

Background:

• Internet-based screening tests for visual functions are theoretically feasible.
• Web-based tests must demonstrate comparable results to conventional methods for clinical utility.
• A novel web-based color vision test was created using pseudoisochromatic plates.

Purpose of the Study:

• To develop and validate a web-based color vision test.
• To compare the results of the web-based test with traditional pigment-based color plates.
• To assess the test's comparability for both color-efficient and color-deficient individuals.

Main Methods:

• The web-based test was developed using HTML, Java, and Perl, based on Velhagen and Broschmann's pseudoisochromatic plates.
• Sixty-five subjects, including nine with color deficiency, were tested using both the web-based luminescence plates and conventional pigment plates.
• Statistical analysis involved calculating correspondence and 95%-confidence intervals.

Main Results:

• Overall test result correspondence was high at 0.98 (95%-CI: 0.91–0.99).
• For color-deficient subjects, test correspondence was 1.0 (95%-CI: 0.71–1.0).
• Results indicate strong agreement between the web-based and conventional color vision tests.

Conclusions:

• The web-based color vision test using luminescence plates provides comparable results to pigment plates under standardized conditions.
• The test is effective for both color-efficient and color-deficient individuals.
• Further research is recommended to establish its utility as an internet-based screening tool.