Wednesday, May 13, 2009

Best Contact Lenses For Dry Eyes

The normal pretty contacts or color changing contacts are made from soft polymer that contains 30-70 percent of water. This water is not desirable by contact lenses for dry eyes as there is tendency of extra water loss in the form of evaporation in dry eyes. If there will be more water content in the lenses then it is evident that there will be rapid water loss from eyes which will make the case of dry eyes even worse and you will keep feeling irritation all the time. There are many other reasons for eyes to go dry and this causes a person to produce less tears and moisture in the eye. Environmental factors like pollution, being exposed to smoke or dusty wind, heat in the room etc make the eyes go dry. The soft contact lenses tend to loose water rapidly and hence the need of some other material emerged when the soft contacts were no more suitable for dry eyes. Contact lenses for dry eyes are composed of material that is different from regular prescription and non prescription contact lenses.