Have you been wondering why you keep getting sore eyes or worse yet, eye infections after using you contact lenses, even after you follow the exact guidelines written on the back of the box? You might have even paid quite a few visits to your ophthalmologist to try to get the problem sorted out, but with no success.
Well, a new research conducted on a small scale, concluded that the reason why people who wear contact lenses tend to have more eye infection episodes than the regular population, has to do with the unhygienic habit of putting your fingers in your eyes to put the lens into place and then putting your fingers back in, at the end of the day, to take the lenses out.
Your body has millions of microorganisms living in and on it and in each section of your body, various types of bacteria are either encouraged or discouraged from growing. Your eyes are not an exception to that rule.
Although the tears that the lachrymal gland produces are bactericide, some harmless microorganisms do survive. While the microbiota of the eyes have not been truly studied, it is supposed that most of them are bacteria, fungi and archaea, which do not cause harm.
However, the microorganisms that live on a person`s eyelid are completely different than the ones living on the surface of the eye, therefore it makes complete sense to assume that no matter how thoroughly we wash our hand, the fingers still have to touch the eyelid and then the eye, thus infecting the eye with new bacteria.
Needless to say, the bacteria found on eyelids are a lot more aggressive than the ones found on the surface of the eye.
The study which confirmed this assumption, was conducted on 11 persons who did not wear contact lenses and on 9 persons who did use them. To obtain the results, researchers swabbed the eye of each participant and tried to establish what bacteria strains were found on each of their eyeballs.
The results confirmed that the persons who wore contact lenses had a microbiota similar to the one found on the eyelids of the persons who did not wear contact lenses. For each person who participate in the study, researchers concluded that 5,000 strains of bacteria exist on the eye surface and 2,000 strains of bacteria live on every person`s lower eyelid.
This means that the number of bacteria is basically unchanged, however what is different is which bacteria strain is selected to thrive into a certain type of environment.
Eye infections can easily cause complications especially if they are localized in the cornea and thus, it is strictly forbidden to wear contact lenses while swimming, because infecting your contact lens with a dangerous microorganism can even cause blindness in some cases.
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