title: [Refractive aspects of modern cataract surgery].
abstract: OBJECTIVE
  Modern cataract surgery is a refractive procedure whereby one basically can achieve the targeted postoperative refraction.
  
  
  METHODS
  To achieve this goal, according to the patient's wishes, biometry, mathematical calculation of IOL power and astigmatism management are important factors. On the other hand, multifarious developments in intraocular lens technology also contribute to this target.
  
  
  RESULTS
  The individual choice of incision (on axis surgery: incision in the steeper meridian, length, shape and location concerning cornea or sclera) reduces the preoperatively existing astigmatism. Biometry with personalised data and formulas of the third generation are important factors to achieve the targeted refraction. In addition to this, the development of manifold lens designs in the last years to improve intraocular lens quality has enabled progress within various domains, for example, the use of optimised intraocular lenses to compensate corneal aberration, the implantation of toric lenses for corrections of higher pre-existing corneal astigmatism or the use of phacic intraocular lenses to correct higher ametropia.
  
  
  CONCLUSIONS
  Patient satisfaction postoperatively depends on the precise refractive result as desired. With our current operative and technical possibilities we are able to achieve this with high probability and safety.
authors.affiliation: Universitäts-Augenklinik Ulm. Frank.Riederle@medizin.uni-ulm.de
authors.forename: F
authors.initials: F
authors.lastname: Riederle
authors.forename: H-J
authors.initials: HJ
authors.lastname: Buchwald
authors.forename: C
authors.initials: C
authors.lastname: Preissinger
authors.forename: G K
authors.initials: GK
authors.lastname: Lang
mesh_terms: D001251:Astigmatism / Q000601:surgery; D001699:Biometry; D006801:Humans; D007910:Lenses, Intraocular; D017060:Patient Satisfaction; D011474:Prosthesis Design; D012029:Refraction, Ocular