Editing Retinal scan (section)

==Uses==
Retinal scanners are typically used for authentication and identification purposes. Retinal scanning has been utilized by several government agencies including the [[Federal Bureau of Investigation|FBI]], [[Central Intelligence Agency|CIA]], and [[NASA]], and has also been used in prisons.<ref>[http://et.wcu.edu/aidc/BioWebPages/Biometrics_Eye.html Iris/Retinal Identification.] {{webarchive |url=https://web.archive.org/web/20070426110015/http://et.wcu.edu/aidc/BioWebPages/Biometrics_Eye.html |date=April 26, 2007 }}  Wcu.Edu.  Retrieved on 2007-04-02.</ref> Retinal scanning also has medical application. Communicable illnesses such as [[AIDS]], [[syphilis]], [[malaria]], [[chicken pox]] and [[Lyme disease]] as well as [[hereditary disease]]s like [[leukemia]], [[lymphoma]], and [[sickle cell anemia]] affect the eyes. [[Pregnancy]] also affects the eyes. Likewise, indications of chronic health conditions such as [[congestive heart failure]], [[atherosclerosis]], and [[cholesterol]] issues first appear in the eyes.<ref>O staff, Courtney.  [http://www.physorg.com/news6134.html  "Retinal Scans Do More Than Let You In The Door."]  Retrieved on 2007-04-02.</ref> Retinal scanning is sometimes confused with [[iris recognition]], which has been employed for a wider scope of applications.