The comparison of immersion B-scan guided with respective sonic velocity and Lenstar LS900 onmeasurement of axial length in silicone oil-filled eyes_Chinese Journal of Ocular Fundus Diseases

Authors：

Wu Bin ,  Chen Song , Liu Yangchen , Li Yan , Gao Jianmin , Li Junhui , He Guanghui

Clinical College of Ophthalmology, Tianjin Medical University, Tianjin Eye Hospital, Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Institute, Tianjin 300020, China;

Corresponding author：

Chen Song, Email: chensong9999@126.com

Keywords：

Axial length, eye; Silicone Oils; Ultrasonography/methods

DOI：

10.3760/cma.j.issn.1005-1015.2017.06.012

Video：

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Objective To evaluate the accuracy of the biometry using immersion B scan and partial coherence interferometry (Lenstar LS900) for the axial length (AL) of silicone oil-filled eyes respectively. Methods Thirty-five silicone oil-filled eyes (38 patients) were included in the study. All of these eyes underwent silicone oil removal, cataract extraction and intraocular lenses implantation. The AL of all the silicone oil-filled eyes was measured with A/B-scan ultrasound and Lenstar LS900 before operation and with Lenstar LS900 after operation. The measured distance was compared respectively. The method of immersion B-scan guided with respective sonic velocity. AL was the sum of corneal thickness, anterior chamber depth, lens thickness, the apparent length of oil bubble (velocity values 996 m/s), the depth of the water layer beneath the oil bubble. Results Thirty-one eyes were measured with Lenstar LS900 before silicone oil removal, and the mean AL was (24.12±1.70) mm, 7 eyes failed to get the results before the operation; 36 eyes were measured with Lenstar LS900 after silicone oil removal, and the mean AL was (24.45±1.89) mm. All eyes were measured with B-scan before silicone oil removal, and the mean AL was (24.87±2.52) mm. The difference (31 eyes) of AL measurement before silicone oil removal by two methods was (−0.00±0.09) mm; the difference (31 eyes) between pre- and post-surgical AL measurement with Lenstar LS900 was (0.02±0.07) mm; the difference (36 eyes) between pre-surgical AL measured with B-scan and post-surgical AL measured with Lenstar LS900 was (−0.02±0.11) mm. All the differences were not statistically significant (t=−0.205, 1.752, −1.280; P＞0.05). The consistency of the results measured by two methods was well in Bland-Ahamn analysis. Conclusions Measurement results of AL between immersion B-scan guided with respective sonic velocity and Lenstar LS900 are high repeatability on silicone oil-filled eyes. The AL of silicone oil-filled eyes can be measured reliably by immersion B-scan guided with respective sonic velocity.

Citation： Wu Bin, Chen Song, Liu Yangchen, Li Yan, Gao Jianmin, Li Junhui, He Guanghui. The comparison of immersion B-scan guided with respective sonic velocity and Lenstar LS900 onmeasurement of axial length in silicone oil-filled eyes. Chinese Journal of Ocular Fundus Diseases, 2017, 33(6): 605-608. doi: 10.3760/cma.j.issn.1005-1015.2017.06.012 Copy

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2.	Assi A, Woodruff S, Gotzaridis E, et al. Combined phacoemulsification and transpupillary drainage of silicone oil: results and complications[J]. Br J Ophthalmol, 2001, 85(8): 942-945.
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4.	Hoffer KJ, Shammas HJ, Savini G. Comparison of 2 laser illstrmoents for measuring axial length[J]. J Cataract Refract Surg, 2010, 36(4): 644-648. DOI: 10.1016/j.jcrs.2009.11.007.
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6.	Holzer MP, Mamusa M, Auffarth GU. Accuracy of a new partialcoherence interferomet D'analyser for biometric measnremenls[J]. Br J Ophthahnol, 2009, 93(6): 807-810. DOI: 10.1136/bjo.2008.152736.
7.	Rohrer K, Frueh BE, Wälti R, et al. Comparison and evaluation of ocular biometry using a new noncontact optical low-coherence reflectometer[J]. Ophthalmology, 2009, 116(11): 2087-2092. DOI: 10.1016/j.ophtha.2009.04.019.
8.	Cruysberg LP, Doors M, Verbakel F, et al. Evaluation of the Lenstar LS 900 non-contact biometer[J]. Br J Ophthalmol, 2010, 94(1): 106-110. DOI: 10.1136/bjo.2009.161729.
9.	Shammas HJ, Hoffer KJ. Repeatability and reproducibility of biometry and keratometry measurements using a noncontact optical low-coherence reflectometer and keratometer[J]. Ophthalmology, 2012, 153(1): 55-61. DOI: 10.1016/j.ajo.2011.06.012.
10.	Shen P, Zheng Y, Ding X, et al. Biometric measurements in highly myopic eyes[J]. J Cataract Refract Surg, 2013, 39(2): 180-187. DOI: 10.1016/j.jcrs.2012.08.064.
11.	Murray DC, Potamitis T, Good P, et al. Biometry of silicone oil-filled eye[J]. Eye, 1999, 13 (Pt 3a): 319-324. DOI: 10.1038/eye.1999.82.
12.	杨青华, 陈兵, 彭广华, 等. 水浴法B超在高度近视眼白内障患者生物测量中的准确性研究[J]. 中华眼科杂志, 2014, 50(1): 32-36. DOI: 10.3969/j.issn.1002-0101.2005.08.007.Yang QH, Chen B, Peng GH, et al. Accuracy of immersion B-scan ultrasound biometry in high myopic patients with cataract [J]. Chin J Ophthalmol, 2014, 50(1): 32-36. DOI: 10.3969/j.issn.1002-0101.2005.08.007.
13.	马楠, 卢海, 杨文利. 声速调整法在硅油填充眼眼轴测量中的应用[J]. 眼科研究, 2007, 25(9): 697-699. DOI: 10.3760/cma.j.issn.2095-0160.2007.09.016.Ma N, Lu H, Yang WL. Axial length measurement in silicone oil tamponade eyes by adjusting ultrasonic speed[J]. Chin Ophthal Res, 2007, 25(9): 697-699. DOI: 10.3760/cma.j.issn.2095-0160.2007.09.016.

