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
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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