A progressive ophthalmic lens element including a lens surface having an
upper viewing zone having a surface power to achieve a refracting power
corresponding to distance vision, a lower viewing zone having a different
surface power than the upper viewing zone to achieve a refracting power
corresponding to near vision; and an intermediate zone extending across
the lens element having a surface power varying from that of the upper
viewing zone to that of the lower viewing zone one or more of the upper,
intermediate and lower viewing zones being designed optically to reduce
or minimise a selected measure of blur for the corresponding range of
object distances; and at least a portion of the peripheral region of the
surface of the ophthalmic lens element being designed to reduce or
minimise one or more surface characteristics known to correlate with the
sensation of swim.