VEHICLE AND CONTROLLING METHOD USING IRIS AUTHENTICATION

A vehicle includes: an iris sensor configured to recognize an iris of a driver and obtain iris data; an infrared camera configured to recognize a face of the driver, obtain face data, and detect an obstructive element covering at least a portion of the iris from the face of the driver; and a controller configured to perform iris authentication based on the iris data and control a lighting apparatus to change brightness of lighting in the vehicle in response to the obstructive element being detected.