Cornea
What is the cornea?
The cornea is the protective transparent membrane covering the front part of the eye, namely the pupil and the iris. It is about 0.5 mm thick and it is made of five layers: corneal epithelium, Bowman's layer, corneal stroma, Descemet’s membrane and corneal endothelium. The cornea is kept moist with a thin layer of tears (tear film) right on top of it.
What is the cornea for?
Besides protecting the inner part of the eye from injuries and pathogens, the cornea reflects light when it passes through towards the inner structures of the eye.
What conditions can affect the cornea?
Several corneal conditions are linked to genetic factors and to family history. If someone in your family has suffered from a corneal condition, you should go for an eye examination for early detection of any potential eye disorders.
The most common injuries and conditions of the cornea are:
- Keratitis (inflammation of the cornea)
- Fuchs' corneal endothelial dystrophy (FCED)
- Corneal dystrophies
- Corneal ulcer
- Keratoconus
- Corneal abrasion (scratched cornea) – this can cause a loss of the surface epithelial layer of the cornea and thus a loss of transparency.
- Herpes
- Shingles
How can corneal conditions be treated?
With early detection it is possible to treat corneal conditions, which will avoid the risk of having to do surgery. If some corneal diseases and dystrophies are not caught early enough, the best option could be a corneal transplant. By substituting the diseased cornea with a new one, the eyes can be restored to normal. Artificial corneas (also known as keratoprosthesis) are also an option for patients whose transplants have not been successful, or who were ineligible for a transplant in the first place.
Which doctor should I see?
You should see a specialised ophthalmologist.
Corneal abrasion: how to treat a scratched eye
By Mr Radwan Almousa
2021-10-21
Patients with a scratched eye make up around 10% of all new visits to the ophthalmic emergency care, and although it’s a minor injury, it can cause significant discomfort. Mr Radwan Almousa, one of our top consultant ophthalmologist based in London walks us through the typical treatment plan you can expect from an ophthalmologist. See more
Corneal ulcers: what are they and are they dangerous?
By Professor Parwez Hossain
2021-10-21
Corneal ulcers are painful sores that develop on the cornea (the transparent layer on the front of the eye that covers the pupil, iris and anterior chamber). Professor Parwez Hossain, a leading ophthalmologist, details what this eye condition is and why it is important to be aware of. Whilst corneal ulcers are dangerous to our vision, they are not all that uncommon either. See more
How much do you know about Keratoconus?
By Mr Vincenzo Maurino
2021-10-21
We're raising awareness for World Keratoconus Day! Expert Vincenzo Maurino explains the keratoconus signs to watch out for, and how KC can be treated. See more
LASIK vs. SMILE: which laser eye surgery is right for me?
By Mr Matthew Edwards
2021-10-16
LASIK and SMILE are common procedures to fix short-sightedness, both using a highly focused laser light to make small incicsions in your eye to reshape your corneal tissue. Mr Matthew Edwards, an ophthalmologist based in Sheffied, explains the pros and cons of each. Read on to find out which one is right for you. See more
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Mr Rakesh Jayaswal
OphthalmologyExpert in:
- Cornea
- Cataracts
- Laser eye surgery
- Lens replacement (intraocular lenses)
- ICL implants
- Corneal diseases
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Mr Radwan Almousa
OphthalmologyExpert in:
- SMILE laser eye surgery
- Refractive surgery
- Refractive surgery
- Cornea
- Cornea
- Oculoplastics
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Mr Michael Tappin
OphthalmologyExpert in:
- Cornea
- Cataracts
- Laser eye surgery
- Lens replacement (intraocular lenses)
- Corneal diseases
- Presbyopia
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Mr Sai Kolli
OphthalmologyExpert in:
- Cataract surgery
- Lens replacement (intraocular lenses)
- Cornea
- Dry eye
- Laser eye surgery
- Low vision
- See all
LaserVision
LaserVision
BMI Mount Alvernia Hospital, Harvey Road, GU1 3LX
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Top Doctors
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LaserVision
BMI Mount Alvernia Hospital, Harvey Road, GU1 3LX, GuildfordExpert in:
- Cataracts
- Corneal transplant
- ICL lens implants
- Keratoconus
- Laser eye surgery
- Lens replacement