FAQ
Frequently asked questions about color blindness testing, color vision deficiency, and our services
Hot Questions
Test Accuracy
How accurate is the online color blindness test?
Our online test is based on the Ishihara method with approximately 85-90% accuracy. While it cannot replace professional medical diagnosis, it's very effective for preliminary screening.
What's the difference between online and hospital testing?
Hospitals use more comprehensive testing equipment and methods, including more complex color vision tests. Online tests are better suited for daily screening and self-testing.
Are the test results reliable?
Under appropriate environmental conditions (correct screen brightness, normal indoor lighting), test results have high reliability. Multiple tests are recommended to confirm results.
Usage Guide
How long does the test take?
The complete test typically takes 2-3 minutes, including 16 test questions.
Can I take the test on my phone?
Yes, but it's recommended to use devices with larger screens and better color display for more accurate results.
What preparation is needed before testing?
Ensure screen brightness is at 100%, test under normal indoor lighting, and avoid strong light or dark environments.
Results Interpretation
How do I interpret test results?
Results are divided into four levels: normal, mild, moderate, and severe, with detailed analysis and professional recommendations provided.
Can I share test results?
Yes, we provide one-click sharing functionality to share results on social media or send to friends.
How soon can I retest?
It's recommended to wait at least 1 week before retesting to avoid memory effects. You can retest anytime if environment or device changes.
Medical Questions
Can test results be used as medical diagnosis?
No, online tests are for screening reference only and cannot replace professional medical diagnosis. Consult an ophthalmologist if you have questions.
Is there treatment for color blindness?
Currently there's no cure for color blindness, but color blind correction glasses, assistive software, etc. can help improve color vision recognition.
Does color blindness affect career choice?
Certain occupations with strict color vision requirements may have restrictions, but most careers are unaffected. Consult a career counselor for advice.
General Questions
Is color blindness hereditary?
Yes, most color blindness is hereditary, usually inherited through the X chromosome, which is why more males are affected than females.
Can children take color blindness tests?
Yes, but it's recommended to use test versions specially designed for children. Generally recommended for children 5 years and older.
How to get color blindness support?
Help and advice can be obtained through color blindness support organizations, online communities, and professional ophthalmologists.