title: [Anterior chamber phakic intraocular lens implantation in highly myopic eyes].
abstract: OBJECTIVE
  To investigate the stability, predictability and safety of angle-supported phakic intraocular lens (IOL) implantation in high myopia.
  
  
  METHODS
  Seventy-six myopic eyes of 40 patients treated with anterior chamber angle-supported phakic IOL (Phakic6H) implantation were followed. The average myopia diopter was (-15.89 +/- 3.78) D (-9.50 to -26.25 D) and the best corrected visual acuity (BCVA) was (0.82 +/- 0.20) (0.5 to 1.0). The average follow-up time was 12 months. All the treated eyes were observed for anterior segment changes, uncorrected visual acuity (UCVA), BCVA, refraction, intraocular pressure (IOP) and corneal endothelium preoperatively and postoperatively. All data were analyzed in statistics.
  
  
  RESULTS
  One year after the surgery, the average UCVA was (1.00 +/- 0.35) (0.3 to 1.5) and BCVA was (1.18 +/- 0.29) (0.5 to 1.5). The average residual refraction was (-0.40 +/- 0.64) D (-2.00 to +0.50 D). In 96.1% of eyes, the average residual refraction was within +/- 1.0 diopter. The average corneal endothelial count before and one year after the surgery was (3174 +/- 248)/mm(2) and (3067 +/- 320)/mm(2) (P < 0.01) respectively. The intraocular pressure before and one year after the surgery was (16.12 +/- 2.32) mmHg and (15.29 +/- 3.38) mmHg (P < 0.05) respectively. Two patients (4 eyes) complained of halo and glare. One patient's (2 eyes) pupils were oval and another one (2 eyes) showed decentered phakic IOL. Macular hemorrhage occurred in one patient (2 eyes) after eight months of surgery.
  
  
  CONCLUSIONS
  Angle-supported phakic IOL implantation is effective for treatment of high myopia and the results are predictable. It deserves further clinical investigation. The effectiveness and safety of this kind of phakic IOL should be further observed for a long period of time.
authors.affiliation: Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University, Shanghai 200025, China. jclianb@online.sh.cn
authors.forename: Jing-cai
authors.initials: JC
authors.lastname: Lian
authors.forename: Zheng-shen
authors.initials: ZS
authors.lastname: Zhou
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Cai-hong
authors.initials: CH
authors.lastname: Zhu
authors.forename: Hao
authors.initials: H
authors.lastname: Meng
authors.forename: Kang-sun
authors.initials: KS
authors.lastname: Wang
mesh_terms: D000328:Adult; D000867:Anterior Chamber / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000601:surgery*; D012029:Refraction, Ocular / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology