METHOD AND DEVICE FOR DETERMINING AT LEAST ONE ASTIGMATIC EFFECT OF AT LEAST ONE EYE

The present invention refers to a method, a computer program, and a device (110) for determining at least one astigmatic effect of at least one eye (112) of a person (114) and to a related method (210) for producing at least one spectacle lens (212) for the at least one eye (114) of the person (114). Herein the method for determining at least one astigmatic effect of at least one eye (112) of a person (114) comprises the following steps:a) displaying at least one image (140) to at least one eye (112) of a person (114), wherein the at least one image (140) comprises at least one line (142, 142'), wherein the at least one line (142, 142') comprises a plurality of sections, wherein an orientation of each section with respect to an optical axis of the image (140) differs from each other;b) recording at least one reaction (222) of the person (114) to the at least one image (140) at at least one point in time; andc) determining at least one value (216) for at least one astigmatic effect of at least one eye (112) of the person (114) by evaluating the at least one reaction (222) of the person (114) at the point in time,wherein the at least one reaction (222) of the person (114) to the at least one image (140) comprises indicating a position on the at least one line (142, 142'), wherein the position on the at least one line (142, 142') refers to at least one transition (166, 166') from a first appearance of the at least one line (142, 142') to the person (114) into a second appearance of the at least one line (142, 142') to the person (114), or vice-versa, wherein the second appearance of the at least one line (142, 142') to the person (114) differs from the first appearance of the at least one line (142, 142') to the person (114), wherein the at least one value (216) for the at least one astigmatic effect is determined from the position of the at least one transition (166, 166') on the at least one line (142, 142').