Impacts of Implantable Collamer Lens V4c Placement on Angle Measurements Made by Optical Coherence Tomography: Two-Year Follow-up
| Autor: | José Ignacio Fernández-Vigo, Cristina Fernández-Pérez, Ana Macarro-Merino, José Ángel Fernández-Vigo, Lucía De-Pablo-Gómez-de-Liaño, Cristina Fernández-Vigo, Julian Garcia-Feijoo |
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| Rok vydání: | 2017 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty Phakic Intraocular Lenses genetic structures Scleral spur Phakic intraocular lens 03 medical and health sciences Quadrant (abdomen) 0302 clinical medicine Optical coherence tomography Lens Implantation Intraocular Ophthalmology medicine Myopia Iridocorneal angle Implantable collamer lens medicine.diagnostic_test business.industry eye diseases Surgery 030104 developmental biology medicine.anatomical_structure 030221 ophthalmology & optometry sense organs Tomography Implant business 030217 neurology & neurosurgery Tomography Optical Coherence Follow-Up Studies |
| Zdroj: | American journal of ophthalmology. 186 |
| ISSN: | 1879-1891 |
| Popis: | Purpose To determine iridocorneal angle changes produced after 2 years of implantable collamer lens (ICL) V4c (STAAR Surgical AG, Nidau, Switzerland) placement by Fourier-domain optical coherence tomography (FD-OCT). Design Prospective interventional case series. Methods In 54 eyes of 27 myopic subjects FD-OCT iridocorneal angle measurements were made before and 1 month, 3 months, 1 year, and 2 years after ICL implant. Trabecular-iris angle (TIA), angle opening distance 500 μm from the scleral spur (AOD 500 ), and iridotrabecular contact length (TICL) were compared among these time points and the nasal, temporal, and inferior quadrants. Results Preoperative TIAs were 49.5 ± 8.7, 48.3 ± 9.6, and 49.1 ±8.6 degrees for the nasal, temporal and inferior quadrants ( P P = .133), temporal ( P = .376), and inferior ( P = 1.000) quadrants. Trabecular-iris contact (TIC) was observed in 8 eyes of 8 subjects, mostly only in the temporal quadrant. Mean TICL failed to vary during follow-up (307 ± 288 μm at 3 months and 225 ± 142 μm at 2 years, P = .159). Conclusions In response to ICL V4c implant, considerable angle narrowing was detected at 1 month but this narrowing remained stable at 2 years. In the 8 cases of TIC, no progression of contact was observed beyond 3 months postimplant. |
| Databáze: | OpenAIRE |
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