Dynamic changes of tear fluid matrix metralloproteinase-9 within 1 year after laser in situ keratomileusis / 南方医科大学学报
Journal of Southern Medical University
;
(12): 1079-1082, 2014.
Article
in English
| WPRIM
| ID: wpr-312632
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the dynamic changes of matrix metalloproteinase-9 (MMP-9) level in tear fluid within 12 months after laser in situ keratomileusis (LASIK).</p><p><b>METHODS</b>Twenty-two myopic patients undergoing uneventful LASIK were enrolled in this study. Tear fluid samples were collected from the patients for measurements of MMP-9 level using Western blotting preoperatively, at 7 and 14 days, and at 1, 2, 3, 6, and 12 months after the surgery.</p><p><b>RESULTS</b>MMP-9 concentrations in the tear fluid of post-LASIK patients showed a time-dependent variation pattern. MMP-9 reached its peak level in the tear fluid at 14 days postoperatively, which was 2.70 times the preoperative level; it gradually decreased thereafter but was still 1.38 times the preoperative level at 12 months after the surgery.</p><p><b>CONCLUSIONS</b>MMP-9 concentrations in the tear fluid of post-LASIK patients show a time-dependent variation pattern and remains higher than the preoperative level even at 12 months after the surgery, suggesting that corneal wound healing after LASIK lasts for more than 12 months.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Postoperative Period
/
General Surgery
/
Tears
/
Wound Healing
/
Chemistry
/
Prospective Studies
/
Cornea
/
Matrix Metalloproteinase 9
/
Keratomileusis, Laser In Situ
/
Myopia
Type of study:
Observational study
Limits:
Humans
Language:
English
Journal:
Journal of Southern Medical University
Year:
2014
Type:
Article
Similar
MEDLINE
...
LILACS
LIS