Do you need an alternative to Laser Eye Surgery?
If you’ve looked into laser eye surgery and been told it isn’t right for you, it’s natural to wonder what your other options are. Lens replacement surgery is often raised as an alternative, but the two procedures work quite differently, and understanding that difference matters when weighing up lens replacement vs laser eye surgery for your own eyes. This is general information only, and your consultant will always recommend the option most suitable for you individually, based on a proper assessment rather than a general comparison like this one.
What laser eye surgery involves
Laser eye surgery, including LASIK and PRK, works by reshaping the cornea, the clear front surface of the eye, to correct how light is focused onto the retina. It’s a well-established, widely used approach, but it depends on having enough healthy corneal tissue to work with, and on your prescription falling within a range the cornea can safely be reshaped to correct. Our consultant ophthalmic surgeons assess this carefully as part of any consultation.
What lens replacement surgery involves
Lens replacement surgery, also known as refractive lens exchange, works differently. Rather than reshaping the cornea, it involves removing the eye’s natural lens and replacing it with a custom intraocular lens, or IOL. At Centre for Sight, this procedure is laser assisted in every case, at no additional cost, using a small incision of around 1.8mm to open the lens capsule before the natural lens is removed and the new lens implanted.
Lens replacement can correct short sight, long sight and presbyopia, the age related loss of near vision, and in doing so can also pre-emptively address the early stages of cataracts. You can read more about the procedure itself and how it’s carried out.
Why lens replacement might be considered instead
Lens replacement surgery is typically considered for people who don’t qualify for laser eye surgery, often because their prescription is too high, their cornea is an unusual shape, or they’re over the age of around 55, when the eye’s natural lens has already begun to stiffen with age regardless of any surgery. Because it doesn’t rely on reshaping existing corneal tissue, lens replacement can correct a wider range of prescriptions than laser eye surgery is able to, which is part of why it’s often described as an option for people laser surgery simply can’t help.
Key differences between the two
The most important distinction is what each procedure actually changes. Laser eye surgery works with your existing natural lens and simply reshapes the cornea in front of it. Lens replacement removes and replaces the lens itself, which means it also addresses presbyopia in a way that standard laser eye surgery generally cannot. It’s also, in effect, a permanent change, since a replaced lens cannot later develop a cataract in the way a natural lens can.
The assessment process
Because lens replacement is a more involved procedure than laser eye surgery, suitability is assessed carefully. At Centre for Sight, this includes a series of detailed investigations to properly understand your eyes before we make any recommendation, rather than assuming one procedure will automatically suit you simply because another doesn’t.
You can find a helpful independent overview in the Royal College of Ophthalmologists’ patient information on refractive lens exchange, which sets out the procedure, its risks and how it compares with laser options in more general terms.
Risks and considerations
As with any eye surgery, lens replacement carries risks, and these differ somewhat from those associated with laser eye surgery, since it involves entering the eye itself rather than working on the corneal surface. One of our consultants will talk through the specific risks relevant to your eyes, your prescription and your general eye health as part of your assessment, rather than this being something to weigh up from general information alone.
Which option might suit you
There’s no single answer that applies to everyone. If you’re within the treatable range for laser eye surgery and have healthy corneal tissue, that may remain the simpler option. If your prescription is higher, your cornea isn’t suitable, or you’re already noticing the effects of presbyopia, lens replacement may be worth discussing further. A proper consultation, rather than research alone, is really the only way to know which applies to you.
Getting started with Centre for Sight
Our medical director, Mr Sheraz Daya, has particular expertise in refractive lens replacement, alongside his wider work in cornea and cataract surgery. If you’d like to understand whether lens replacement or laser eye surgery would suit you better, the best next step is a full consultation with our team. You can get in touch with us at one of our London, Surrey or Sussex centres.
