Contact lens material and tear film stability has remained important in association with patient dryness symptoms. Lens hydration has been linked to the comfort of the wearer and perturbations of tear mechanism in contact lens wearer decrease the stability of tear film and thus decrease the comfort level. Evaporation of tear film has found to increase during lens wear. To date, silicone hydrogel lenses with surface technology that can mimic the ocular surface has found to be encouraging among wearers.