Abstract: Objective: To study the relationship between the posterior chamber position and vault after implantation of the implantable collamer lens (ICL). Methods: This was a retrospective case series study. From June 2017 to June 2019, 32 cases of middle and high myopia with ICLs in the horizontal or vertical position were selected in Chongqing Aier Maige Ophthalmology Hospital because the vault of one eye was higher than 750 μm and an ICL at the same length was placed in the vertical position in the contralateral eye. The preoperative examination included the measurement of white-to-white (WTW) diameter under a slit lamp microscope, anterior chamber depth (ACD), sulcus-to-sulcus (STS) horizontal diameter, STS vertical diameter and lens thickness (LT) measured by ultrasound biomicroscopy (UBM). The vault was also measured by UBM. The data were analyzed by a paired t test,multiple linear regression and the receiver operating characteristic (ROC) curve. Results: The vault of the ICL in the vertical position decreased significantly (280±205 μm) compared with that in the horizontal position (t=5.375, P<0.001), and the horizontal-vertical diameter difference in the STS in both eyes was 0.42±0.21 mm. Multiple linear regression showed that the difference in vault was significantly related to the difference in the STS horizontal-vertical diameter (adjusted R2 =0.545, F=10.30, P<0.001), but not related to WTW, ACD or LT. The ROC curve was drawn for the horizontal-vertical diameter difference in STS in both eyes according to the standard of the vertical ICL vault falling into the ideal range (250-750 μm). The area under the curve (AUC) was 0.917, 95%CI 0.764-0.985, P<0.001. The optimal cut-off value was 0.3, the sensitivity was 83.33%, and the specificity was 100%. The ROC curve was drawn for the horizontal-vertical diameter difference in STS in both eyes according to the standard of vault difference in both eyes 100, 200 and 300 μm and above: AUC≥100 μm was 0.859, P≥100 μm=0.007, the optimal cut-off value was 0.3, sensitivity was 76.92%, specificity was 100%; AUC≥200 μm was 0.778, P≥200 μm=0.008,the optimal cut-off value was 0.36, sensitivity was 77.78%, specificity was 71.43%; AUC≥300 μm was 0.754, P≥300 μm=0.015, the optimal cut-off value was 0.36, sensitivity was 85.71%, specificity was 66.67%. Conclusions: In the case of a high vault in the horizontal position, if the horizontal-vertical diameter difference is STS>0.3 mm, there is a high probability that the vault of the ICL in the vertical position can be reduced to the ideal range.
王红霞 彭艳丽 赵中秀 刘夏露. 有晶状体眼人工晶状体后房方位与拱高的相关性[J]. 中华眼视光学与视觉科学杂志, 2020, 22(10): 738-743.
Hongxia Wang, Yanli Peng, Zhongxiu Zhao, Xialu Liu. The Relationship between the Posterior Chamber Position and Vault after Implantation of the Implantable Collamer Lens. Chinese Journal of Optometry Ophthalmology and Visual science, 2020, 22(10): 738-743. DOI: 10.3760/cma.j.cn115909-20200401-00127
Lisa C, Naveiras M, Alfonso-Bartolozzi B, et al. Posterior chamber collagen copolymer phakic intraocular lens with a central hole to correct myopia: One-year follow-up. J Cataract Refract Surg, 2015, 41(6): 1153-1159. DOI: 10.1016/ j.jcrs.2014.10.030.
Miao H, Chen X, Tian M, et al. Refractive outcomes and optical quality after implantation of posterior chamber phakic implantable collamer lens with a central hole (ICL V4c). BMC Ophthalmol, 2018, 18(1): 141. DOI: 10.1186/s12886-018-0805-3.
Kamiya K, Shimizu K, Kawamorita T. Changes in vaulting and the effect on refraction after phakic posterior chamber intraocular lens implantation. J Cataract Refract Surg, 2009, 35(9): 1582-1586. DOI: 10.1016/j.jcrs.2009.03.052.
[6]
Schmidinger G, Lackner B, Pieh S, et al. Long-term changes in posterior chamber phakic intraocular collamer lens vaulting in myopic patients. Ophthalmology, 2010, 117(8): 1506-1511. DOI: 10.1016/j.ophtha.2009.12.013.
[7]
Alfonso JF, Fernández-Vega L, Lisa C, et al. Long-term evaluation of the central vault after phakic Collamer® lens (ICL) implantation using OCT. Graefes Arch Clin Exp Ophthalmol, 2012, 250(12): 1807-1812. DOI: 10.1007/s00417-012-1957-0.
[8]
Alfonso JF, Fernández-Vega L, Lisa C, et al. Central vault after phakic intraocular lens implantation: Correlation with anterior chamber depth, white-to-white distance, spherical equivalent, and patient age. J Cataract Refract Surg, 2012, 38(1): 46-53. DOI: 10.1016/j.jcrs.2011.07.035.
[9]
Lee H, Kang D, Choi JY, et al. Analysis of pre-operative factors affecting range of optimal vaulting after implantation of 12.6-mm V4c implantable collamer lens in myopic eyes. BMC Ophthalmol, 2018, 18(1): 163. DOI: 10.1186/s12886-018-0835-x.
Gonvers M, Bornet C, Othenin-Girard P. Implantable contact lens for moderate to high myopia: Relationship of vaulting to cataract formation. J Cataract Refract Surg, 2003, 29(5): 918- 924. DOI: 10.1016/s0886-3350(03)00065-8.
[12]
Fernandes P, González-Méijome JM, Madrid-Costa D, et al. Implantable collamer posterior chamber intraocular lenses: A review of potential complications. J Refract Surg, 2011, 27(10): 765-776. DOI: 10.3928/1081597X-20110617-01.
[13]
Garcia-De la Rosa G, Olivo-Payne A, Serna-Ojeda JC, et al. Anterior segment optical coherence tomography angle and vault analysis after toric and non-toric implantable collamer lens V4c implantation in patients with high myopia. Br J Ophthalmol, 2018, 102(4): 544-548. DOI: 10.1136/bjophthalmol-2017- 310518.
[14]
Steinwender G, Varna-Tigka K, Shajari M, et al. Anterior subcapsular cataract caused by forceful irrigation during implantation of a posterior chamber phakic intraocular lens with a central hole. J Cataract Refract Surg, 2017, 43(7): 969-974. DOI: 10.1016/j.jcrs.2017.03.045.
[15]
Khalifa YM, Goldsmith J, Moshirfar M. Bilateral explantation ofvisian implantable collamer lenses secondary to bilateral acute angle closure resulting from a non-pupillary block mechanism. J Refract Surg, 2010, 26(12): 991-994. DOI: 10.3928/1081597X- 20100521-01.
Rondeau MJ, Barcsay G, Silverman RH, et a1. Very high frequency ultrasound biometry of the anterior and posterior chamber diameter.J Refract Surg, 2004, 20(5): 454-464. DOI: 10.1001/archgenpsychiatry.2007.17.
Guber I, Chokri L, Majo F. Preoperative sizing of the TICL (Toric Implantable Collamer Lens): The largest was too small. Klin Monbl Augenheilkd, 2012, 229(4): 457-458. DOI: 10.1055/ s-0031-1299221.
Elshafei AM, Genaidy MM, Moharram HM. In vivo positional analysis of implantable collamer lens using ultrasound biomicroscopy. J Ophthalmol, 2016, 2016: 4060467. DOI: 10.1155/2016/4060467.