Dr Shahriar Nabili
There are 3 categories of lenses.
Standard lenses are used widely in the NHS. These lenses are usually folded and positioned in the eye to replace the natural lens/cataract. These lenses can only correct distance vision and do not correct astigmatism. There are also the same versions of the lenses available which are not foldable and therefore require a larger incision to be made. These lenses (category 1) are rarely used and not usually recommended.
Toric lenses are also folded and positioned inside the eye to replace the natural lens/cataract. Toric lenses correct distance vision and any significant pre-existing astigmatism. These lenses are very good to reduce the need for distance glasses.
Multifocal lenses have varying power in the same lens. These are also foldable and can potentially improve distance, intermediate and near vision.
Multifocal-Toric lenses are a combination of both lenses. These lenses correct astigmatism and also near/intermediate and distance vision.