Monofocal IOLs

A monofocal IOL has a single point of focus that typically only allows you to clearly see objects in the distance (e.g. driving, cycling, watching TV). For objects and activities that require your intermediate (e.g. using your computer or anything at arm’s length) and near (e.g. reading, writing, using your mobile phone) vision you will need to wear glasses.

 

Monofocal IOLs are often the standard level of care offered by public hospitals for cataract surgery.

 

Monofocal visual outcomes

Monofocal IOLs

The traditional monofocal IOLs offered by Rayner are RayOne Spheric and RayOne Aspheric. All Rayner IOLs are made of a hydrophilic acrylic material which is highly biocompatible and doesn’t react with living tissue, safely lasting you a lifetime.

 

All Rayner’s traditional monofocal IOLs are designed to provide you with high-quality distance vision without the need for glasses and are incredibly stable and secure once inside the eye.

What can I see clearly with a monofocal lens?

Vision before cataract surgery

Expected vision before cataract surgery

After cataract surgery with no glasses

Expected vision with a monofocal lens implanted

After cataract surgery wearing glasses

Expected vision with a monofocal lens implanted but wearing glasses for near and intermediate activities

Enhanced monofocal IOLs

Rayner also offers an enhanced monofocal IOL, called RayOne EMV, with an optical design that many patients find provides a greater range of clear vision compared to traditional monofocal IOLs1. While a traditional monofocal IOL may only provide clear distance vision, RayOne EMV can provide you with functional intermediate vision for activities such as using a computer or cooking.

 

About one in three patients that receive RayOne EMV targeted to achieve good distance vision in both eyes find that they’re completely spectacle independent for near tasks as well, such as using a mobile phone or reading a menu1.

 

Some IOLs  can come at the risk of negative visual side effects such as stray lights experienced as glare, haloes, or starbursts2. While they might also provide a greater range of clear vision like RayOne EMV does, you may decide that you prefer an IOL like RayOne EMV, which is likely to not induce any visual side effects.

1Royo, M. RayOne EMV and TECNIS Eyhance: A Comparative Clinical Defocus Curve. Data on file. 2021.

2Buckhurst, P et al. Assessment of dysphotopsia in pseudophakic subjects with multifocal intraocular lenses. BMJ Open Ophthalmol. 2017; 1(1).

3Zhang F, Sugar A, Barrett G. Pseudophakic monovision: A clinical guide. Thieme. 2018.

 

Enhanced monofocal visual outcomes

What can I see clearly with an enhanced monofocal lens?

Vision before cataract surgery

Expected vision before cataract surgery

After cataract surgery with no glasses

Expected vision with an enhanced monofocal lens implanted

After cataract surgery wearing glasses

Expected vision with an enhanced monofocal lens implanted but wearing glasses for near activities

Rayner is a British company that is focused on providing the best visual outcomes for patients since 1910.