title: [The analysis of axial length changes in the phakic eyes after posterior chamber implantation of lens to correct high myopia].
abstract: OBJECTIVE
  To definitive axial length measuring mode of the phakic eyes after posterior chamber implantation of lens.
  
  
  METHODS
  All patients came from the Ophthalmology Hospital of China Medical University. Seventy patients with 135 eyes, aged 21 - 48 years old. Among this group 28 were male, 53 eyes; 42 were female, 82 eyes. A-ultrasound and IOL-Master was used to measure axial length one week before preoperative and three months after ICL implantation. There are two measuring mode in A-ultrasound and IOL-Master: normal and special. All the results were analysed by the SPSS11.5 statistical methods.
  
  
  RESULTS
  (1) preoperative AXL of A-ultrasound and IOL-Master average are: (27.81 ± 0.22) mm, (28.02 ± 0.22) mm; (2) postoperative AXL of phakic and Pseudophakic PMMA mode of IOL-Master average are: (28.01 ± 0.22) mm, (28.12 ± 0.22) mm; (3) postoperative AXL of normal and special mode of A-ultrasound average are: (27.82 ± 0.22) mm, (26.40 ± 0.21) mm.
  
  
  CONCLUSIONS
  According to the different measuring mode, there are some difference of AXL between the preoperative and postoperative ICL. The more accurately measuring mode is IOL-Master phakic mode before and after operation. A-ultrasound normal mode can be used if the lens become so turbid that the AXL can't be obtained by IOL-Master.
authors: Ophthalmology Hospital of China Medical University, The Key Laboratory of Lens in Liaoning Province Colleges and Universities, Shenyang 110005, China. xm5788@163.com
authors: Ming-yu
authors: MY
authors: Shi
authors: Jun
authors: J
authors: Kong
authors: Jin-song
authors: JS
authors: Zhang
mesh_terms: D000328:Adult; D005123:Eye / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular / Q000379:methods*; D007908:Lens, Crystalline; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000601:surgery*; D014463:Ultrasonography; D014792:Visual Acuity; D055815:Young Adult