Retinal scan

A retinal scan was a biometric scanning technique that used the unique patterns on a person's retina to identify them.

Computers could be secured with retinal scans to prevent unauthorized access.

Darth Scabrous' HK droid used this to verify the identity of the bounty hunter Tulkh before escorting him to Darth Scabrous's lab.

During Jerec's search for the Valley of the Jedi, renegade Kyle Katarn was detected on Sulon. Residents of Barons Hed were eye-scanned by Imperial Remnant forces before entering the city, forming lines before its gates.

Text and facts from the “Retinal scan/Legends” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.