Dry Eye Clinical Trial
Official title:
Clinical Characteristics of Patients Developing Chronic Dry Eye After Refractive Surgery
In recent years, many scholars have studied the ocular surface damage of patients with dry eye disease（DED）after FS-LASIK, but there has been a lack of comprehensive observation and research on the relationship and difference between dry eye （DE）patients with and without LASIK. Therefore, the purpose of this study was to investigate the characteristics of ocular surface and cytokines after FS-LASIK, and further explain the pathogenesis of chronic dry eyes after FS-LASIK. In addition, we will also compare clinical characteristics and tear neuropeptide concentrations in patients with dry eye disease (DED) with and without chronic ocular pain following FS-LASIK, and to investigate correlations between ocular pain, clinical characteristics, and tear neuropeptide levels.
A single visit cross-sectional study was performed. Approximately 40 chronic dry eye participants who had FS-LASIK more than 12month prior were recruited. Approximately 40 dry eye participants without refractive surgery history and 40 healthy participants without dry eye were also recruited as control groups. In addition, the patients with post-FS-LASIK DED were categorized into two groups based on the presence or absence of chronic ocular pain: (1) post-FS-LASIK DED patients with chronic ocular pain and (2) post-FS-LASIK DED patients without chronic ocular pain. ;
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