Digital pseudoisochromatic plate test (Ishihara-style) for pre-employment colour vision screening. Detects protan, deutan, and tritan colour deficiencies with severity ratings. Suitable for electrical, mining, aviation, and driving roles.
Overview
Colour vision deficiency — commonly called colour blindness — affects approximately 8% of males and 0.5% of females in Australia. While most roles are unaffected, certain occupations require normal colour vision as a safety requirement: electrical trades (identifying wire colours), aviation (signal identification), mining (hazard indicator colours), road transport (traffic signal recognition), and some healthcare roles.
Refchecks delivers a digital pseudoisochromatic plate test — similar in structure to the Ishihara colour vision test — that candidates complete online. The test presents plates containing numbers or patterns embedded in coloured dot fields. People with colour deficiencies have difficulty distinguishing the patterns, enabling detection of protan (red-green, red-axis), deutan (red-green, green-axis), and tritan (blue-yellow) deficiencies.
Results include the deficiency type (if any) and severity classification: none, mild, moderate, or severe. Screen calibration instructions are provided to candidates before the test to ensure colour accuracy.
What's Included
Pseudoisochromatic plates presented digitally. Candidates identify numbers or patterns in coloured dot arrays — the same principle as clinic-based colour vision testing.
The test screens for protan (red axis), deutan (green axis), and tritan (blue-yellow axis) deficiencies. Each has different safety implications for different roles.
Results are classified as none, mild, moderate, or severe. Severity determines whether a deficiency is likely to create safety risks for the specific role.
Candidates are guided through a screen calibration step before testing to ensure colour rendering accuracy on their device.
Employers receive a detailed report showing deficiency type, severity, and role-relevant safety notes immediately after candidate submission.
Process
The employer initiates the colour vision test from the dashboard. The candidate receives a secure link and screen calibration instructions.
The candidate adjusts their screen settings using the guided calibration tool to ensure colour accuracy before testing begins.
The candidate works through a series of pseudoisochromatic plates, identifying numbers or patterns within timed intervals.
The system classifies the result by deficiency type and severity. The employer receives a report immediately with role-relevant interpretation.
Turnaround & Pricing
Turnaround Time
Immediate upon candidate submission
Per assessment
From $15
Bundled with visual acuity test at a discounted rate.
FAQ
Related Services
Join recruitment teams who have simplified their verification process. Start your free trial today — no credit card required.