Provided are a method, a computer program and a device for noninvasively evaluating a state of a tear fluid and a tear fluid amount of a tear meniscus.Included are a binarization step of binarizing a tear meniscus image, obtained by capturing at least a part of a tear meniscus of a subject, using a predetermined threshold value； an extraction step of extracting a high luminance region indicating a tear meniscus part from the binarized image； and an evaluation step of evaluating a tear fluid state on the basis of the high luminance region.
