Acanthamoeba is actually a protozoan, not a bacteria. But yes contact lenses dramatically increase your chance of getting a corneal ulcer, whether by amoeba, fungi or bacteria. The issue is repeated microscopic trauma to the corneal epithelium along with formation of a biofilm on the contact lens. After contact lenses, the next most common cause of corneal ulcers is trauma, e.g. a corneal abrasion. There are very few bacteria that can penetrate an intact corneal epithelium, but that is possible too.So this bacteria only gets in your eye if you are wearing lenses? Seems kinda weird to me
Ron Burgandy is absolutely on the money here. The absolute risks are not very high, e.g. somewhere between 1 in 10000 to 20000 contact lenses will develop a serious vision threatening complication every year. Abusing contact lenses vastly increases your chance of being that one. And yes, the outcomes can be devastating.kidsan wrote: I therefore like to take a broader spectrum of opinions and it is interesting to see how many people on this thread (and a similar one on another forum) who have been kiting for many years and have not had problems.
That said, the risk of permanent damage is a real one and maybe it is advisable, in freshwater lakes particularly, to take more precautions.
you're an eye surgeon so you should know that there are less than 200 cases of acanthamoeba keratitis per year. It is EXTREMELY rare.ron burgundy wrote:Your optician is referring to a condition called acanthamoeba keratitis. Swimming in freshwater lakes while wearing contact lenses places you at risk for this infection. Acanthamoeba infections are extremely difficult to treat and often result in permanent corneal scarring and vision loss. As an eye surgeon I have seen the outcomes of this infection and they are unfortunate to say the least.
you're an eye surgeon so you should know that there are less than 200 cases of acanthamoeba keratitis per year. It is EXTREMELY rare.
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