January 9, 2019

Acanthamoeba keratitis (AK)

Acanthamoeba keratitis is a rare but serious eye infection of the cornea (clear ‘window’ at the front of the eye) that is painful and becomes inflamed and sight-threatening.

The infection is caused by a microscopic organism called acanthamoeba, which is common in nature and is usually found in lakes, oceans, rivers and other bodies of water such as tap water, swimming pools, hot tubs, soil and air.

Information on Acanthamoeba keratitis


In the UK, AK is mostly common in people who wear contact lenses, but anyone with a corneal injury is susceptible to developing the infection. About 1 in 30,000 contact lens wearers become infected.

Using tap water to clean or store contact lenses or having poor contact lens hygiene increases the risk of infection. Examples of poor lens hygiene are not using disinfection solutions properly, reusing the solution in the contact lens case, failing to empty and dry the contact lens case after use and storing lenses in water overnight.

Wearing contact lenses when swimming or taking a shower also increases risk. So, does putting lenses in with wet hands from tap water.


Acanthamoeba keratitis is very painful for most people but it’s possible to have no pain at all. Other symptoms include red eyes that feel irritated or like they have something in them. Some people will get blurred or poor vision, while others may become sensitive to light and find it painful or uncomfortable.

If you ever experience any of these types of symptoms, you need to make sure to contact your eye doctor. Remember that acanthamoeba keratitis is sometimes difficult for your eye doctor to diagnose at first, because its symptoms are similar to pink eye symptoms and those of other eye infections.

Diagnosis of keratitis often occurs once it is determined that the condition is resistant to antibiotics used to manage other infections. A "ring-like" ulceration of your corneal tissue may also occur.

How is AK diagnosed?

An ophthalmologist will use a standard slit lamp microscope to look for signs of inflammation in your cornea, including specific clinical signs characteristic of AK. This is can be followed by a corneal scrape and culture, or a swab of the cornea to check for Acanthamoeba DNA using a test called “PCR”. Results for both these tests take a few days to come through. In some cases, AK can be detected using a confocal microscope, a powerful scanner that can see Acanthamoeba cysts within the various layers of the cornea. The ophthalmologist will use these tests together with other clinical signs and symptoms in order to decide on the appropriate treatment plan


Acanthamoeba keratitis needs immediate attention. Treatment is usually with antiseptic eye drops. It can be hard to treat and may also need antibiotics or steroids as well as painkillers.

The most serious infections will mean the need for a corneal transplant. This involves surgery to remove the damaged cornea and replace it with a healthy one from a suitable donor. If needed, penetrating keratoplasty should only be used for cases of visually significant corneal scarring in quiet eyes.  If there are still signs of active infection or even if there are cysts lingering in the cornea, then infection may recur in the graft.  


Good contact lens hygiene is imperative. This means, clean and dry your hands well before touching your lenses. Make sure you do not sleep with contacts lenses.

Follow the advice from your optician and the manufacturer’s instructions for your lenses. Consider options such as daily disposable lenses instead of ones that need to be cleaned and stored to use again. It is also important to clean, rinse and air-dry your contact lens case straight after removing your lenses from the case. Throw away the old solution and rub the inside wells of the case with clean fingers for a few seconds. Then fill the case with multipurpose solution or sterile saline and store the case upside down with the caps off.

Don’t wear contact lenses when you take a shower or indulge in activities where bodies are involved when you are wearing contact lenses.


This is just informative piece, please seek medical attention if you feel you have any of the symptoms.

I really like your writing style, good info, regards for putting up

Allso visit my web blog; best anti aging face creams aand serums [Lizzie]

Fastidious replies in return of this query with genuine
arguments and telling all concerning that.

These are genuinely fantastic ideas in about blogging.
You have touched some nice points here. Any way keep up wrinting.

Stop by my homepage ... paradis fiscal

you are truly a excellent webmaster. The sife loading velocity is amazing.
It sort of feels that you are doing any distinctive trick. In addition, The contents are masterpiece.

you have done a magnificent task in this matter!

Here is my homepage ... bettymills review

Do you mind if I quote a few of your posts as long as I provide credit and sources back to your webpage?

My blog is in the very same niche as yours and my users would certainly benefit from some of the information you present here.
Please let me know if this okay with you. Thank you!

Feel free tto visit my web page: best kind of mattress (Allen)

I would like to express my appreciation for your
generosity giving support to those individuals that require
guidance oon your area of interest. Your real commitment to passing
thhe solution alonng became extremely significant and has
continuously allowed ladies like me to achieve their ambitions.
Your amazing informative recommendations implies a great del
a person like me and far more to my fellow workers.

With thanks; from everyone of us.

My website:

If some one desires to be updated with most recent technologies afterward he must
be pay a quick visit this website and be up to date everyday.

my web site; joomla hosting (Gabrielle)

We absolutely love your blog and find most of your post's to be what precisely
I'm looking for. can you offer guest writers to wrtite content for you
personally? I wouldn't mind producing a post or elaborating on some
of the subjects you write about here. Again, awesome blog!

Take a look at my web site :: profit Forex signals pricing

I must thank you for the efforts you have put in penning this blog.
I am hoping to see the same high-grade blog posts by you in the future as well.
In truth, your creative writing abilities has encouraged
me tto get my own blog now ;)

Also visit my website dental pro 7 order (

Hi there! Someone iin my Facewbook group shared this website with
us so I came to check it out. I'm definitely enjoing the information. I'm book-marking and will
bee tweeting this to my followers! Fantastic blog and superb style and design.

