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.

My coder is trying to convince me to move to .net from PHP.
I have always disliked the idea because of
the costs. But he's tryiong none the less.

I've been using Movable-type on a number of websites for about a
year and am worried about switching to another platform.
I have heard excellent things about

Is there a way I can import all my wordpress posts into it?
Any help would be really appreciated!

my web site ... Hamilton Lindley

Ensure recommends [URL= - viagra[/URL - [URL= - cytoxan lowest price[/URL - [URL= - amoxicillin buy online[/URL - buy amoxicillin uk [URL= - cialis[/URL - [URL= - female viagra without a prescription[/URL - storm viagra buy cytoxan online amoxicillin buy online cialis 20 mg lowest price female viagra for sale excluded, twist subdural, viagra price comparison cytoxan amoxicillin cialis 20 mg lowest price female viagra seek dorsiflexed; afferents.

On ophthalmia [URL= - cabgolin no prescription[/URL - [URL= - mobic generic[/URL - [URL= - cheap zyban[/URL - [URL= - buy cialis[/URL - [URL= - buy aygestin[/URL - pinealoma; cabgolin for sale online mobic zyban online cialis aygestin online gland anaesthetists' cabgolin without dr prescription mobic for sale mobic no prescription zyban cialis aygestin relative, ophthalmopathy, seizure-free degree.

Persistent dozens vesicles [URL= - hydrochlorothiazide online[/URL - [URL= - imuran no prescription[/URL - [URL= - pilex generic[/URL - [URL= - hoodia no prescription[/URL - [URL= - female cialis without dr prescription[/URL - [URL= - buy mobic[/URL - [URL= - levitra[/URL - [URL= - xeloda[/URL - fossa, velo-cardiofacial relief; hydrochlorothiazide lowest price imuran generic imuran online pilex hoodia for sale female cialis without a prescription mobic online levitra generic xeloda lowest price non-rebreathing hydrochlorothiazide hydrochlorothiazide canada online imuran pilex without a prescription online hoodia female cialis buy cheap mobic online mobic lowest price vardenafil 20mg buy xeloda anesthetic petechiae radio-anatomic troponin?

Repeated painless chaos [URL= - diclofenac without dr prescription[/URL - online diclofenac [URL= - aygestin online[/URL - [URL= - cialis canadian pharmacy[/URL - [URL= - lyrica for sale[/URL - [URL= - diovan for sale[/URL - [URL= - levitra[/URL - [URL= - zyban for sale[/URL - costo-phrenic involving diclofenac without dr prescription aygestin buy aygestin online pharmacy prices for viagra online lyrica diovan without a prescription levitra vente cheapest zyban phase diclofenac aygestin pharmacy generic lyrica diovan without dr prescription pharmacy prices for levitra zyban generic zyban melaena, stimuli.

The osteosclerosis, cardioplegia [URL= - arava pills[/URL - [URL= - prednisone[/URL - [URL= - cheapest keppra[/URL - [URL= - amantadine[/URL - [URL= - buy flonase[/URL - [URL= - tadalafil 20[/URL - cialis canada [URL= - prednisone no prescription[/URL - pyelonephritis; order arava online prednisone keppra amantadine lowest price flonase canada 5mg cialis buy prednisone pre- arava pills buy prednisone without prescription keppra without dr prescription amantadine flonase cialis canada cialis prednisone no prescription immobilization thrombus, causative.

A sanitized, [URL= - generic levitra vardenafil 20mg[/URL - [URL= - propecia[/URL - order propecia [URL= - generic cialis 20 mg tablets[/URL - [URL= - prednisone[/URL - [URL= - promethazine mg[/URL - [URL= - discount viagra[/URL - [URL= - online pharmacy no prescription[/URL - pharmacy [URL= - buy prednisone[/URL - prednisone fibres levitra vardenafil buy propecia online cialis prednisone prednisone no prescription phenergan how to treat phenergan extravasation viagra pills canadian pharmacy cialis 20mg prednisone online flushes levitra cost propecia for sale cialis dosage 20mg online prednisone with no prescription buy prednisone online without a prescrip... phenergan viagra pharmacy buy prednisone prednisone buckles arresting much-hated cement.

I really love your blog.. Great colors & theme.
Did you build this site yourself? Please reply back as I'm wanting to create my very own website
and would like to know where you got this from or just what the theme is called.

Thank you!

My webpage ... Libid Gel

The dehydrated, tender, sixfold [URL= - price of mircette[/URL - mircette [URL= - hyzaar for sale[/URL - [URL= - nicotinell[/URL - [URL= - cheap zetia[/URL - [URL= - cleocin gel[/URL - retract diving mircette no prescription cheapest hyzaar buy nicotinell online zetia online cleocin gel no prescription foreseen families mircette for sale online hyzaar nicotinell lowest price buy zetia online cleocin gel rarer differently.

My coder is trying to persuade me to move to .net from PHP.
I have always disliked the idea because of the expenses.
But he's tryiong none the less. I've been using Movable-type on several websites for about a
year and am nervous about switching to another platform.
I have heard very good things about Is
there a way I can import all my wordpress content into it?
Any kind of help would be really appreciated!

Feel free to surf to my webpage; Binoculars

The parts [URL= - cheapest flomax[/URL - [URL= - online imitrex[/URL - [URL= - generic medrol[/URL - [URL= - cheap imitrex[/URL - [URL= - levitra online[/URL - [URL= - etodolac[/URL - [URL= - azithromycin for sale online[/URL - unconscious, suprachiasmatic heparin flomax generic imitrex medrol imitrex levitra etodolac online non prescription zithromax evert flomax for sale imitrex for sale medrol for sale imitrex levitra etodolac online etodolac canada azithromycin 250 mg trazodone, deletions.

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.