Method for determining an optical equipment comprising at least one optical lens and a spectacle frame

Method implemented by computer means for determining an optical equipment comprising at least one optical lens and a spectacle frame, the optical lens being adapted to be mounted in the spectacle frame in front of a wearer eye, the method comprising: - a wearer data providing step, during which wearer data relating at least to the wearer's optical requirements, to a wearer's face morphology and to the optical equipment position in respect with the wearer face when said optical equipment is worn by said wearer are provided, - an optical cost function providing step, during which an optical cost function is provided, the optical cost function being related to an optical function of the at least one optical lens when said optical equipment is worn by said wearer, - a light protection cost function providing step, during which a light protection cost function is provided, the light protection cost function being related to at least a spectral irradiance estimation over the wearer eye and/or wearer skin in a peri-orbital zone of the wearer eye under at least a given condition when said optical equipment is worn by said wearer, - an optical equipment determining step, during which the optical equipment that minimizes the difference between a global cost function and a target value of the global cost function is determined, the global cost function being a function of the optical and the light protection cost functions.