Color Vision Screening
Screen for colour-vision differences on your device
Ishihara-style plates and a Farnsworth D-15 arrangement task — educational and device-dependent. Sign in to take it; results include dual modern + Ayurvedic insight packs.
Understanding colour-vision screening
Adults curious about possible colour-vision differences who understand this is a home-device screen — not an occupational or clinical certification exam.
What this screening does
Pseudoisochromatic plates (Ishihara-style) probe whether certain coloured numerals or paths are distinguishable. A Farnsworth D-15 arrangement asks you to order coloured caps by hue. Together they offer an educational hint about colour discrimination on your device.
Why devices matter
Phone and laptop screens differ in colour gamut, night-shift filters, brightness, and reflection. Ambient light and blue-light filters can change what you see. Clinic exams use controlled lighting and calibrated materials — home screens cannot match that.
How ayuveda.ai uses it
Results produce an educational screening summary and dual insight packs (modern + Ayurvedic sensory framing). They are for learning and curiosity — never for job fitness, pilot licensing, or clinical diagnosis.
Model / tradition: Ishihara-style pseudoisochromatic plates plus Farnsworth D-15 arrangement on your screen. Lighting, display calibration, and brightness vary — results are educational only.
What you will do
Two complementary tasks give a fuller educational picture than plates alone.
Ishihara-style plates
Numeral / path recognition
“Spot figures in coloured dots”
- View plates at a comfortable distance
- Say what number or path you see — or that you see none
- Do not zoom in a way that breaks the plate design
- Guessing randomly reduces educational value
Farnsworth D-15
Hue arrangement
“Order colours by similarity”
- Arrange caps from a fixed starting colour
- Work by hue similarity, not brightness alone
- Take your time — rushing increases errors
- Screen quality strongly affects this task
Device & lighting prep
Before you start
“Control what you can”
- Turn off night mode / true tone / blue filters if possible
- Use moderate brightness in a lit room without glare
- Avoid tinted sunglasses or coloured room lighting
- Prefer a larger, well-lit screen when available
Not a certificate
Limits of home screens
“Educational, not occupational”
- Cannot certify colour vision for work or licensing
- Cannot replace clinic anomaloscope or formal testing
- Unexpected results → see an eye-care professional
- Children and occupational needs need formal exams
Colour vision vs visual acuity
Colour-vision screening asks how well you discriminate hues. Visual acuity asks how sharp detail looks at distance. You can have excellent acuity with colour-vision differences — or the reverse. Screen both if you are curious; certify neither at home.
Explore Visual Acuity ScreeningHue
Colour vision
Ishihara-style plates and D-15 arrangement — educational colour discrimination on your device.
Sharpness
Visual acuity
Digital logMAR chart — educational distance detail discrimination, not a refraction.
How it works
Prepare your screen, sign in, complete plates and D-15, then review educational insights.
- 1
Prepare device and lighting
Disable colour filters if you can, set comfortable brightness, and reduce glare. Poor setup produces misleading screens.
- 2
Sign in and start screening
Results save to your dashboard. Guests log in or create an account first.
- 3
Complete plates and D-15
Answer plates honestly, then arrange hues carefully. Do not photograph and enhance plates to “cheat” the education.
- 4
Review summary and insight packs
Read educational framing. For occupational or clinical needs, book a professional eye exam.
How to screen well
Environment matters as much as eyes. Spend a minute on setup before the first plate.
- Turn off night shift, grayscale, and strong colour filters when possible.
- Sit at a normal viewing distance — do not press your face to the screen.
- If a plate is unclear, say so; random guessing muddies the summary.
- Treat surprising results as a reason to see an optometrist or ophthalmologist — not as a workplace certificate.
What you get
- Educational summary of plate and D-15 performance on your device
- Prep reminders that highlight lighting and display limits
- Dual modern + Ayurvedic insight packs after screening
- Clear statement that results are not occupational certification
Color vision FAQs
It is Ishihara-style educational screening on a consumer display. Clinical Ishihara exams use controlled lighting and printed or calibrated materials.
Educational disclaimer
Educational screening only. Screen colour, brightness, and ambient light vary widely — this is not a clinical Ishihara exam, not occupational certification, and not a substitute for assessment by an eye-care professional.
Screen colour vision on your device
Prepare lighting, complete plates and D-15 in about 10–15 minutes, then review educational packs — see a professional for certification needs.