1. Abu El Einen KG, Shalaby MH, El Shiwy HT. Immersion B-guided versus contact A-mode biometry for accurate measurement of axial length and intraocular lens power calculation in siliconized eyes[J]. Retina, 2011, 31(2): 262-265. DOI: 10.1097/IAE.0b013e3181e17f39.
2. Assi A, Woodruff S, Gotzaridis E, et al. Combined phacoemulsification and transpupillary drainage of silicone oil: results and complications[J]. Br J Ophthalmol, 2001, 85(8): 942-945.
3. 王铁成, 刘巨平, 李筱荣. IOL-Master测量硅油填充眼眼轴长度的临床评价[J]. 中国实用眼科杂志, 2010, 28(1): 75-76. DOI: 10.3760/cma.jssn.1006-4443.2010.01.024.Wang TC, Liu JP, Li XR. Clinical assessment of IOL-Master for measurment of axial length in silicon oil-filled eyes[J]. Chin J Pract Ophthalmol, 2010, 28(1): 75-76. DOI: 10.3760/cma.jssn.1006-4443.2010.01.024.
4. Hoffer KJ, Shammas HJ, Savini G. Comparison of 2 laser illstrmoents for measuring axial length[J]. J Cataract Refract Surg, 2010, 36(4): 644-648. DOI: 10.1016/j.jcrs.2009.11.007.
5. Buckhurst PJ, Wolffsohn JS, Shah S, et al. A new optical low coherence reflectometry device for ocular biometry in cataract patients[J]. Br J Ophthalmol, 2009, 93(7): 949-953. DOI: 10.1136/bjo.2008.156554.
6. Holzer MP, Mamusa M, Auffarth GU. Accuracy of a new partialcoherence interferomet D'analyser for biometric measnremenls[J]. Br J Ophthahnol, 2009, 93(6): 807-810. DOI: 10.1136/bjo.2008.152736.
7. Rohrer K, Frueh BE, Wälti R, et al. Comparison and evaluation of ocular biometry using a new noncontact optical low-coherence reflectometer[J]. Ophthalmology, 2009, 116(11): 2087-2092. DOI: 10.1016/j.ophtha.2009.04.019.
8. Cruysberg LP, Doors M, Verbakel F, et al. Evaluation of the Lenstar LS 900 non-contact biometer[J]. Br J Ophthalmol, 2010, 94(1): 106-110. DOI: 10.1136/bjo.2009.161729.
9. Shammas HJ, Hoffer KJ. Repeatability and reproducibility of biometry and keratometry measurements using a noncontact optical low-coherence reflectometer and keratometer[J]. Ophthalmology, 2012, 153(1): 55-61. DOI: 10.1016/j.ajo.2011.06.012.
10. Shen P, Zheng Y, Ding X, et al. Biometric measurements in highly myopic eyes[J]. J Cataract Refract Surg, 2013, 39(2): 180-187. DOI: 10.1016/j.jcrs.2012.08.064.
11. Murray DC, Potamitis T, Good P, et al. Biometry of silicone oil-filled eye[J]. Eye, 1999, 13 (Pt 3a): 319-324. DOI: 10.1038/eye.1999.82.
12. 杨青华, 陈兵, 彭广华, 等. 水浴法B超在高度近视眼白内障患者生物测量中的准确性研究[J]. 中华眼科杂志, 2014, 50(1): 32-36. DOI: 10.3969/j.issn.1002-0101.2005.08.007.Yang QH, Chen B, Peng GH, et al. Accuracy of immersion B-scan ultrasound biometry in high myopic patients with cataract [J]. Chin J Ophthalmol, 2014, 50(1): 32-36. DOI: 10.3969/j.issn.1002-0101.2005.08.007.
13. 马楠, 卢海, 杨文利. 声速调整法在硅油填充眼眼轴测量中的应用[J]. 眼科研究, 2007, 25(9): 697-699. DOI: 10.3760/cma.j.issn.2095-0160.2007.09.016.Ma N, Lu H, Yang WL. Axial length measurement in silicone oil tamponade eyes by adjusting ultrasonic speed[J]. Chin Ophthal Res, 2007, 25(9): 697-699. DOI: 10.3760/cma.j.issn.2095-0160.2007.09.016.

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The comparison of immersion B-scan guided with respective sonic velocity and Lenstar LS900 onmeasurement of axial length in silicone oil-filled eyes

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