With contact lenses we can do sports freely and see things clearly, but we should not stare at the computer for a long time. Most of the contact lenses wearers will feel dry in the eyes or have other uncomfortable feelings after facing the computer screen for a long time. This is because they don’t blink eyes frequently. Currently, the commonly used contact lenses are made from high polymer material, so their oxygen permeability is not so good, which prevents the eyes from breathing oxygen to some extent and thus causes the cornea anoxygenous. Besides, the long time staring at computer makes the eyes under high pressure. The normal people blink more than 20 times every minute; while people who wear contact lenses sitting in front of computer blink only 4 to 5 times per minute.

What’s worse, almost all contact lenses will gradually decompose and degenerate under the radiation from the computer. Some of these decomposed micromolecule will reach the crystalline lens through lymph circulation and then combine with the repaired tissue of the crystalline lens, so that to form new polymer. A small amount of polymer will be discharged from the inner part of eyeball to its surface and finally be discharged in the form of gum. However, when the polymer is too much the dust and debris in the eyes will accumulate in the crystalline lens, thus gradually develops into cataract.

Therefore, for myopic people who have to face the computer for a long period everyday, they had better wear framed glasses. If they must wear contact lenses, they should pay attention to the rest of their eyes. For instance, look into the distance after one hour staring at the computer; not rub the eyes but wet them by using the eye drops that don’t contain preservatives when they feel dry in their eyes; take off the contact lenses to leave sufficient time for their eyes to discharge wastes during having rest; and wash hands before taking off their contact lenses when they are going to bed. Moreover, do replace the contact lenses once their service life is exceeded.

Many myopic fans of outdoor activities would love to wear contact lenses in the open air, but do you know contact lenses have two enemies, namely cold and dirty. But here are some tips to cope with them.

As we usually contact some dirty things outdoors, if there are dirt or other such small particles between the contact lens and the eyeball our eyes will be painful while they are rolling because of friction which will even lead to permanent eye diseases. Therefore, please make sure your finger is clean when you indeed have to touch your eyeball or take off the contact lenses. If it is impossible to wash your hands with soap, you should at least rinse your fingers that are about to contact your eyes with the water you take with. If there is no water, it is better to wash your finger with the contact lens solution than to contact your eyes directly.

In order to avoid the contact lenses from losing during taking on and off while you are camping, the best solution is to take on and off your contact lenses with your elbow supporting on the damproof pad or sleeping bag. In this way you can easily find your contact lenses even if they fall down the damproof pad or sleep bag by accident. What’s more, they will be much cleaner than falling down on the ground.

Do remember to take a bottle of solution with you while preparing your travel bag before setting out. If you forget to bring it carelessly, you can put the boiled water into a clean vessel, and then use it instead of contact lens solution after it is cooled.

If you intend to stay outdoors for a long time you must take a pair of framed glasses with you, otherwise you will get troubled once your contact lenses are lost. Additionally, OSA points out that long-time wearing of contact lenses is harmful to the eye health, so it is better to wear framed glasses while camping.