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Voriso Blog

Voriso Blog

Replacement Period Of Contact Lenses

Regardless of age, the health of the eye system is an aspect that should constantly concern us, because eyes are very important in everyday life.


Whether you have vision problems and wear contact lenses with diopters or you are just a carrier of colored contact lenses, you need to be very careful about their shelf life. Lenses have direct contact with a very sensitive organ of the human body, and vision affections often leave irreversible sequelae.

Contact lenses have been marketed in the market for more than 100 years, and technology has allowed us to produce more and more effective contact lenses. Thus, more and more people use contact lenses to stop wearing glasses with diopters or for aesthetic reasons.

The basic actions for contact lens care are: cleaning, rinsing and disinfecting the lenses. Keep contact lenses only in their support, but especially in their special maintenance solution. Any other substance destroys contact lenses or, in the worst case, you may develop a dangerous ocular infection.

It is important to change the lenses after the shelf life, because the fabric they are making starts to degrade when they come in direct contact with the air. This reduces oxygen transmissibility properties to the eye. Even if it's possible not to notice any symptoms or defects of the contact lenses, the effects of wearing them more than is recommended may damage them in the long run.


There are five types of contact lenses in the market:

Daily contact lenses 

Are disposable, which means that after first use, they must be discarded. These are the most comfortable and most hygienic due to the thin fabric they are made of. These lenses provide good clarity, as they are always new, and the risk of eye disease is almost zero.


Weekly (bi-monthly) contact lenses 

Can be worn daily for two weeks. Most of the time, the material they are made of is silicone-hydrogel and allows good corneal oxidation. Occasionally, they can also be worn during sleep.


The monthly contact lenses 

Are designed for 30 wearers and require responsible care to maintain their quality over the shelf life.


Quarterly contact lenses 

Can be used for 90 daily wears, and overnight they should be stored in a sterile container with maintenance solution, avoiding the storage of proteins on their surface.


Annual contact lenses 

Due to the fabric they are made of, they can be worn for up to 10-12 hours a day for one year. These are thicker than other types of lenses and have the smallest oxygen transmissibility.


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