title: Smaller incision size leads to higher predictability in microcoaxial cataract surgery.
abstract: OBJECTIVE
  The aim of the study was to compare the clinical outcomes of a 1.8 mm, 2.2 mm, and 2.75 mm microcoaxial cataract surgery system. METHODS. In this retrospective study, 129 eyes of 129 patients were included. Patients underwent phacoemulsification using a Stellaris system or an Infiniti system. The incision size was 1.8 mm, 2.2 mm, or 2.75 mm, respectively. Subjects were examined before surgery and 4 weeks after. The surgically induced astigmatism (SIA) was examined.
  
  
  RESULTS
  The SIA in the 1.8 mm group was statistically lower compared to the 2.2 mm group (p=0.046) and the 2.75 mm group (p=0.017). There was no significant difference between the 2.2 mm group and the 2.75 mm group.
  
  
  CONCLUSIONS
  With the use of appropriate support systems, 1.8 mm incisions appear to result in less SIA than 2.2 mm and 2.75 mm incisions. Advantages may arise from this, especially in the implantation of aspheric, toric, or multifocal lenses.
authors.affiliation: Department of Ophthalmology, Charité, University Medicine Berlin, Berlin, Germany. matthias.klamann@charite.de
authors.forename: Matthias K J
authors.initials: MK
authors.lastname: Klamann
authors.forename: Johannes
authors.initials: J
authors.lastname: Gonnermann
authors.forename: Anna-Karina B
authors.initials: AK
authors.lastname: Maier
authors.forename: Necip
authors.initials: N
authors.lastname: Torun
authors.forename: Eckart
authors.initials: E
authors.lastname: Bertelmann
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000517:prevention & control*; D003315:Cornea / Q000601:surgery; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D008297:Male; D008866:Microsurgery / Q000379:methods*; D008875:Middle Aged; D018918:Phacoemulsification / Q000379:methods*; D011183:Postoperative Complications / Q000517:prevention & control; D012189:Retrospective Studies; D016896:Treatment Outcome