Comparison between a New Optical Biometry Device and an Anterior Segment Optical Coherence Tomographer for Measuring Central Corneal Thickness and Anterior Chamber Depth
Purpose. To compare between a new optical biometer (AL-Scan, Nidek Co., Aichi, Japan) and an anterior segment optical coherence tomographer (Visante AS-OCT, Carl Zeiss Meditec, Dublin, USA) for measuring central corneal thickness (CCT), anterior chamber depth (ACD), and aqueous depth (AD). Methods....
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Journal of Ophthalmology |
| Online Access: | http://dx.doi.org/10.1155/2016/6347236 |
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| author | Jinhai Huang Weicong Lu Giacomo Savini Hao Chen Chengfang Wang Xinxin Yu Fangjun Bao Qinmei Wang |
| author_facet | Jinhai Huang Weicong Lu Giacomo Savini Hao Chen Chengfang Wang Xinxin Yu Fangjun Bao Qinmei Wang |
| author_sort | Jinhai Huang |
| collection | DOAJ |
| description | Purpose. To compare between a new optical biometer (AL-Scan, Nidek Co., Aichi, Japan) and an anterior segment optical coherence tomographer (Visante AS-OCT, Carl Zeiss Meditec, Dublin, USA) for measuring central corneal thickness (CCT), anterior chamber depth (ACD), and aqueous depth (AD). Methods. Sixty-three eyes of 63 normal subjects were examined with AL-Scan and Visante AS-OCT in this prospective study. One eye per subject was measured three times with both devices to record their CCT, ACD, and AD. All procedures were performed by the same operator. Agreement between the two devices was assessed using paired t-tests, Bland-Altman plots, and 95% limits of agreement (LoA). Results. The mean CCT, ACD, and AD measured by AL-Scan were 538.59±27.37 μm, 3.70±0.30 mm, and 3.16±0.30 mm, respectively. The mean values obtained by the Visante OCT were 536.14±26.61 μm for CCT, 3.71±0.29 mm for ACD, and 3.17±0.29 mm for AD. The mean CCT by the AL-Scan was higher than that obtained by the Visante AS-OCT (difference = 2.45±6.07 μm, P<0.05). The differences in ACD and AD measurements were not statistically significant. The 95% LoA of CCT, ACD, and AD were between −9.44 and 14.35 μm, −0.15 and 0.12 mm, and −0.15 and 0.12 mm, respectively. Conclusions. Since these two devices were comparable for measuring CCT, ACD, and AD, their results can be interchangeably used in the clinic. |
| format | Article |
| id | doaj-art-23ba223facb84edb95a5f258700e0976 |
| institution | Kabale University |
| issn | 2090-004X 2090-0058 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Ophthalmology |
| spelling | doaj-art-23ba223facb84edb95a5f258700e09762025-02-03T01:11:45ZengWileyJournal of Ophthalmology2090-004X2090-00582016-01-01201610.1155/2016/63472366347236Comparison between a New Optical Biometry Device and an Anterior Segment Optical Coherence Tomographer for Measuring Central Corneal Thickness and Anterior Chamber DepthJinhai Huang0Weicong Lu1Giacomo Savini2Hao Chen3Chengfang Wang4Xinxin Yu5Fangjun Bao6Qinmei Wang7School of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, ChinaSchool of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, ChinaG.B. Bietti Foundation IRCCS, Rome, ItalySchool of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, ChinaSchool of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, ChinaSchool of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, ChinaSchool of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, ChinaSchool of Ophthalmology and Optometry, Wenzhou Medical University, Wenzhou, Zhejiang, ChinaPurpose. To compare between a new optical biometer (AL-Scan, Nidek Co., Aichi, Japan) and an anterior segment optical coherence tomographer (Visante AS-OCT, Carl Zeiss Meditec, Dublin, USA) for measuring central corneal thickness (CCT), anterior chamber depth (ACD), and aqueous depth (AD). Methods. Sixty-three eyes of 63 normal subjects were examined with AL-Scan and Visante AS-OCT in this prospective study. One eye per subject was measured three times with both devices to record their CCT, ACD, and AD. All procedures were performed by the same operator. Agreement between the two devices was assessed using paired t-tests, Bland-Altman plots, and 95% limits of agreement (LoA). Results. The mean CCT, ACD, and AD measured by AL-Scan were 538.59±27.37 μm, 3.70±0.30 mm, and 3.16±0.30 mm, respectively. The mean values obtained by the Visante OCT were 536.14±26.61 μm for CCT, 3.71±0.29 mm for ACD, and 3.17±0.29 mm for AD. The mean CCT by the AL-Scan was higher than that obtained by the Visante AS-OCT (difference = 2.45±6.07 μm, P<0.05). The differences in ACD and AD measurements were not statistically significant. The 95% LoA of CCT, ACD, and AD were between −9.44 and 14.35 μm, −0.15 and 0.12 mm, and −0.15 and 0.12 mm, respectively. Conclusions. Since these two devices were comparable for measuring CCT, ACD, and AD, their results can be interchangeably used in the clinic.http://dx.doi.org/10.1155/2016/6347236 |
| spellingShingle | Jinhai Huang Weicong Lu Giacomo Savini Hao Chen Chengfang Wang Xinxin Yu Fangjun Bao Qinmei Wang Comparison between a New Optical Biometry Device and an Anterior Segment Optical Coherence Tomographer for Measuring Central Corneal Thickness and Anterior Chamber Depth Journal of Ophthalmology |
| title | Comparison between a New Optical Biometry Device and an Anterior Segment Optical Coherence Tomographer for Measuring Central Corneal Thickness and Anterior Chamber Depth |
| title_full | Comparison between a New Optical Biometry Device and an Anterior Segment Optical Coherence Tomographer for Measuring Central Corneal Thickness and Anterior Chamber Depth |
| title_fullStr | Comparison between a New Optical Biometry Device and an Anterior Segment Optical Coherence Tomographer for Measuring Central Corneal Thickness and Anterior Chamber Depth |
| title_full_unstemmed | Comparison between a New Optical Biometry Device and an Anterior Segment Optical Coherence Tomographer for Measuring Central Corneal Thickness and Anterior Chamber Depth |
| title_short | Comparison between a New Optical Biometry Device and an Anterior Segment Optical Coherence Tomographer for Measuring Central Corneal Thickness and Anterior Chamber Depth |
| title_sort | comparison between a new optical biometry device and an anterior segment optical coherence tomographer for measuring central corneal thickness and anterior chamber depth |
| url | http://dx.doi.org/10.1155/2016/6347236 |
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