How To Avoid Going Blind From Contact Lenses?

When a person looks the title, it sounds ironic. Isn’t it? Contact lenses are known to improve vision. But what is the relation between contact lenses and blindness? In fact, the two are not related with each other, but wearing contact lenses improperly can cause blindness. Although, there is nothing to work as proper wear and care of contact lenses will always render positive results.

There are various outcomes from contact lens wear. Sometimes contact lens wearers, lens manufacturers and practitioners contribute unsatisfactory results and it is true that contact lens is commoditized over the years. We are not purchasing something that can be compromised. Contact lens is a medical device placed over our eyes that is one of the most precious organs in our body.

Studies have shown that the risk of eye infections is more in the first six months of contact lens usage. Frequency of usage as well as hardness and softness of lens is also a factor which determines the risk of various infections. One of the most important things to consider is the lens material. 

Pseudomonas Aeruginosa – Bacterial Infection

This is one of the main concerns for people wearing contact lenses. Pseudomonas aeruginosa is a type of bacteria which causes the infection. These bacteria are able to breed in the eyes because of inadequate oxygen flow to the tissues present in eyes. The oxygen flow is disrupted because of the lens covering cornea.

In a recent survey, participants are asked to wear different types of lens. It is noticed that people who are wearing rigid glass permeable lens, the bacteria present in the cornea did not increase during the trial. After three months of trial, bacteria level started to decline in the cornea of persons wearing other types of lenses whereas the bacteria level was same in the patient’s cornea wearing different types of lenses after six months. It is observed that when the eyes get adapted to the lens, the bacteria gets eliminated completely. This is why it is necessary to be cautious when using lens for the first time, especially first six months.


Biodeposit debris can accumulate on the lenses and can cause irritation. It can even result to corneal ulcer, a severe complication which leads to blindness. 

Corneal thinning

Cornea can become thinner up to 10 percent, if the cornea is covered with contact lenses. There is a disruption in production of new cells.


It is a microorganism present in fresh water and soil. It is also found in tap water and when you rinse your eyes in a sink containing water, the amoeba can get transferred to the eyes. This can result in amoebic keratitis that can cause blindness and is painful. Common lens solution is unable to kill the amoeba. To be safe from acanthamoeba, one must avoid washing the lens in tap water. One of the best options is to use daily disposable contact lenses.

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