7 side effects of contact lenses you probably don’t know


As beautiful as contact lenses may look, there are risks associated with using them.

If you do not use contact lenses properly, you will be exposed to some side effects that could even affect your long-term vision.

  • High risk of eye infection

Wearing contact lenses automatically increases the risk of eye infections. Partly that’s because you put your fingers near your eyes more often than someone who doesn’t wear contact lenses, but it’s also just because you wear them.

Keratitis, the most common infection that can result from wearing contact lenses, is caused by dust, bacteria, viruses and, in rare cases, eye parasites. It affects the cornea and causes pain, redness, blurred vision, discharge, and / or watery or itchy eyes. Keratitis can occur for several reasons: when you don’t take your contact lenses out at night, expose your lenses to all kinds of water, or don’t clean your lenses properly.

If you are allergic to the material used to make the contact lenses (plastic or silicone) or if you wear contact lenses for too long, it can cause inflammation and injury to the cornea, which can lead to scarring and permanent damage to your vision (this is also extraordinarily painful, so corneal scarring is something you want to avoid at all costs). Clean them, check they are not scratched and do not wear them too much.

Itching, irritation, red, dry eyes are the most common complaints when wearing contact lenses, and these symptoms usually indicate dry eye syndrome. You can get dry eye syndrome even if you don’t wear contact lenses, but it usually happens when you first adjust to wearing contact lenses, when your lenses dry out when you wear them, or when you wear them. you are wearing contact lenses that do not fit properly. .

As mentioned above, contact lenses can reduce the amount of tears produced by your eyes, which act as a “moisturizer”. Soft contact lenses can absorb these tears, making your eyes even more dry.

Ptosis is the technical term for droopy upper eyelids, and research shows there is a direct link between wearing soft and hard contact lenses and ptosis. However, studies show that people who wear hard contact lenses are 20 times more likely to develop ptosis than those who wear soft lenses.

Eye infections can cause corneal ulcers, and because contact lens wearers are at a higher risk for eye infections, it makes sense that they are also at a higher risk for corneal ulcers. These are painful, open sores on the outer layer of the cornea, and they are most often caused by holding the lenses on for too long.

  • Blocking the oxygen supply to the eyes

Since contact lenses sit directly on the eye and cover the entire cornea, the amount of oxygen reaching your eyes will decrease. A good supply of oxygen is absolutely essential for keeping the eyes healthy. They are not designed to be worn for very long periods of time without interruptions, and they certainly weren’t meant to be worn while you sleep. The longer the contact is in your eye, the less oxygen your eye will receive because the contact prevents air from entering.

Using contact lenses can cause a reduced corneal reflex in the eye. The corneal reflex is a protective mechanism of the eye where the brain signals the eyelids to lower to protect our eyes whenever even the slightest pressure is applied to the cornea. The corneal reflex causes us to close our eyes if something can cause direct trauma to them, such as a flying object coming towards our eyes or if someone tries to prick us.

When you constantly use contact lenses, you teach your body to ignore the natural corneal reflex. This can dull the eye’s response to the corneal reflex, which could damage the eye if you can’t close your eyes quickly enough when in danger.


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