It is not uncommon to suffer eye dryness as a result of air conditioning, working in front of a computer or other tiring activities. Contact lens wearers are exposed to even greater risk of eye dryness regardless of the type of lenses they are using. In such cases, the use of eye drops that mimic natural human tears are the best solution. They lubricate and wet soft and rigid, gas permeable contact lenses as well as amortize lenses prior to application. They are very helpful in case of eye irritation and tiredness caused by extended lens wear.