title: [Preliminary evaluation of the femtosecond laser-assisted cataract surgery in 300 cases].
abstract: OBJECTIVE
  To evaluate the clinical outcome of the femtosecond laser-assisted cataract surgery (FLACS) in our first 300 cases.
  
  
  METHODS
  In this retrospective study, the study group comprised 300 cases (300 eyes) in which FLACS was done. The control group comprised 300 cases (300 eyes) in which phacoemulsification was performed. The steps of the FLACS included capsulotomy, lens fragmentation, corneal incisions, and creation of incisions within the peripheral cornea to aid the correction of pre-existing astigmatism. After the FLACS, 2.2-mm coaxial micro-incision phacoemulsification and implantation of an intraocular lens were operated. The preoperative best corrected visual acuity (BCVA) and postoperative uncorrected visual acuity (UCVA), the cumulative dissipated energy (CDE) of the phacoemulsification, and the parameters of the FLACS, including the docking time, the suction time and the laser time, were recorded. The complications of the FLACS were analyzed.
  
  
  RESULTS
  The FLACS was successfully completed in 99.33% of the cases. The docking time was (24.6 ± 16.8) sec, the suction time was (101.27 ± 20.09) sec, and the laser time was (23.3 ± 5.5) sec. The most common complications of the FLACS included suction break (7/300, 2.33%), subconjunctival hemorrhage (58/300, 19.33%), pupillary constriction (47/300, 15.67%), incision at a wrong site (13/300, 4.33%), anterior capsular tag (17/300, 5.67%), decentration of the capsulorhexis (11/300, 3.67%), failure to split the lens nucleus (5/300, 1.67%), and posterior capsular ruptures (1/300, 0.33%). The CDE was 5.52 ± 5.18 in the FLACS group and 8.37 ± 7.91 in the traditional phaco group (P < 0.05). The UCVA was 0.12 ± 0.08 and 0.13 ± 0.11 at 1 month after the FLACS and traditional phaco, respectively (P > 0.05).
  
  
  CONCLUSIONS
  Compared with the conventional phacoemulsification surgery, the FLACS can achieve less CDE and better early postoperative visual acuity. Long-term effects remain to be investigated.
authors.affiliation: Wuhan Aier Eye Hospital, Aier School of Ophthalmology, Central South University, Wuhan 430063, China; Email: yong_wang@hotmail.com.
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Wuhan Aier Eye Hospital, Aier School of Ophthalmology, Central South University, Wuhan 430063, China.
authors.forename: Xianyi
authors.initials: X
authors.lastname: Bao
authors.affiliation: Wuhan Aier Eye Hospital, Aier School of Ophthalmology, Central South University, Wuhan 430063, China.
authors.forename: Yanli
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Wuhan Aier Eye Hospital, Aier School of Ophthalmology, Central South University, Wuhan 430063, China.
authors.forename: Rong
authors.initials: R
authors.lastname: Xu
authors.affiliation: Wuhan Aier Eye Hospital, Aier School of Ophthalmology, Central South University, Wuhan 430063, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Peng
authors.affiliation: Wuhan Aier Eye Hospital, Aier School of Ophthalmology, Central South University, Wuhan 430063, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Sun
authors.affiliation: Wuhan Aier Eye Hospital, Aier School of Ophthalmology, Central South University, Wuhan 430063, China.
authors.forename: Danmin
authors.initials: D
authors.lastname: Cao
authors.affiliation: Wuhan Aier Eye Hospital, Aier School of Ophthalmology, Central South University, Wuhan 430063, China.
authors.forename: Ling
authors.initials: L
authors.lastname: He
mesh_terms: D001251:Astigmatism; D019923:Capsulorhexis; D002386:Cataract; D002387:Cataract Extraction / Q000379:methods*; D006801:Humans; D007834:Lasers; D019654:Lens Implantation, Intraocular; D007908:Lens, Crystalline; D007910:Lenses, Intraocular; D018918:Phacoemulsification; D012189:Retrospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity