[The analysis of axial length changes in the phakic eyes after posterior chamber implantation of lens to correct high myopia].

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. CONCLUSION: 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.