A trial lens kit for determining a neurochromatic lens prescription for the eye. The trial lens kit includes a first plurality of trial lenses wherein each of the first plurality of trial lenses is operable to filter a particular wavelength of light. The first plurality of trial lenses corresponds to a first type of visual function improvement. The trial lens kit further comprises a second plurality of trial lenses where each of the second plurality of trial lenses is operable to filter a particular wavelength of light. The second plurality of trial lenses corresponds to a second type of visual function improvement. The first plurality of trial lenses and the second plurality of trial lenses are operable for determining a neurochromatic prescription.
