Journal of cataract and refractive surgery · 2015
Collagen copolymer posterior chamber phakic intraocular lens supported by the ciliary sulcus to treat myopia: one-year follow-up.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Lisa Carlos, Alfonso José Fernando, Alfonso-Bartolozzi Belén, Fernández-Vega Luis, Pérez-Vives Cari, Montés-Micó Robert
Аннотация
PURPOSE: To evaluate the predictability, stability, safety, and efficacy of Visian V4b Implantable Collamer Lens phakic intraocular lens (pIOL) implantation to treat varying degrees of myopia.
SETTING: Fernández-Vega Ophthalmological Institute, Oviedo, Spain.
DESIGN: Prospective nonrandomized clinical study.
METHODS: The uncorrected (UDVA) and corrected (CDVA) distance visual acuities, refraction, pIOL vault, and adverse effects were evaluated 12 months postoperatively.
RESULTS: The study enrolled 121 eyes (68 patients). The mean spherical equivalent decreased from -8.61 diopters (D) ± 3.41 (SD) (range -18.75 to -2.25 D) preoperatively to -0.18 ± 0.29 D (range -1.25 to 0.50 D) 12 months postoperatively; 97 eyes (80.2%) were within ±0.25 D of the target refraction and 114 eyes (94.2%) were within ±0.50 D (r(2) = 0.99). The mean Snellen decimal UDVA and CDVA were 0.91 ± 0.17 and 0.97 ± 0.09, respectively. Postoperatively, the UDVA was 20/20 or better in 80 eyes (66.1%) and 20/40 or better in 115 eyes (95.0%). The mean efficacy index was 0.96 ± 0.14. The CDVA was 20/20 or better in 103 eyes (85.1%) and 20/40 or better in all eyes. No eye lost lines of CDVA, and 22 eyes (18.2%) gained 1 or more lines of CDVA. The mean safety index was 1.04 ± 0.10. There were no intraoperative complications.
CONCLUSIONS: The predictability, safety, and effectiveness of the pIOL were good throughout the 12-month follow-up and comparable to outcomes reported for previous pIOL models.
FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.
SETTING: Fernández-Vega Ophthalmological Institute, Oviedo, Spain.
DESIGN: Prospective nonrandomized clinical study.
METHODS: The uncorrected (UDVA) and corrected (CDVA) distance visual acuities, refraction, pIOL vault, and adverse effects were evaluated 12 months postoperatively.
RESULTS: The study enrolled 121 eyes (68 patients). The mean spherical equivalent decreased from -8.61 diopters (D) ± 3.41 (SD) (range -18.75 to -2.25 D) preoperatively to -0.18 ± 0.29 D (range -1.25 to 0.50 D) 12 months postoperatively; 97 eyes (80.2%) were within ±0.25 D of the target refraction and 114 eyes (94.2%) were within ±0.50 D (r(2) = 0.99). The mean Snellen decimal UDVA and CDVA were 0.91 ± 0.17 and 0.97 ± 0.09, respectively. Postoperatively, the UDVA was 20/20 or better in 80 eyes (66.1%) and 20/40 or better in 115 eyes (95.0%). The mean efficacy index was 0.96 ± 0.14. The CDVA was 20/20 or better in 103 eyes (85.1%) and 20/40 or better in all eyes. No eye lost lines of CDVA, and 22 eyes (18.2%) gained 1 or more lines of CDVA. The mean safety index was 1.04 ± 0.10. There were no intraoperative complications.
CONCLUSIONS: The predictability, safety, and effectiveness of the pIOL were good throughout the 12-month follow-up and comparable to outcomes reported for previous pIOL models.
FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.