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All Posts Tagged: cornea

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Ocular Rosacea; What Is It?

 

Many people have heard of rosacea that affects the skin, usually the face and chest area, which causes redness and small bumps, but did you know rosacea can affect the eyes too?

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What Is Lattice Dystrophy?

 
Lattice dystrophy is a disease of the stroma layer of the cornea. The stroma is the third layer of the cornea and lattice dystrophy is a build-up of abnormal protein fibres, also called amyloid deposits, through the anterior and middle stroma. This disease can arise at any time, but tends to start in children aged between two and seven.

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Corneal Infections

 

A corneal infection can arise from various situations. They can occur following damage to the cornea if a foreign object has touched the eye, this could be from accidentally poking your eye with something or getting grit or even an eyelash in the eye. Corneal infections can also start from contact lens wear if the contact lens has bacteria on it, this could be from touching your lenses with dirty hands, this bacterium then gets transferred to the cornea.

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Mr Hamada at UK Cross-linking Consortium Meeting

24th May 2016 – Mr Hamada has been invited to this meeting to speak about Epithelium off cross-linking: review of clinical studies and long-term follow-up data. This meeting is the first of its kind in the UK and will cover the most important issues relating to cross-linking. It will be attended by most cornea surgeons who have an interest in corneal cross linking (CXL). CXL has been approved by NICE as the treatment of choice to stop or slow keratoconus progression. Children and young patients are the ones who will benefit the most because keratoconus at a younger age is normally aggressive and fastest progressive. Keratoconus is found in 1/300 in Asian and 1/2000 in Caucasians.

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What is a Corneal Transplant?

A corneal transplant is when a diseased or injured cornea is replaced with a new one from a donor. There are various types of corneal transplant.

 

The cornea can be replaced as a whole, this is called Penetrating Keratoplasty (PK). This is where all the layers of the cornea are replaced with a donor cornea.

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The Cornea and Injury

Generally, the cornea manages well with a minor injury. The cornea is extremely sensitive and if it scratched then healthy cells move over very quickly to cover the damage before an infection takes place and before vision is affected. However, if the injury is deep, the healing course can take much longer and can cause pain, tearing, blurry vision and redness amongst other side effects. It is also very important to see an eye doctor if you have a deeper corneal injury as it can cause scarring, impair vision and haze. If this happens then a corneal transplant might be necessary.

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What is the cornea and what are its functions?

The cornea is the clear window of the eye. It is a dome-shaped clear surface that covers the front part of the eye. The cornea is a vastly structured group of collagen layers and cells and has no blood vessels to sustain and defend it against infection. Tears instead, nourish and protect the cornea.

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