Why is there a sediment produced on the contact lenses?

After wearing the contact lenses, the lens often can see some white dots or pieces of precipitation material, over time, such lenses are not only uncomfortable to wear, the texture is no longer so soft. So, why will these sediment appear, and what harm will produce?

The main source of the sediment on the lens is the tear discharge inside the eye. Human eyes in the process of normal metabolism will produce a variety of secretions, mainly including proteins, lipids, inorganic salts, and so on, they will be washed away by the tears or when we clean the eyes. When wearing contact lenses, the water in the tears evaporate, these residues will be tightly adsorbed on the inner surface of the lens under the action of charge, resulting in sediment.

Of course, in addition to the internal eyes, external factors such as dust particles in the air, cosmetics on the face, or eye moistening fluid and other products are also one of the important sources of precipitation, external pollutants will also be adsorbed on the lens because of the charge. Therefore, author will generally recommend that you wear good contact lenses before makeup, and try to reduce the use of powder cosmetics, but also to avoid wearing contact lenses in the wind, dust and other weather.

The generation of sediment is anytime, anywhere, as long as the contact lenses, will inevitably accumulate on the lens. If it is not cleaned in time, it will directly cause blurred vision, foreign body sensation, but also affect the oxygen permeability of the lens, change the texture of the lens, and the accumulated sediment will breed a large number of bacteria, indirectly leading to the increased risk of infection.

Therefore, lens hygiene is always the most direct connection with eye health, which must be rubbed and cleaned in time after each lens, so as to avoid sediment deposition to the greatest extent and difficult to completely remove it. Wear contact lenses must not be lucky lazy, must be frequent care. To reduce sediment production, it is necessary to reduce the wear time and replace the contact lenses with highly permeable oxygen. If you really cant do timely cleaning, you can also choose to buy daily throw contact lenses, to abandon the trouble of care.