Journal of refractive surgery (Thorofare, N.J. : 1995) · 2016
Optical Profile Following High Hyperopia Correction With a 500-Hz Excimer Laser System.
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.
Plaza-Puche Ana B, El Aswad Amr, Arba-Mosquera Samuel, Wróbel-Dudzinska Dominika, Abdou Ahmed A, Alió Jorge L
Аннотация
PURPOSE: To evaluate corneal higher order aberrations after LASIK for the correction of high hyperopia using a 500-Hz excimer laser and optimized ablation profile.
METHODS: Retrospective consecutive study including 51 eyes of 28 patients (age range: 21 to 54 years) with high hyperopia or hyperopic astigmatism (sphere ≥ 5.00 diopters). All cases underwent LASIK using the sixth generation Amaris excimer laser (SCHWIND eye-tech-solutions, Kleinostheim, Germany) and a femtosecond laser platform for flap creation. Postoperative changes in corneal higher order aberrations for the 4-, 5-, and 6-mm pupil diameters and corneal asphericity for 4.5 and 8 mm were represented at the end of the 6-month follow-up.
RESULTS: A significant increase in corneal root mean square higher order, spherical, and coma aberrations was observed 6 months after surgery (P < .01). Corneal asphericity for the 4.5-mm (Q45) and 8-mm (Q8) corneal diameter also changed significantly during the postoperative period (P < .01). Strehl ratio change was not statistically significant (P = .77).
CONCLUSIONS: Correction of high hyperopia with LASIK significantly induces corneal higher order aberrations regardless of the physiologic level of photopic and mesopic pupil conditions.
METHODS: Retrospective consecutive study including 51 eyes of 28 patients (age range: 21 to 54 years) with high hyperopia or hyperopic astigmatism (sphere ≥ 5.00 diopters). All cases underwent LASIK using the sixth generation Amaris excimer laser (SCHWIND eye-tech-solutions, Kleinostheim, Germany) and a femtosecond laser platform for flap creation. Postoperative changes in corneal higher order aberrations for the 4-, 5-, and 6-mm pupil diameters and corneal asphericity for 4.5 and 8 mm were represented at the end of the 6-month follow-up.
RESULTS: A significant increase in corneal root mean square higher order, spherical, and coma aberrations was observed 6 months after surgery (P < .01). Corneal asphericity for the 4.5-mm (Q45) and 8-mm (Q8) corneal diameter also changed significantly during the postoperative period (P < .01). Strehl ratio change was not statistically significant (P = .77).
CONCLUSIONS: Correction of high hyperopia with LASIK significantly induces corneal higher order aberrations regardless of the physiologic level of photopic and mesopic pupil conditions.