A progressive-power lens producing method for designing a progressive-power lens (10L, 10R, 20L, 20R) having two distinct vision points (DP, NP) and at least one quasi-distinct vision point (6LP, 6RP; 8), the method comprising: setting priorities among at least three target objects viewed through the progressive-power lens (10L, 10R, 20L, 20R); assigning a point on the progressive-power lens (10L, 10R, 20L, 20R) through which target objects having first and second levels of the priorities are viewed as the distinct vision points (DP, NP), setting each area including each of the distinct vision points (DP, NP) as a far region and a near region, and setting a progressive corridor between the two distinct vision points (DP, NP); assigning a point on the progressive-power lens (10L, 10R, 20L, 20R) through which a target object having a third or lower level of the priorities is viewed as the quasi-distinct vision point (6LP, 6RP; 8) and setting an optimization coefficient for the target object based on the distance between the quasi-distinct vision point (6LP, 6RP; 8) and the target object and the magnitude of variation of the distance between the quasi-distinct vision point and the target object, wherein the optimization coefficient, indicating a balance between aberration and a dioptric power error, is set to 0 if the variation of the distance is large, meaning that aberration-oriented optimization is performed, and wherein the optimization coefficient is set to a value ranging from 0.5 to 1 if the variation of the distance is small, wherein an optimization coefficient of 1 means that dioptric power error-oriented optimization is performed, and an optimization coefficient of 0.5 means that balanced optimization is performed; setting the dioptric power necessary at the quasi-distinct vision point (6LP, 6RP; 8) by calculating the dioptric power based on a prescribed far dioptric power of the spectacle wearer and the distance between each quasi-distinct vision point and a target object, or by setting the dioptric power by using a preset dioptric power as the dioptric power at the at least one quasi-distinct vision point; optimizing the amounts of the aberration and the dioptric power error at the quasi-distinct vision point (6LP, 6RP; 8) based on the optimization coefficient and the dioptric power; and producing the progressive-power lens. setting priorities among at least three target objects viewed through the progressive-power lens (10L, 10R, 20L, 20R); assigning a point on the progressive-power lens (10L, 10R, 20L, 20R) through which target objects having first and second levels of the priorities are viewed as the distinct vision points (DP, NP), setting each area including each of the distinct vision points (DP, NP) as a far region and a near region, and setting a progressive corridor between the two distinct vision points (DP, NP); assigning a point on the progressive-power lens (10L, 10R, 20L, 20R) through which a target object having a third or lower level of the priorities is viewed as the quasi-distinct vision point (6LP, 6RP; 8) and setting an optimization coefficient for the target object based on the distance between the quasi-distinct vision point (6LP, 6RP; 8) and the target object and the magnitude of variation of the distance between the quasi-distinct vision point and the target object, wherein the optimization coefficient, indicating a balance between aberration and a dioptric power error, is set to 0 if the variation of the distance is large, meaning that aberration-oriented optimization is performed, and wherein the optimization coefficient is set to a value ranging from 0.5 to 1 if the variation of the distance is small, wherein an optimization coefficient of 1 means that dioptric power error-oriented optimization is performed, and an optimization coefficient of 0.5 means that balanced optimization is performed; setting the dioptric power necessary at the quasi-distinct vision point (6LP, 6RP; 8) by calculating the dioptric power based on a prescribed far dioptric power of the spectacle wearer and the distance between each quasi-distinct vision point and a target object, or by setting the dioptric power by using a preset dioptric power as the dioptric power at the at least one quasi-distinct vision point; optimizing the amounts of the aberration and the dioptric power error at the quasi-distinct vision point (6LP, 6RP; 8) based on the optimization coefficient and the dioptric power; and producing the progressive-power lens.