A method for determining an ophthalmic lens adapted to a wearer, the method comprising: - a wearer data providing step, during which wearer data comprising at least an indication of the prescription of the wearer are provided, - a locomotion scenario providing step during which a locomotion scenario is provided, the locomotion scenario comprising at least an input locomotion parameter and visual environment data indicative of a visual environment, the locomotion parameter comprising at least movement data indicative of at least a translation movements of the head of the wearer upon movement in a visual environment, - an output parameter providing step during which a target value of an output parameter is provided, the output parameter being a locomotion parameter of the wearer or an optical parameter of the ophthalmic lens having an impact on a locomotion parameter of the wearer, - an ophthalmic lens determining step, during which an ophthalmic lens adapted to the wearer is determined based at least on the wearer data so as to have the output parameter as close as possible to the target value of the output parameter when carrying out the locomotion scenario using the ophthalmic lens, wherein the output parameter is the retinal flow of the wearer when carrying out the locomotion scenario using the ophthalmic lens.
