The disclosure relates to a pulsed laser system including a laser source that generates a laser beam, a scanner that controls the location of a beam focal point of the laser beam and also the location of a photodisruption formed at the beam focal point in a cornea of an eye, a computer that generates instructions to the laser source and scanner to direct the formation of a regular photodisruption pattern in the cornea, and a noise source that disturbs the location of each photodisruption to cause an irregular photodisruption pattern to form in the cornea, such that diffraction of light by the cornea after formation of the photodisruption pattern is decreased or avoided.
