The Dangers of contact lenses

Dangers Of Contact Lens 1:
Blind As A Bat

If your glasses fall off, most likely you will see it once you tilt down your head. But if you drop your contact lens, it might need some sort of miracle to find it again.

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After that, you will have to proceed on without your lens for the rest of the day.
Blinded in either one or two eyes.
And that seems to defeat the purpose of putting on contact lenses because you want clearer vision, isn’t it?

Dangers Of Contact Lens 2:
Diminished Corneal Reflex

Using contact lenses may cause a diminished corneal reflex in your eye. Corneal reflex is a protective mechanism of our eye.

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Whenever a slightest amount of pressure is applied to the cornea, our brain receives a signal to drop down the eyelids to protect our eye.
This is what causes your eyes to instinctively shut down when you are surprised by a flying object towards your eye. Like an insect fly appears out of nowhere or when someone tries to poke your eyes.
In short, your corneal reflex exists to protect your eyes from anything that may cause direct trauma to the eyes.
And by constant application of contact lenses to the eyes, you are teaching your body to ignore your natural corneal reflex.
Because of this you may dulling the eye's response to corneal reflex and this could lead to the eye being damaged because you couldn't shut your eyes fast enough when danger approached.

Dangers Of Contact Lens 3:
Dry Eyes

Contact lenses reduces amount of tears getting on our cornea. Especially the soft lenses as they absorb most of our tears to keep itself soft. The lack of tear exchange can cause dry eye syndrome which causes uncomfortable feeling such as itchiness, redness and burning sensation.

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Severe dry eyes can lead to scarring of the cornea.

Dangers Of Contact Lens 4:
Corneal Abrasion

Contact lenses can scratch your cornea and causes corneal abrasion if they are not fitted properly or when your eyes are dry.
This is especially true if you are sleeping with contact lenses in. Abrasion can also happen when the lenses trap particles (such as dust, dirt and sand) and rub against your cornea.
Cuts and abrasion create opening for bacteria and virus to seep through, leading to eye infection which can result into vision loss.
Carelessness in handling your contact lenses during extraction and insertion can also increases your chance of scratching the cornea.

Dangers Of Contact Lens 5:
Conjunctivitis

Contact lenses, especially those worn through the night, provide a moist environment that is a potential breeding ground for microorganisms such as bacteria and viruses.

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And because less oxygen reaches the cornea when you are wearing the lenses, your body is not able to fight off infection caused by bacteria or viruses effectively.
Thus contact lens wearers are at higher risk of getting eye infection such as conjunctivitis (pink eye) and stye.
The most common type of conjunctivitis which contact lens wearers get is called giant papillary conjunctivitis (GPC) due to repeated irritation from the contact lenses.

Dangers Of Contact Lens 6:
Allergic Reactions

Contact lenses may increase the likelihood of you getting allergic reactions.
The presence of a contact lens could possibly trap allergens between the eye or under the lens, allowing them to stay on the eye longer.
Thus allowing more time for the allergic reaction to kick in.
Some people might experience allergic reactions from wearing contact lenses due to the preservative in the contact lens solution.
Such situation is usually rectified by prescribing a lens solution with different preservative.

Dangers Of Contact Lens 7:
Ptosis

Ptosis is a condition also known as drooling of the eyelids where affected individuals aren't able to fully open their eyes. If you wear contact lenses, they may migrate into the lid tissues causes scarring and contraction of your eyelid tissues that result in a lid retraction.

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This is especially true for hard contact lens wearers due to repeated stretching of the lid during lens removal.
Ptosis can also be caused by a severe giant papillary conjunctivitis.

Dangers Of Contact Lens 8:
Corneal Ulcer

A corneal ulcer is an open sore in the eye's cornea, caused by bacteria, fungus, viruses or  parasite infection. If it is not treated quickly, corneal ulcer can cause permanent blindness.

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By then, probably the only way to restore vision is through corneal transplant.
The most common cause of corneal ulcer is by a bacteria that lives in water called Psuedomonas.
About 12,000 contact lens users are affected by this infection every year. If you are infected with psuedomonas, this bug can eat into your cornea and destroy your sight within 24 to 36 hours.
As your cornea is intertwined with nerves, the invasion process is extremely painful.
A common symptom is green pus and pain, discomfort and light sensitivity after only a few hours.

Jennie Hurst was blinded in one eye after a quick swim in the hotel pool with her contact lenses in. She caught a common parasite known as Acanthamoeba in between her contact lens and it penetrated her eyeball within days.

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This organism can be found almost in all water bodies such as tap water, river water, sea, soil and swimming pool.
In United Kingdom alone, 75 people are infected with acanthamoeba each year.
To reduce the chances of getting corneal ulcer, it is important to upkeep hygiene when handling your contact lenses.
Follow your eye doctor’s instructions diligently for proper cleaning and do not use water or saliva to clean or lubricate your lenses.
And always remove the contact lenses before you getting into water whether you are bathing or swimming.

Afterword

I hope that you are convinced that contact lenses are in fact dangerous.
No matter what type, contact lenses can cause serious damages to your eyes. If you do need them for aesthetic purpose, don't wear them anymore.
The risks aren't worth it.
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