An artificial lens is like the lens of glasses except much smaller. It is used to replace the cataract after your cataract has been removed in order to allow you to see clearly again. There are a variety types of artificial lens available and are classified based on their functionality. The basic type of lens basically will require glasses after cataract surgery to see clearly since mostly everyone has an astigmatism and these basic lenses does not treat astigmatism nor do they allow reading without reading glasses.  The advanced lens are designed to provide clear vision without the use of glasses. The toric lens treats astigmatism and thus gives clear vision at far without the need of glasses; however, like the basic lens it does not provide reading vision and thus reading glasses are required. This type of lens is highly recommended for active and elder individuals were freedom of glasses provided convenience and safety. The multifocal and symfony lens are designed to give clear vision at distance and near without the use of glasses. These lens are highly recommended for young active individuals.