Lens Replacement Surgery FAQs
Blue Fin Vision® consultants answer the most common questions about private lens replacement surgery. From suitability to recovery, glasses freedom to costs, find reassurance and practical guidance to help you make an informed decision.
What is lens replacement surgery?
Lens replacement surgery, also known as refractive lens exchange (RLE), involves removing the eye’s natural lens and replacing it with an artificial intraocular lens (IOL). The procedure is virtually identical to cataract surgery and is one of the safest, most commonly performed surgical procedures worldwide. It corrects short-sightedness, long-sightedness, astigmatism and presbyopia, reducing or eliminating the need for glasses or contact lenses.
Am I a candidate for lens replacement surgery?
Lens replacement surgery is typically recommended for patients over 45, particularly those experiencing presbyopia (age-related reading vision decline). It is often the preferred option when laser eye surgery is not suitable due to high prescriptions, thin corneas or early signs of cataract. Your consultant performs a comprehensive eye examination to assess your candidacy and determine the most suitable lens type for your needs.
What types of lenses are used in lens replacement surgery?
Several intraocular lens options are available depending on your visual requirements – including premium lenses not available on the NHS. Monofocal lenses provide clear vision at one distance, either near, intermediate or far. Multifocal and trifocal lenses offer vision at multiple distances, reducing dependence on glasses for everyday tasks. Extended depth of focus (EDOF) lenses provide a smooth transition between distances with fewer issues from glare and haloes. Toric lenses correct astigmatism and can be combined with multifocal or EDOF designs.
How long does lens replacement surgery take?
The procedure usually takes between 5 and 10 minutes per eye. You will be monitored for a short period afterwards before being discharged the same day. The entire visit, including preparation and recovery time, typically lasts a few hours.
Is lens replacement surgery painful?
The procedure is not painful. Anaesthetising eye drops numb the eye, and a mild sedative helps you feel relaxed throughout. Most patients experience only minor discomfort or temporary changes in vision after surgery, which usually subside within a few days.
What should I expect during lens replacement recovery?
Recovery after lens replacement surgery is typically straightforward. You may experience minor discomfort or temporary vision changes in the first few days. Most patients can resume normal activities within a week after surgery. Detailed aftercare instructions, including the use of eye drops, are provided to support optimal healing. Driving is usually possible once your vision meets the DVLA standard, often within a few days to a week.
Will I still need glasses after lens replacement surgery?
Your need for glasses depends on the lens type chosen. Multifocal and trifocal lenses significantly reduce dependence on glasses for most daily activities. Monofocal lenses correct vision at one distance, so reading glasses may still be needed for close work. Your consultant discusses realistic expectations for your chosen lens during consultation.
Will lens replacement surgery prevent future cataracts?
Yes. Once the natural lens is replaced with an artificial IOL, cataracts cannot develop because they only form on the natural lens. This is a significant long-term benefit, eliminating the need for cataract surgery later in life.
What is the difference between lens replacement surgery and LASIK?
LASIK reshapes the cornea using a laser, while lens replacement surgery removes and replaces the natural lens inside the eye. LASIK is typically suited to younger patients with lower prescriptions who want to preserve their natural lens. Lens replacement is generally preferable for patients over 45, those with higher prescriptions, early cataracts or presbyopia. Lens replacement also permanently eliminates the risk of future cataracts.
How long do intraocular lenses last after lens replacement surgery?
Intraocular lenses are designed to remain in the eye for life and do not need replacing. The synthetic lens implant stays stable and continues to provide clear vision indefinitely, unless other unrelated eye conditions develop.
What if my vision does not reach the target prescription after lens replacement surgery?
In some cases, final vision may differ slightly from the target prescription due to individual healing responses or refractive surprises. If significant residual refractive error remains, enhancement options are available. These may include laser eye surgery to fine-tune the outcome or, in rare cases, exchanging the intraocular lens for a different power. Your consultant monitors your progress at follow-up appointments and discusses the most appropriate solution if further correction is needed.
