Frequently asked questions about iris recognition

Frequently asked questions about iris recognition


We are frequently asked a number of questions about iris recognition, the following is a summary of the ones we hear most:

Q:  What is an iris?

A:  The iris is an internal organ that is part of the eye (protected by the eyelid, cornea and aqueous humor).  It is part of the middle coat of the eye and lies in front of the lens.  It is the only internal organ of the body that is externally visible.

Q:  Is the iris unique?

A:  Yes - no two eyes have the same distinctive iris patterns, so even identical twins and a clone of a human would have unique iris patterns.

Q: Is the iris affected by laser surgery or disease?

A:  No, eye surgeries do not affect the iris at all.

Q: How do the imagers work?  What information do they capture?

A: Iris recognition is a contactless technology, the person looks into an imager from a distance of 30cm.  The imager captures the iris as a photograph, converting it into an irisguard Unique Verifiable Identity template that is used for ongoing cross-matching purposes. 

Q: How accurate is iris recognition?

A: It is widely accepted and proven that iris recognition is the most accurate biometric technology available today.  In field trials,no fale matches were encountered in over two hundred billion cross-comparisons.  irisguard's systems are 100% accurate and error-free.

Q: Can the technology be fooled by contact lenses or fake eyes?  Can someone remove my eyes and use them as fake ID?

A: irisguard's imagers have inbuilt countermeasures and fraud detection, so they easily recognise attempts to fool the system using photographs or lenses.  The iris is an involuntary muscle and becomes fully relaxed on death or removal, so the idea behind stealing an eye for ID purposes is scientifically false, despite many Hollywood films claiming the opposite.

Q: Are iris imagers safe to use?  Do they affect pregnant women or create any other health risks?

A: Iris imagers simply take a photograph of the iris, there are no flashes or bright lights.  All irisguard imagers are FCC and CE compliant and approved to meet International eye safety standards.  There are no harmful emissions or radiation, so they are perfectly safe for anyone to use, pregnant or not.