title: Surgically induced astigmatism after 3.0 mm temporal and nasal clear corneal incisions in bilateral cataract surgery.
abstract: OBJECTIVE
  To compare the corneal refractive changes induced after 3.0 mm temporal and nasal corneal incisions in bilateral cataract surgery.
  
  
  METHODS
  This prospective study comprised a consecutive case series of 60 eyes from 30 patients with bilateral phacoemulsification that were implanted with a 6.0 mm foldable intraocular lens through a 3.0 mm horizontal clear corneal incision (temporal in the right eyes, nasal in the left eyes). The outcome measures were surgically induced astigmatism (SIA) and uncorrected visual acuity (UCVA) 1 and 3 months, post-operatively.
  
  
  RESULTS
  At 1 month, the mean SIA was 0.81 diopter (D) for the temporal incisions and 0.92 D for nasal incisions (P = 0.139). At 3 months, the mean SIA were 0.53 D for temporal incisions and 0.62 D for nasal incisions (P = 0.309). The UCVA was similar in the 2 incision groups before surgery, and at 1 and 3 months post-operatively.
  
  
  CONCLUSIONS
  After bilateral cataract surgery using 3.0 mm temporal and nasal horizontal corneal incisions, the induced corneal astigmatic change was similar in both incision groups. Especially in Asian eyes, both temporal and nasal incisions (3.0 mm or less) would be favorable for astigmatism-neutral cataract surgery.
authors.forename: Je Hwan
authors.initials: JH
authors.lastname: Yoon
authors.forename: Kyun-Hyung
authors.initials: KH
authors.lastname: Kim
authors.forename: Jong Yeon
authors.initials: JY
authors.lastname: Lee
authors.affiliation: Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea.
authors.forename: Dong Heun
authors.initials: DH
authors.lastname: Nam
mesh_terms: D000368:Aged; D001251:Astigmatism / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D003315:Cornea / Q000473:pathology / Q000601:surgery*; D019781:Corneal Topography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007910:Lenses, Intraocular; D008297:Male; D019060:Minimally Invasive Surgical Procedures / Q000009:adverse effects*; D009666:Nose; D018918:Phacoemulsification / Q000009:adverse effects* / Q000379:methods; D011183:Postoperative Complications; D011446:Prospective Studies; D012029:Refraction, Ocular; D012590:Sclera / Q000601:surgery; D014792:Visual Acuity