identity project

Now retinal scanning is thought to be the most accurate biometric, much more so than fingerprints. The error rate for fingerprint identification is sometimes as high as 1 in 500. A retinal scan, on the other hand, boasts an error rate of 1 in 10,000,000. Fingerprinting is of course the most popular test, largely due to the economics as retinal scanning devices are still expensive but also because it is generally not that easy to use.

It works using a low intensity light source and an optical coupler that reads the patterns of blood vessels at the back of the eye. There is no known way of replicating a retina either and the retina from someone deceased deteriorates too fast to be of any use.