You can order on the phone: 0800 249 4219

Ekomi 4.7/5.0

Log in

Dehydration of the contact lenses

Dehydrated contact lenses (drying) can occur especially at higher temperatures and when the air is dry, incomplete or irregular blinking, age or contact lenses.

During dehydration varies the geometrical parameters of the material – a thinner contact lens, smaller radius of curvature and diameter. Thinning tear film:/glossary/tear-film.html, originally flat application becomes steeper and the edges of the lenses can irritate the eye surface. It also reduces elasticity of the lens as it becomes harder and more brittle. Reduced water content reduces oxygen permeability, reduces wettability of the surface and increases refractive index of the contact lenses.


No comments

*Required fields

Don't miss the news from the world
of happy lenses!

According to the law on sales registration, the seller is obliged to issue and provide receipts for all clients. It is also obligatory for the seller to register the sale with the tax administrator with no delay, within 48 hours in case of technical failure.