Eye Tracking System has been in study for more than a decade now. Our project ‘Eye Gesture Interpreter’ works on the principles of Eye Tracking Technique. An algorithm has been designed in MATLAB for Iris recognition. It has been designed to aid the patients having limited movement of upper limb. It identifies the user’s gaze on the screen by considering Iris as the circle and locating its position relative to the eye. We have designed individual GUI in MATLAB for the execution of algorithm which gives us the prototype for the desktop keyboard by providing three keys on the screen at the different corners. A MATLAB interfaced camera captures images, algorithm detects iris as the circle and the results are displayed on the screen. During the execution of algorithm the user was asked to look at any key and his gaze was then identified. Eye Gesture Interpreter has given us the cost effective and convenient method for Iris recognition technique.