A modified pseudoisochromatic ishihara colour vision test based on eastern arabic numerals

Area of Science:

• Ophthalmology
• Optometry
• Genetics

Background:

• Congenital color vision defects impact 8% of males and 0.5% of females.
• Pseudoisochromatic Ishihara plates are standard for diagnosing red-green congenital color blindness.
• Existing Ishihara plates have layout limitations and are not accessible to non-English readers.

Purpose of the Study:

• To adapt the Ishihara color vision test for Eastern Arabic numeral users.
• To improve early diagnosis of color vision defects in Middle Eastern, Central Asian, and African populations.
• To address shortcomings in the current Ishihara plate layout.

Main Methods:

• Modification of the original Ishihara pseudoisochromatic plates.
• Translation of standard Ishihara plates to Eastern Arabic numerals.
• Proposed new plate design for illiterate populations.

Main Results:

• Development of modified Ishihara plates using Eastern Arabic numerals.
• Potential for improved accessibility and diagnosis in specific regions.
• Need for further research on validity, reliability, and repeatability.

Conclusions:

• The modified Ishihara plates offer a potential solution for diagnosing color vision defects in Arabic-speaking populations.
• Further validation studies are essential to confirm the efficacy of the new plates.
• This adaptation can enhance early detection and management of visual impairments in underserved regions.