No needles required: A new eye-scanning tool flags anemia risks in seconds

Researchers developed a needle-free eye-scanning method that analyzes the inner eyelid to flag anemia risk in seconds.

The camera-based system uses computer vision to assess blood-vessel color and density as a proxy for hemoglobin levels.

Early validation found useful sensitivity, but performance can be affected by lighting, skin tone, and other confounders.

If refined, the tool could enable fast, low-cost anemia triage where blood tests are hard to obtain, especially in resource-limited settings.