1. An anti-cheating system for online examination, comprising: a computer having a non-transitory computer readable medium, a processor and a computer-monitor to display a first part of an exam question; an eye glasses having an eye-monitor to display a second part of said exam question, an eye-recognition device to continuously monitor and obtain the iris-pattern of a wearer of said eye glasses, and said eye glasses having means to connect to said computer; a computer readable program to compare the iris-pattern of said wearer with a pre-stored-iris-pattern of an examinee, to display said second part of said exam question on said eye monitor if said wearer is identified as the examinee by comparing iris patterns, otherwise do not display said second part, and to receive an answer for an exam question from said wearer, whereby the examination process is stopped as soon as the eye-recognition device does not receive the correct iris pattern from the wearer.