Multi-ring lens, systems and methods for extended depth of focus

A system for manufacturing an ophthalmic lens for an eye of a patient, the system comprising:

• an input that accepts an ophthalmic lens prescription for a patient eye;
• and
• a manufacturing assembly that fabricates the ophthalmic lens based on the ophthalmic lens prescription, wherein the ophthalmic lens includes a first lens surface having an aspherical profile and a second lens surface having a diffractive profile including a central zone and a peripheral zone, the central zone configured to distribute a first non-zero percentage of light toward a far focus and a second non-zero percentage of light toward an intermediate focus and including at least two echelettes each having equal step heights, the peripheral zone configured to distribute a third non-zero percentage of light toward the far focus and a fourth non-zero percentage of light toward the intermediate focus and including a plurality of echelettes each having a step height that is less than the step height of the at least two echelettes of the central zone, wherein the third non-zero percentage of light is greater than the first non-zero percentage of light.