Comparison of anterior segment changes after femtosecond laser LASIK and SMILE using a dual rotating Scheimpflug analyzer
Autor: | Young Hoon Yang, Jun Hyung Moon, Young Taek Chung, Bu Ki Kim, Ji Sun Kim, Su Joung Mun |
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Rok vydání: | 2019 |
Předmět: |
Male
Corneal Pachymetry genetic structures Corneal Surgery Laser medicine.medical_treatment Scheimpflug principle Keratomileusis Laser In Situ Visual Acuity Keratomileusis law.invention Cornea 0302 clinical medicine lcsh:Ophthalmology law Myopia Medicine Postoperative Period SMILE Small incision lenticule extraction FS-LASIK General Medicine Female Lasers Excimer Research Article Adult medicine.medical_specialty Anterior Chamber Corneal Stroma Galilei Refraction Ocular Slit Lamp Microscopy LASIK 03 medical and health sciences Young Adult Ophthalmology Humans Corneal surface Trial registration Retrospective Studies Keratometer business.industry Corneal Topography eye diseases lcsh:RE1-994 030221 ophthalmology & optometry sense organs business Dual rotating Scheimpflug analyzer 030217 neurology & neurosurgery |
Zdroj: | BMC Ophthalmology BMC Ophthalmology, Vol 19, Iss 1, Pp 1-8 (2019) |
Popis: | Background To compare the changes in the anterior segment after femtosecond laser in situ keratomileusis (FS-LASIK) and small incision lenticule extraction (SMILE) using a dual rotating Scheimpflug (DRS) analyzer (Galilei®; Ziemer Ophthalmology, Port, Switzerland). Methods A total of 218 eyes of 109 patients who underwent FS-LASIK or SMILE for myopic correction were retrospectively studied. Ninety-eight eyes of 49 patients who underwent FS-LASIK were compared to 120 eyes of 60 patients treated with SMILE. A DRS analyzer was used for preoperative and 6-month postoperative anterior segment analyses. Measured variables included the central corneal thickness (CCT), anterior chamber depth (ACD), anterior and posterior keratometry (K), anterior and posterior best-fit sphere radius, and maximum posterior elevation (MPE). Results After the procedure, the amount of CCT decrease was higher in the SMILE group than in the FS-LASIK group, but it was not statistically significant. The MPE was significantly increased after both procedures (p p = 0.001 in the FS-LASIK and SMILE groups, respectively), with the amount of elevation being higher after FS-LASIK than after SMILE even though it was not statistically significant. And there was a significant change in the steep and average posterior K in the FS-LASIK group (p = 0.006 and 0.001, respectively), but not in the SMILE group. Conclusions Regarding changes in the MPE and posterior K, changes in the posterior corneal surface were greater after FS-LASIK than after SMILE. Trial registration The trial registration number: KCT0003628. Date of registration: 15 March 2019. |
Databáze: | OpenAIRE |
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