Comparison of Early Changes in Ocular Surface and Inflammatory Mediators between Femtosecond Lenticule Extraction and Small-Incision Lenticule Extraction

To evaluate the short-term changes in ocular surface measures and tear inflammatory mediators after femtosecond lenticule extraction (FLEx) and small-incision lenticule extraction (SMILE) procedures. Eighteen subjects (18 eyes) underwent FLEx and 23 subjects (23 eyes) underwent SMILE in this single-...

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Published in:PloS one Vol. 11; no. 3; p. e0149503
Main Authors: Zhang, Chi, Ding, Hui, He, Miao, Liu, Lina, Liu, Liangping, Li, Gang, Niu, Bing, Zhong, Xingwu
Format: Journal Article
Language:English
Published: United States Public Library of Science 03.03.2016
Public Library of Science (PLoS)
Subjects:
Adult
Antibody microarrays
Apoptosis
Biology and Life Sciences
Chondroitin sulfate
Cornea
Cornea - metabolism
Cornea - pathology
Cornea - surgery
Corneal Surgery, Laser
Cytokines
Disease
Epithelium, Corneal - pathology
Epithelium, Corneal - surgery
Eye (anatomy)
Female
Fibroblasts
Fluorescein
Gelatinase B
Growth factors
Hospitals
Humans
Hypotheses
Inflammation
Inflammation - metabolism
Inflammation - pathology
Inflammation - surgery
Interferon
Interferon-gamma - biosynthesis
Interferon-gamma - metabolism
Interleukin
Interleukin-1alpha - biosynthesis
Interleukin-1alpha - metabolism
Interleukins
Laboratories
Lasers
Male
Matrix metalloproteinase
Matrix Metalloproteinase 9 - biosynthesis
Matrix Metalloproteinase 9 - metabolism
Medicine and Health Sciences
Meniscus
Metalloproteinase
Microscopy
Middle Aged
Multiplexing
Myopia - metabolism
Myopia - pathology
Myopia - surgery
Nerve growth factor
Physical Sciences
Recovery
Refractive Surgical Procedures - methods
Sensitivity
Social Sciences
Surgery
Tearing
Tears
Tears - metabolism
Transforming growth factor
Transforming growth factor-b1
Tumor Necrosis Factor-alpha - biosynthesis
Tumor Necrosis Factor-alpha - metabolism
Tumor necrosis factor-α
Visual Acuity - physiology
Wound healing
γ-Interferon
United States > US
China
ISSN:1932-6203, 1932-6203
Online Access:Get full text
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Summary:To evaluate the short-term changes in ocular surface measures and tear inflammatory mediators after femtosecond lenticule extraction (FLEx) and small-incision lenticule extraction (SMILE) procedures. Eighteen subjects (18 eyes) underwent FLEx and 23 subjects (23 eyes) underwent SMILE in this single-center and prospective study. Central corneal sensitivity, Schirmer I test (SIT), noninvasive tear breakup time (NI-TBUT), tear meniscus height, corneal fluorescein (FL) staining, and ocular surface disease index (OSDI) were assessed in all patients. Concentrations of interleukin-1α (IL-1α), tumor necrosis factor-α (TNF-α), nerve growth factor (NGF), interferon-γ (IFN-γ), transforming growth factor-β1 (TGF-β1) and matrix metalloproteinase-9 (MMP-9) in collected tears were measured by multiplex antibody microarray. Central corneal sensitivity was reduced in both groups, but the scores in the SMILE group were higher than those in the FLEx group at all time points postoperatively (P<0.01). Lower FL scores and longer NI-BUT were observed in the SMILE group 1 week after surgery (P<0.05). OSDI scores in both groups increased rapidly at 1 day and 1 week postoperatively, then returned to their preoperative levels within 1 month (P<0.05). There were no significant differences in SIT or tear meniscus height between the two groups. Lower and faster recovery of tear NGF, TGF-β1 and IL-1α concentration were found in the SMILE group compared to the FLEx group postoperatively. No significant difference was found in tear TNF-α, IFN-γ and MMP-9 for either group before or after surgery. Tear NGF, TGF-β1 and IL-1α show a correlation with ocular surface changes after FLEx or SMILE surgery. SMILE has superiority over FLEx in early ocular surface changes and NGF, TGF-β1 and IL-1α may contribute to the process of ocular surface recovery. ClinicalTrials.gov NCT02540785.
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Competing Interests: The authors have declared that no competing interests exist.
Conceived and designed the experiments: XZ CZ. Performed the experiments: CZ HD MH Lina Liu GL Liangping Liu BN XZ. Analyzed the data: CZ GL. Contributed reagents/materials/analysis tools: CZ XZ. Wrote the paper: CZ XZ.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0149503