Clear Lens Replacement (CLR)

Clear Lens Replacement (CLR) involves replacing the natural lens of the eye with an artificial intra-ocular lens. CLR can be an option for those with high prescriptions not suitable for laser eye surgery, or for older people, perhaps over the age of 60, who want a stable and permanent treatment that removes the risk of cataracts developing in later life. The visual recovery after clear lens replacement is often rapid and astigmatism can be treated at the same time.

There are a few different options that can be considered.

1. Monofocal Lenses - These lenses give the best clarity of vision but they can only have one focus. If you choose to focus your eyes for distance vision you will still need to wear spectacles for close work or visa versa.

2. Monovision.  Here we utilize monofocal lenses (as above) in each eye, but the dominant eye is usually focussed for distance vision and the non dominant eye focused for closer work. This system often works very when patients have previously worn a similar visual correction with contact lenses or when both eyes have never worked fully together (Squints). Monovision however remains a rarely chosen option.

3. Multifocal lenses - These lenses have either a double or triple focussing system built into them, so both eyes focus similarly, and the optics of the implanted lens has the ability to focus both distance and near vision as required. Often patients have to accept a very small reduction in absolute clarity with these lenses in order to gain the multiple focus functionality that they offer. They are a very popular and successful way of dealing with both distance and close visual needs whilst maintaining a binocular balance between the two eyes. Fully multifocal lenses offer the best hope of removing the need for spectacles completely.

The main disadvantage of multifocal lenses is that they can cause some degree of night time visual symptoms such as halo's or glare. The vast majority of patients do adapt to this over the first couple of months, but for an occasional patient, it remains a frustration.

4. Extended Depth Of Focus lenses (EDOF) - These lenses offer distance vision with some degree of near visual focus but are expected to reduce the risk of night time visual symptoms that are associated with a full multifocal lens. Extended depth of focus lenses may offer reasonable near visual acuity in good light but we would still expect you to require spectacles for demanding or intensive close work tasks.

Please also be aware that occasionally Laser Eye Surgey enhancement is required to fine tune the refractive results of the initial lens surgery. Sheffield Vision Centre are able to offer free laser eye surgery enhancements if this is deemed necessary (and safe), giving you the best chance of an outstanding result and total satisfaction.

If you're interested in learning more about clear lens replacement please call 0114 2711564 to book a complimentary consultation.