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A refractive error is a problem with the eye’s ability to focus light accurately on the retina resulting in blurred vision
If you’d like to know the ins and outs of refractive errors we have all the information you need below
Refractive errors in incidence / prevalence
A refractive error is a problem with the eye’s ability to focus light accurately on the retina due to the shape of the eye.
Rates vary between regions of the world with about 25% of Europeans and 80% of Asians affected.
Refractive error types
The most common types of refractive error are:
- near-sightedness (myopia)
- far-sightedness (hypermetropia)
- Astigmatism
- Presbyopia (affects most people over the age of 45)
Refractive errors diagnosis and examination process
The diagnosis of a refractive error is usually confirmed by your optometrist during an eye examination using a number of lenses of different optical powers.
Refractive errors treatments
It’s possible to treat refractive errors with glasses and contact lenses; however, the inconveniences that come with these visual aids make vision correction surgery an attractive alternative.
Laser eye surgery or lens replacement can correct your refractive error and remove your dependency on glasses and contact lenses altogether.
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My answers to the most frequently asked questions about lens replacement
Learn everything you want to know about lens replacement surgery so you can feel comfortable booking an appointment
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What might happen if I delay or don’t have lens replacement?
Have you been putting off having lens replacement surgery? Discover what will happen if you let this opportunity pass you by...
Before and after lens replacement surgery: Your questions answered
Do you want to know how you'll really feel after lens replacement surgery? Dan Nguyen reveals all in this video...
Links to authoritative resources about lens replacement
Follow the links below for more information on lens replacement

Mr Dan Nguyen
MBChB MBA FRCOphth FRANZCO
Consultant Eye Surgeon
Hello, I’m Dan Nguyen!
I‘m your guide to better vision. In times when long waiting lists and unclear options are the norm, it’s easy to feel stuck and worried about your eye health. Don’t let that hold you back. I’m here to show you that you can skip the endless queues and make real progress. Remember, you’re unique, not just another name on a list. Every patient I see receives top-notch care, tailored to their specific needs and lifestyle. Once you’ve had your treatment, you’ll be able to embrace a life that’s vivid, colourful, and just the way you like it. So what are you waiting for? Stop waiting and start living!