LASIK for Myopia Using the Zeiss VisuMax Femtosecond Laser and MEL 80 Excimer Laser

Journal of Refractive Surgery - Tập 25 Số 4 - Trang 350-356 - 2009
Marcus Blum1, Kathleen S. Kunert, Annika Gille, Walter Sekundo
1Department of Ophthalmology, Helios Hospital, Erfurt, Germany.

Tóm tắt

Purpose: To assess the efficacy, safety, and predictability of the VisuMax femtosecond laser (Carl Zeiss Meditec). Methods: In a prospective, multicenter clinical trial, 32 eyes of 17 patients underwent LASIK and flap creation with the VisuMax femtosecond laser and ablation with the MEL 80 excimer laser (Carl Zeiss Meditec). Mean patient age was 35 years (range: 23 to 52 years). Mean preoperative spherical equivalent refraction was −4.04±1.39 diopters (D) (range: −1.50 to −7.25 D), and the planned flap thickness was 110, 120, 140, and 150 µm. Results: At the 3-month postoperative examination, all eyes had best spectacle-corrected visual acuity of 20/25 and uncorrected visual acuity (UCVA) of 20/40; 91% of eyes reached UCVA of 20/20 or better. Ninety-four percent of eyes were within ±0.50 D of the planned correction. Complications were limited to one case of suction loss, and no other adverse events were noted at 3 months. The flaps were planar and the mean achieved central flap thickness was 118±9.2 µm for an attempted thickness of 120 µm. Conclusions: The investigators achieved LASIK outcomes exceeding the US Food and Drug Administration guidelines for refractive procedures in this series of myopic eyes using the VisuMax femtosecond laser and MEL 80 excimer laser. The curved contact lens of the applanation glass combined with low suction permitted continuous fixation during treatment. [ J Refract Surg. 2009;25:350–356.]

Từ khóa


Tài liệu tham khảo

10.1007/s00417-003-0683-z

10.3928/1081-597X-19980901-12

10.1007/s004170050006

10.1016/S0886-3350(03)00578-9

10.1016/j.jcrs.2004.09.046

10.3928/1081-597X-20030301-03

Waring GO III. Standard graphs for reporting refractive surgery. J Refract Surg. 2000;16:459–466.

US Food and Drug Administration Guidance Documents: Checklist of Information Usually Submitted in an Investigational Device Exemptions (IDE) Application for Refractive Surgery Lasers. October 10 1996. Available at http://www.fda.gov/cdrh/ode/2093.html. Accessed August 2006.

The European Agency for the Evaluation of Medicinal Products. Committee for Proprietary Medicinal Products (CPMP/EWP/1776/99), London, 15 November 2001. Available at http://www.emea.europa.eu/pdfs/human/ewp/177699EN.pdf. Accessed August 2006.

10.1016/j.ophtha.2005.06.032

10.1016/S0886-3350(97)80107-1

10.1016/j.jcrs.2004.08.047

10.1016/S0161-6420(01)00966-6

10.1016/j.ophtha.2006.07.019

10.1016/j.ajo.2004.04.030

10.1016/S0886-3350(00)00835-X

Thông tin
Thông tin xuất bản

Journal of Refractive Surgery

Tập 25 Số 4

350-356

Thông tin tác giả