The invention relates to a method for operating a driver assistance system (2) for a motor vehicle (1), in which a driver-specific blind spot (3) in the surroundings (4) of the motor vehicle (1) is determined, wherein at least one boundary edge (8, 9) of a driver-specific field of vision (5) of a motor vehicle driver is determined as a function of a movement behavior of the motor vehicle driver's head and/or as a function of the visual faculty of the motor vehicle driver, and the dimension (a2) and/or a local position of the driver-specific blind spot (3) in the surroundings (4) of the motor vehicle (1) is determined as a function of the determined boundary edge (8, 9) of the driver-specific field of vision (5).