A method for manufacturing an optical device, includes a step of obtaining a plurality of test images in each of which a spectral intensity of a first color component, a spectral intensity of a second color component and a spectral intensity of a third color component are separately changeable, a step of changing the spectral intensity of the first color component in at least a first test image of the plurality of test images, a step of changing the spectral intensity of the second color component in at least a second test image of the plurality of test images, a step of obtaining a spectral intensity Rs of the first color component and a spectral intensity Gs of the second color component satisfying a particular test condition when a subject is looking at the first and second test images, and a step of manufacturing the optical device including an optical element configured to adjust a spectral intensity of the first color component and a spectral intensity of the second color component, in light transmitted through the optical element, based on the spectral intensity Rs and the spectral intensity Gs.
