What is the benefit of the EDOF multifocal design vs the conventional CD/CN system?

 

With contact lenses, these challenges can be resolved. In Europe, there are around 340 million people over the age of 30+ who need some degree of correction in order to see closely. The conventional CD/CN Multifocal design are increasingly being adapted.

 

Reasons for this are a cosmetic advantage over glasses:

• Some people just don’t want to wear glasses, or find moving their head too much of a hassle.
• But also, our vision is constantly challenged by the use of smartphones, tablets, smartwatches, laptops, TVs, basically everything around us.

 

The CD/CN lenses tend to have difficulty in contrast sensitivity, unwanted haloes and ghosting and also lower contrast and acuity. The Brian Holden Vision Institute designed a multifocal lens to provide optimal vision over a wide range, allowing us to look from the more distant objects to the closer ones with greater precision.

 

The latest ‘Kid on the block’  EDOF

When we consider the visual compromises associated with current multifocal contact lens designs and a globally increasing presbyopic population. It highlights the need for more advanced presbyopic contact lens designs e.g. Extended depth of Focus EDOF.

EDOF lenses are designed using deliberate manipulation of higher-order aberrations to provide good vision at all viewing distances, minimizing visual compromises such as ghosting and halo’s.

EDOF mimics the eye’s natural ability to focus, providing clear vision at all distances resulting in improved depth perception and greater visual satisfaction.