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oai:docta.ucm.es:20.500.14352/230652024-07-03T15:41:56Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc Fernández-Vigo, José Ignacio author Macarro Merino, Ana author Fernández-Vigo Escribano, Cristina author Fernández-Vigo, José Ángel author Martínez De La Casa Fernández-Borrella, José María author Fernández Pérez, Cristina author García Feijoo, Julián author 2016-02 Purpose To assess by Fourier-domain optical coherence tomography (FDOCT) changes produced in iridocorneal angle measurements in patients undergoing Visian Implantable Collamer Lens (ICL) V4c (STAAR Surgical AG) placement. Design Prospective interventional case series. Methods In 50 eyes of 25 myopic subjects consecutively scheduled for ICL implant, FDOCT (RTVue; Optovue Inc) iridocorneal angle measurements were made before and 1 and 3 months after surgery. Trabecular-iris angle (TIA) and angle opening distance 500 μm anterior to the scleral spur (AOD500) were compared among the quadrants nasal, temporal, and inferior, and correlations with ocular variables including lens vault were examined. Results Preoperative TIA was 48.7 ± 8.7, 48.2 ± 8.7, and 48.7 ± 9.3 degrees for the nasal, temporal, and inferior quadrants, with no differences (P= 1.000). Following ICL implant, corresponding values fell to 31.2 ± 11.5, 30.0 ± 10.7, and 29.7 ± 8.1 degrees at 1 month postsurgery, indicating angle narrowing of 34%-42%, and to 30.6 ± 12.3, 30.1 ± 11.9, and 29.8 ± 12.3 degrees, respectively, at 3 months postsurgery. Angle measurements failed to vary between 1 month and 3 months postsurgery (P= .481). In 8 eyes, iridotrabecular contact attributable to surgery was observed. One month after surgery, vault measurements correlated with TIA (R = -.309;P= .048). Six variables were identified as predictors of TIA at 1 month postsurgery (R2= .907). Conclusions Although considerable angle narrowing was detected 1 month after ICL V4c implant, this narrowing remained stable at 3 months postsurgery. Factors predictive of TIA could serve to identify suitable candidates for ICL placement. Fernández-Vigo, J. I., Macarro Merino, A., Fernández-Vigo Escribano, C. et al. «Effects of Implantable Collamer Lens V4c Placement on Iridocorneal Angle Measurements by Fourier-Domain Optical Coherence Tomography». American Journal of Ophthalmology, vol. 162, febrero de 2016, pp. 43-52.e1. DOI.org (Crossref), https://doi.org/10.1016/j.ajo.2015.11.010. 0002-9394 10.1016/j.ajo.2015.11.010 https://hdl.handle.net/20.500.14352/23065 http://doi.org/10.1016/j.ajo.2015.11.010 http://www.sciencedirect.com/science/article/pii/S0002939415006984 Effects of Implantable Collamer Lens V4c Placement on Iridocorneal Angle Measurements by Fourier-Domain Optical Coherence Tomography