Your Choice of Intraocular Lens (IOL)

There are a number of different intraocular lenses (IOLs) that can be implanted during cataract surgery depending on your vision requirements, and Mr Zaid Shalchi will discuss them in full during your consultation.

Your Choice of Intraocular Lens (IOL)

There are a number of different intraocular lenses (IOLs) that can be implanted during cataract surgery depending on your vision requirements, and Mr Zaid Shalchi will discuss them in full during your consultation.

Monofocal IOLs

The monofocal or standard IOL is the most commonly implanted lens and if you’re undergoing cataract surgery on the NHS, you will usually be offered this option.

A monofocal lens will only offer one fixed focus, whether that’s far, intermediate or near, although it’s usually used to achieve good distance vision. You will then likely need to wear glasses for reading or close work.

Multifocal IOLs

Multifocal IOLs are a more recent development in lens replacement and are specially designed to achieve good near, intermediate or distance vision all in one. They use different optical strengths across different areas of the lens and designs vary from bifocal lens similar to glasses to ones with concentric circles of different focus.

These can be a good option if you suffer from presbyopia prior to the development of cataracts and wish to reduce your dependence on glasses or contact lenses.

However, they can cause some minor night vision issues and aren’t suitable for all patients. They do not correct astigmatism.

Accommodative IOLs

These artificial lenses mimic the movement of the natural lens and therefore can provide better vision at different distances. When you look at something further away, the eye muscles relax and the IOL assumes a flatter position, but when your focus moves to up close, the eye muscles push the accommodative IOL into a more flexed position.

Toric IOLs

These are specially designed monofocal lenses that are suitable for patients with a moderate degree of astigmatism. This is caused by the irregular shape of the cornea, and sufferers typically experience some degree of blurred vision at all distances. Toric IOLs can give you focused vision at one specific distance. So, you may still require reading glasses for close vision or you may want to combine cataract surgery with LASIK to correct the astigmatism.

Aspheric IOLs

These are premium IOLs that follow the spherical shape of the eye’s natural lens. They can provide better overall vision, including sharper contract and are better for low light conditions, such as driving at night.

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