Biometric retinal scanning technology

The retina is an extremely fixed biological feature of the human body because it is "hidden" and is the most difficult system to deceive. The retina is invisible and therefore will not be forged.
The blood vessels in the retina absorb light more easily than the surrounding tissue and are easily identified by appropriate illumination. The pattern of the blood vessels above the human retina can be determined optically through the human eye. The blood vessels used for biometric distribution are distributed around the nerve retina, the farthest of the retinal four-layer cells. The intricate vascular network of the retina is a physiological feature that remains stable throughout a person's life.
Retinal scanning is one of the most famous biometrics developed in the 1980s. Because it is highly accurate and difficult to be forged, it is a reliable and most reliable biometric technology. Retinal scanning is performed by projecting a bundle of unperceived low-energy infrared beams into a person's eyes while viewing through the eyepiece of the scanner. Once the scanner device captures the retinal image, specialized software compiles the unique features of the retinal vascular network into a template.
Retinal scanning algorithms require high quality images that are not registered or verified by the user until the system is able to capture images of sufficient quality. Due to the need for multiple image captures, the retinal scanning biometric system often has a long registration time, which may cause user discomfort. However, once the user adapts to the process, a registered person can be identified in a few seconds by the retina scanning process.
Retinal scanners are used in many military bases, nuclear reactors, and other places where high levels of safety and accountability are required, as retinal scans are almost impossible to counterfeit and can be used as a safe authentication measure. In addition, because the retina decays rapidly after death, scanning can only be obtained from living people.
Retinal scans are also used for medical diagnosis. Examination of the eye with a retinal scan can help diagnose chronic health conditions such as congestive heart failure and atherosclerosis. Diseases such as AIDS, syphilis, malaria, and chickenpox, as well as genetic diseases such as leukemia, lymphoma, and sickle cell anemia, can also affect the eye and can be detected using retinal scanning techniques.

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