Biometrics is an automated method of capturing a person?s unique biological data that distinguishes him or her from another individual. Iris recognition has emerged as one of the most powerful and accurate identification techniques in the modern world. It has proven to be most fool proof technique for the identification of individuals with out the use of cards. PIN?s and passwords. It facilitates automatic identification where by electronic transactions or access to places, information or accounts are made easier, quicker and more secure. The technical performance capability of the iris recognition process far surpasses that of any biometric technology now available. Iridian process is defined for rapid exhaustive search for very large databases: distinctive capability required for authentication today. The extremely low probabilities of getting a false match enable the iris recognition algorithms to search through extremely large databases, even of a national or planetary scale. As iris technology grows less expensive, it could very likely unseat a large portion of the biometric industry, e-commerce included; its technological superiority has already allowed it to make significant inroads into identification and security venues which had been dominated by other biometrics. Iris-based biometric technology has always been an exceptionally accurate one, and it may soon grow much more prominent.