What conditions does lens replacement treat?


The eye is like a camera. The lens in the camera is your natural lens inside of the eye. When you’re young, your lens is very elastic. It’s fantastic at accommodating and focusing on objects whether it’s near or distance.  With time, with age, the lens loses its elasticity. It does accommodate less and moves less, which means when you’re around the age of 40, you will suddenly need glasses to read. That is the first thing that happens. It’s the first sign of what you call, ageing of the lens when the lens is becoming a bit older and less functional. This is called presbyopia.  Presbyopia affects everyone. It’s just a matter when it appears. Some patients develop around age 40, some patients a bit younger or a bit older. Now, following that, the lens itself starts to change its colour, and it becomes a little bit like yellow colour, so it loses its clarity. At that stage, we call it lens dysfunction or lens dysfunctional syndrome. That is a lens that is not as healthy as used to be.

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Later the lens develops a kind of opacities or cloudiness – this is a cataract. We’re not talking about this stage. We’re talking about the stage before this where you can still see fairly clearly. Still, you want the convenience of life without glasses, whether that’s for reading, distance or both. With refractive lens exchange surgery, we implant a special lens which can give you all of that back.  In summary, refractive lens exchange is a treatment for various types of refractive errors. For example, if you are long-sighted, called hyperopia, or you are short-sighted, that’s called myopia. Or you have astigmatism, or if you have a mixture of some of those, then refractive lens surgery is a treatment for that. It’s the option that helps you to be less dependent on glasses.

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About the expert

Mr Samer Hamada | Consultant Ophthalmologist and Corneal Surgeon

MD, MSc, DO (hons), FRCSEd, FRCOphth I am Samer Hamada, founder and consultant ophthalmic surgeon with over 20 years’ experience in ophthalmology. I am a world-renowned specialist in cornea, cataract and refractive surgery. I’m not only a leading surgeon but also the only dual fellowship trained in corneal diseases in children from reputable institutions in the UK. At Eye Clinic London I work closely with other consultant ophthalmologists, optometrists and orthoptists to achieve the best outcomes for our patients. Our main aim is to make sure our patients get the safest and best treatments available to them. We put your safety before anything else so you can rest assured that if you choose us you will be in the best and safest hands.

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