Retinal scan
Biometric method for identity verification / From Wikipedia, the free encyclopedia
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For diagnostic retinal examination, see Fundus photography and Ophthalmoscopy.
A retinal scan is a biometric technique that uses unique patterns on a person's retina blood vessels. It is not to be confused with other ocular-based technologies: iris recognition, commonly called an "iris scan", and eye vein verification that uses scleral veins.