My webpage; best forex trzding software for mac - Brodie -

I used to be suggested this blog by my cousin. I'm no longer sure whether this submit is
written by him as nobody else know such detailed approximately my difficulty.
You are incredible! Thanks!

my homepage - installment loans for bad credit (

Hey there I am so glad I found your website, I really found you by error, while I was researching
on Bing for something else, Nonetheless I am here now and would just like too say
kudos for a incredible poset and a all round enjoyable blog (Ialso love the theme/design), I don’t have time to look over it all at the minute but I have book-marked itt
and also included your RSS feeds, so when I have time
I will be back to read more, Please do keep up the great b.

my web site; microcap millionaires equitymaster

nasturally like your web site however you have to
test the spelling on several of your posts. Many of them are rife with
spelling problems and I find itt very bothersome to inform thee reality however I will certainly come back again.

My blog post; kala health muscle and joint cream

It iis in reality a nice and helpful piece of information. I am satisfied
that you simply shared this helpful info with us.
Please stay us up to date like this. Thanks for sharing.

My blog - signhs tuat a woman is falling for you - know these and get
her to date you; Ara,

Thanks for one's marvelous posting! I definitely enjoyed reading it, you can be a great author.I will be sure to bookmark your blog and will eventually come back someday.
I want to encourage continue your great writing, have a
nice evening!

Take a look at my homepage monthly installment loans for bad credit

I'm noot sure where you'regetting your information, buut great topic.
I needs to spend some time learning more or understanding more.
Thanks for fantastic info I was looking for
this info for my mission.

Also visit my web-site does perfect biotics Really work

Hello there! I know this is kinda off topic however I'd figured I'd ask.

Would you be interested in exchanging links or maybe
guest authoring a blog post or vice-versa? My site goes
over a lot of the same subjects as yours and I believe we could greatly benefit from each
other. If you might be interested feel free
to shoot me an email. I look forward to hearing from you!
Superb blog by the way!

Look at my blog; installment Loans for bad credit - -

Hello there! I know this is kinda off topic however I'd figured I'd ask.

Would you be interested in exchanging links or maybe
guest authoring a blog post or vice-versa? My site goes
over a lot of the same subjects as yours and I believe we could greatly benefit from each
other. If you might be interested feel free
to shoot me an email. I look forward to hearing from you!
Superb blog by the way!

Look at my blog; installment Loans for bad credit - -

I haven't checked in here for a while as I thought it was getting boring, but the last few posts arre good
quality so I guess I wiull add you back to my daily bloglist.
You deserve it friend :)

Visit my webpabe :: feel sexually (Tomas)

Dead indited subject material, Really enjoyed reading.

Here is my homepage - business travel in a mobile commaznd
center - Zella -

Hi! I understand this is kind of off-topic however
I had to ask. Does running a well-established website like yours take a lot of work?
I'm completely new to writing a blog but I do write in my journal every
day. I'd like to start a blog so I can easily
share my personal experience and thoughts online.

Please let me know if you have any ideas or tips for brand new aspiring bloggers.

Also visit my web-site; vendre à netanya

Hello to all, the contents existing at this web page are truly remarkable
for people knowledge, well, keep up the good work fellows.

Here is my web site; Installment loans For bad Credit (

Because the admin of this web page iis working, no doubt very raapidly it will be renowned, due
to its quality contents.

My website - house sitting rates denver co, Tanya,

Hiya, I'm really glad I've found this info. Nowadays bloggers publish only about gossips and web and
tis is actuallpy frustrating. A good webb
site with exciting content, that's what I need. Thanks for keeping
this site, I'll be visiting it. Do you do newsletters?
Can noot find it.

Here is my homepage; kala hdalth promo code []

A motivating discussion is definitely worth comment. I believe that you should write more about this topic, it may
not be a taboo matter but usually folks don't discuss these subjects.
To the next! Best wishes!!

Check out my web-site :: installment loans for poor credit

An impressive share! I've just forwarded this onto a co-worker who
was doing a little homework on this. And he actually bought me dinner simply because I discovered
it for him... lol. So allow me to reword this....

Thanks for the meal!! But yeah, thanx for spending the time
to talk about this topic here on your internet site.

Hello! I could have sworn I've visited this
web site before but after looking at some of the posts I realized it's new to me.
Nonetheless, I'm certainly pleased I stumbled upon it and
I'll be bookmarking it and checking back often!

my web page - maison ramat poleg netanya

Thanks a bunch for sharing this with all of us you really recognise what
you're speaking approximately! Bookmarked. Please additionally discuss with my
website =). We will have a hyperlink alternate arrangement among

Paragraph writing is also a fun, if you be acquainted with after that you can write if not
it is complex to write.

Greate pieces. Keep posting suych kind of info on your
site. Im really impressed by your site.[X-N-E-W-L-I-N-S-P-I-N-X]Hey there, You have performed an incredible
job. I will definitely digg it and in my
opinion suggest to my friends. I'm sure they will be benefited from
this site.

My web blog; selective forex trading pdf (Kristopher)

Add new comment

Restricted HTML

  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type> <li> <dl> <dt> <dd> <h2 id> <h3 id> <h4 id> <h5 id> <h6 id>
  • Lines and paragraphs break automatically.
  • Web page addresses and email addresses turn into links automatically.