Journal of cataract and refractive surgery · 2015
Keratoconus progression after intrastromal corneal ring segment implantation in young patients: Five-year follow-up.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Vega-Estrada Alfredo, Alió Jorge L, Plaza-Puche Ana B
Аннотация
PURPOSE: To analyze whether implantation of intrastromal corneal ring segments (ICRS) influences the progression of keratoconus in young patients.
SETTING: Vissum Corporation, Alicante, Spain.
DESIGN: Retrospective case series.
METHODS: Eyes with confirmed progressive keratoconus and ICRS (Intacs or Keraring) were evaluated. The visual, refractive, topographic, and aberrometric outcomes were assessed at 2 preoperative examinations to confirm the progressive nature of each case. The postoperative follow-up was 5 years.
RESULTS: The study evaluated 18 eyes in 15 patients with a mean age of 25.75 years ± 3.59 (SD). All the visual, refractive, and topographic measurements worsened between the 2 preoperative examinations, confirming the progressive nature of the cases. Six months postoperatively, there was improvement in the uncorrected and corrected distance visual acuities (P > .05) and all refractive measurements (P < .05) and the mean keratometry (K) was reduced by 4.48 diopters (D) (P < .01). Immediately after the procedure, the visual and refractive variables improved but then worsened. From 6 months postoperatively to 5 years, the mean K value regressed 3.36 D.
CONCLUSION: Implantation of ICRS significantly improved the visual, refractive, and topographic parameters in the short term; however, the regression at 5 years suggests that implantation of ICRS does not significantly influence progressive keratoconus in young patients with confirmed progression of the disease.
FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.
SETTING: Vissum Corporation, Alicante, Spain.
DESIGN: Retrospective case series.
METHODS: Eyes with confirmed progressive keratoconus and ICRS (Intacs or Keraring) were evaluated. The visual, refractive, topographic, and aberrometric outcomes were assessed at 2 preoperative examinations to confirm the progressive nature of each case. The postoperative follow-up was 5 years.
RESULTS: The study evaluated 18 eyes in 15 patients with a mean age of 25.75 years ± 3.59 (SD). All the visual, refractive, and topographic measurements worsened between the 2 preoperative examinations, confirming the progressive nature of the cases. Six months postoperatively, there was improvement in the uncorrected and corrected distance visual acuities (P > .05) and all refractive measurements (P < .05) and the mean keratometry (K) was reduced by 4.48 diopters (D) (P < .01). Immediately after the procedure, the visual and refractive variables improved but then worsened. From 6 months postoperatively to 5 years, the mean K value regressed 3.36 D.
CONCLUSION: Implantation of ICRS significantly improved the visual, refractive, and topographic parameters in the short term; however, the regression at 5 years suggests that implantation of ICRS does not significantly influence progressive keratoconus in young patients with confirmed progression of the disease.
FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.