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| Comparison of vault measurements by Pentacam and anterior segment OCT after Collamer lens implantation |
| Dong Jing,Gao Xiaowei,Hu Yukun,Li Wenjing,Guo Yunlin,Cai Yan,Cao Liping,Liu Liping,Li Xiaohong |
| Department of Ophthalmology, No． 474 Hospital of Chinese PLA, Urumqi 830011, China |
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Abstract Objective To compare vault and other biometric measurements obtained after Collamer lens (PPC-ICL) implantation using a Pentacam anterior segment system and an anterior segment optical coherence tomography system (AS-OCT). Methods In this cross-sectional study, vault and other biometric were was measured in 100 eyes of 50 patients after Collamer lens (PPC-ICL) implantation using a Pentacam and AS-OCT. The statisitical significance of the difference between the measurements was evaluated by a paired t-test and consistency was assessed by Bland-Altman analysis. Results The mean vault measured by Pentacam and AS-OCT was 353.8±124.0 µm and 536.2±150.8 µm (t=27.92, P<0.05) with a significant positive relationship (r=0.905, P＜0.05). There was a 95% level of consistent interval for the difference in interval width (54.3-310.5 µm). Conclusion The measurements obtaind by Pentacam was much lower than AS-OCT. The difference between the measurements of the vault obtained by the two instruments should be considered and accurately evaluated.
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Received: 09 March 2016
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Corresponding Authors:
Gao Xiaowei, Email: gxwgaoxw@263.net
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