Role of tear vasoactive intestinal peptide on dry eyes after laser keratorefractive surgery

BMC Ophthalmology

卷:23

Research

Xue Li¹  Qiong Wu¹  Yang Kang¹  Qi Hu¹  Hong Zhang¹  Zidan Guo² 

[1] Eye Hospital, The First Affiliated Hospital of Harbin Medical University, No. 143, Yiman Street, 150001, Harbin, Heilongjiang Province, People’s Republic of China;

[2] Outpatient department of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang Province, People’s Republic of China;

关键词: Dry eye;    FS-LASIK;    LASEK;    Vasoactive intestinal peptide;    Corneal ablation depth;   

DOI  :  10.1186/s12886-023-02857-w

 received in 2022-09-15, accepted in 2023-03-13,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundTo explore the changes in vasoactive intestinal peptide (VIP) concentration in tears post laser-assisted sub-epithelial keratomileusis (LASEK) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK) surgeries and related factors, possible association between postoperative dry eye symptoms and VIP concentration in tears, and factors influencing dry eye symptoms after different periods post LASEK and FS-LASIK surgeries.MethodsIn this prospective, non-randomized, longitudinal cohort study, 23 and 22 subjects were recruited and underwent LASEK and FS-LASIK, respectively. After conducting an intact ophthalmic examination and collecting relevant surgical data, all subjects were examined for VIP concentration in their tears using ELISAs, tear-film breakup time, ocular staining and ocular surface disease index questionnaire before surgery and 1 day, 1 week, and 1 month post-surgery.ResultsTear VIP concentration increased significantly after both LASEK and FS-LASIK, with the highest concentration observed 1 week post-surgery (P ≤ 0.05). Tear VIP concentration correlated negatively with corneal ablation depth (AD). The extent of dry eyes was related to the operation method employed and postoperative recovery period. In FS-LASIK and LASEK subjects, dry eyes were mainly affected by the basic ocular surface status before surgery, and VIP concentration. Furthermore, in LASEK subjects, dry eyes were negatively correlated with AD.ConclusionVIP was stimulated and mobilized as an emergency protection post-refractive surgery and a trauma model affected by AD. It can indirectly indicate the inevitable relationship between postoperative dry eye and nerve injury. Elevated post-surgery tear VIP relieves dry eye symptoms, showing its neuroimmune role in regulating adverse injury stimulation. The present study provides a solution to the pathogenesis of postoperative dry eyes.Trial registrationThe trial registration number: 2021JS22. Date of registration: 10 May 2021.

【 授权许可】

CC BY   
© The Author(s) 2023

【 图 表 】

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