There is provided a simulation device including: a first blur component generating unit configured to generate a first blur component based on distance data included in observation scene data in which the distance data is added to a computer graphics image, and a parameter regarding the non-progressive component included in the trial lens； a second blur component generating unit configured to generate a second blur component based on distance data included in the observation scene data and a parameter regarding a progressive component included in the progressive addition lens； a display blur component generating unit configured to generate a display blur component, based on the first blur component and the second blur component； a display blur component adding unit configured to add the display blur component to the observation scene data； and a display unit configured to display an observation image obtained by the display blur component adding unit, to a wearer wearing the trial lens.
