title: Effect of nylon suture diameter on induced astigmatism after phacoemulsification.
abstract: OBJECTIVE
  To prospectively compare the clinical results of 10-0 and 9-0 monofilament nylon sutures after phacoemulsification with poly(methyl methacrylate) intraocular lens implantation through a 4.0 mm cruciate incision.
  
  
  METHODS
  Department of Ophthalmology, Ramón y Cajal Hospital, Madrid, Spain.
  
  
  METHODS
  One hundred eyes with cataract were randomly assigned to have surgery using a 10-0 or a 9-0 nylon suture. Except for suture diameter, identical surgical methods were used in every case. Data on uncorrected visual acuity, keratometry and postoperative astigmatism were analyzed up to 12 months after surgery.
  
  
  RESULTS
  Both groups had similar uncorrected visual acuity. Mean postoperative corneal astigmatism was against the rule in the 10-0 nylon suture group and with the rule in the 9-0 nylon suture group. Significant differences were found between groups (P < .05).
  
  
  CONCLUSIONS
  Both suture diameters offered satisfactory clinical results. Patients with preoperative with-the-rule astigmatism might benefit from 10-0 nylon sutures and those with preoperative against-the-rule astigmatism, from 9-0 nylon sutures.
authors.affiliation: Department of Ophthalmology, Ramón y Cajal Hospital, Madrid, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Mendívil
mesh_terms: D000368:Aged; D001251:Astigmatism / Q000209:etiology* / Q000503:physiopathology; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D008297:Male; D009757:Nylons; D018918:Phacoemulsification; D019904:Polymethyl Methacrylate; D011183:Postoperative Complications; D011446:Prospective Studies; D013537:Sutures / Q000009:adverse effects*; D014792:Visual Acuity / Q000502:physiology
chemical_list: D009757:Nylons; D019904:Polymethyl Methacrylate