Could replacing the lens in your eye be the best option for you?
Have you ever wondered if there was a more permanent solution to your vision problems than constantly updating your glasses prescription? While laser eye surgery often gets the spotlight, there’s another option that might be better suited to your needs – lens replacement surgery.
Whether you’re struggling with cataracts or simply tired of being dependent on glasses, replacing your eye’s natural lens could be the answer.
We asked Consultant Ophthalmic Surgeon Professor Sunil Shah to explain the options.
What is Lens Replacement Surgery?
Think of your eye as a camera. Just as a camera has a lens to focus light onto its sensor, your eye has a natural lens that focuses light onto your retina. This lens sits inside your eye like a Smartie in its shell. During surgery, the surgeon carefully breaks open the outer ‘shell’, scoops out the inner lens, and replaces it with an artificial one. It’s rather like upgrading your camera’s lens to take better pictures.
There are actually two main types of lens replacement surgery: cataract surgery and refractive lens exchange (RLE). While the surgical procedure is essentially the same, the reasons for having each type are quite different.
Cataract Surgery: When Your Lens Goes Cloudy
Cataracts are a bit like having a frosted window in your eye – the lens becomes cloudy, making everything look misty or blurred. It’s an incredibly common condition as we age, affecting many people over 65. During cataract surgery, the cloudy lens is removed and replaced with a clear artificial one, helping restore your vision to its former clarity.
Refractive Lens Exchange: For Clearer Vision
RLE is essentially the same procedure as cataract surgery, but it’s performed before any cataracts develop, purely to correct your vision. One significant advantage of RLE is that it can treat much more extreme prescriptions than laser eye surgery.
Additionally, even if you have laser eye surgery for perfect distance vision, you’ll likely still need reading glasses at some point after age 45. RLE can potentially free you from both distance and reading glasses in one go.
So, RLE is particularly beneficial for people over 45 who want to address both distance and reading vision issues simultaneously.
RLE is good for people who:
- Are over 45 and want to correct both distance and reading vision
- Have a high prescription that might not be suitable for laser eye surgery
- Want to reduce or eliminate their dependence on glasses or contact lenses
- Want to prevent future cataract surgery (since your new artificial lens can’t develop cataracts)
Choosing Your New Lens: It’s Not One Size Fits All
When it comes to lens selection, it’s crucial to understand that one size definitely doesn’t fit all. Your perfect lens depends on various factors, including:
- Your hobbies and lifestyle
- Your eye health (conditions like dry eyes can affect which lenses are suitable)
- Your specific vision needs and preferences
Here are the main types of lenses available
Monofocal Lenses
These lenses focus at one distance – usually far distance for driving and watching television. You’ll likely still need reading glasses, but they’re a reliable choice and are what the NHS typically provides for cataract surgery.
Extended Depth of Focus (EDOF) Lenses
These lenses provide a more natural range of vision than traditional multifocal lenses, with excellent distance and intermediate vision, plus some near vision capability. A key advantage is that they typically don’t cause the night vision issues that can occur with multifocal lenses.
Multifocal Lenses
Available in various designs (bifocal, trifocal, and spiral), these lenses can help you see clearly at different distances. The latest innovation is the Galaxy spiral lens, which uses a unique spiral design to provide smoother transitions between different focal points. While very new, early results are promising for achieving glasses-free vision.
However, it’s important to note that while these lenses can dramatically reduce your dependence on glasses, none can absolutely guarantee you’ll never need them again.
Toric Lenses: The Astigmatism Specialists
If you have astigmatism (where your eye isn’t perfectly spherical), these rugby ball-shaped lenses can help correct this while also improving your general vision. They’re available for extended depth of focus lenses and multifocal lenses to match your specific needs.
The Journey to Clearer Vision
The path to lens replacement surgery typically starts with a thorough consultation. While you can be referred by your GP to an NHS hospital for cataract surgery with a monofocal lens, you might want to consider a private clinic for more lens options.
The surgery itself is usually performed under local anaesthetic, and most people can have both eyes treated on the same day. The procedure is remarkably quick, with the surgeon even being able to use advanced robotic-assisted laser technology to work in a space just 3mm deep!
Recovery and Results
Recovery is typically quick and straightforward. Most people notice clearer vision within a day, though there might be some variability in your vision during the first week. You’ll need to:
- Take about a week off driving (or until you meet the legal vision requirements)
- Use eye drops for about a month
- Take a short time off work (usually less than a week, depending on your job)
- Avoid swimming or heavy lifting for a few weeks
The Financial Side
If you have cataracts, surgery is available on the NHS, though you’ll typically receive monofocal lenses. If you want multifocal lenses, you’ll have to seek a private clinic. Many private clinics offer payment plans, and private insurance policies should contribute to the cost of cataract surgery but not RLE.
Making Your Decision
When considering lens replacement surgery, take time to:
- Discuss your specific needs with a specialist
- Understand the different lens options available
- Consider your lifestyle and visual requirements
- Choose a clinic that offers a wide range of lenses
- Make sure you research your surgeon and meet them prior to the surgery day
- Have realistic expectations about the results
Remember, the key to success is finding the right lens for your individual needs. Look for a specialist clinic that offers a full range of options rather than a one-size-fits-all approach.
Whether you choose to proceed with surgery or not, a consultation will help you understand what’s possible for your vision and ensure you have the best treatment to allow you to live life to the fullest.
About the author
Professor Sunil Shah is a Consultant Ophthalmic Surgeon at the private clinic Midland Eye, founded by four specialist ophthalmic surgeons to provide patients with a comprehensive and easily accessible service for the diagnosis and treatment of all eye conditions.
Image: Getty Images on Unsplash