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I'm going to go out on a limb somewhat here, but if you are referring to the use of a human eye as a password then you are talking about a biometric device known as a retinal scanner. They do exist as lock devices primarily, but could be used for just about anything that requires authentication that is difficult to fake.
What else can I help you with?
What are the password for the password machine in yu gi oh 5ds tag force 4?
what is the password for red-eyes b. dragon?
What is the password for blue-eyes shining dragon?
53347303
What is the Red eyes black dragon password?
showdown
What is the password to get Red-Eyes Darkness Dragon?
Red-Eyes Darkness Dragon's password is: 9-6-5-6-1-0-1-1(FYI, you can find any card's password by looking at the bottom left corner of the card.)
Is it possible to be born with red eyes?
No it is not possible
What is th yuioh vualt password for blue eyes ultimate dragon?
"SUPREME" is the code for Blue-Eyes Ultimate Dragon.
Whats the password for Blue eyes ultimate dragon in yugioh the dueli?
23995346
How is it possible if a girl has blue eyes when her parents have hazel eyes and her sister has hazel eyes?
Its very possible. Either the grandparents or great grandparents had blue eyes. Someone in the family must have blue eyes.
Father has gray eyes you have blue eyes child has green eyes is this possible?
yes it is!
Is it possible for someone to have orange eyes?
Yes, it is possible for someone to have orange eyes due to a rare condition called amber eyes, which can appear orange in color.
What is the password to get a blue eyes white dragon in yugioh the eternal dulists soul?
The code for the "Blue-Eyes White Dragon" card is 80906030.
Can humans have 3 eyes?
no it is not possible for any human to have 3 eyes.
