The Artificial Lens
The power of the lens implant is calculated using an A-scan BIOMETER. It measures the dimensions of the eye and the power of the implant is calculated using these measurements and a range of formulae.
Multifocal lenses are available and offer both distance, reading and intermediate vision without the need for reading glasses for most purposes. They have some distinct advantages for patients who wish to be spectacle non-dependent but are not suitable for everyone.