A central element of any cataract surgery is the selection of a suitable intraocular lens. At the beginning of surgical training, the selection initially focuses on the correct lens strength according to the desired target refraction from an existing consignment stock. Depending on the training institution, only one or several lens types are likely available for selection. Their properties, especially their always present specific implantation peculiarities, may not necessarily be suitable for beginners, as the selection of the consignment stock is the responsibility of the management level and often involves individual premises.