J Korean Ophthalmol Soc > Volume 58(7); 2017 > Article
Journal of the Korean Ophthalmological Society 2017;58(7):782-787.
DOI: https://doi.org/10.3341/jkos.2017.58.7.782    Published online July 15, 2017.
Prevalence and Risk Factors of Dry Eye Disease after Refractive Surgery.
Dae Yong Son, Sungsoon Hwang, Joo Hyun, Dong Hui Lim, Eui Sang Chung, Tae Young Chung
1Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. tychung@skku.edu
2Saevit Eye Center, Goyang, Korea.
3Rhee's Eye Hospital, Daejeon, Korea.
굴절교정술 후 건성안의 유병률 및 술 후 건성안 발생의 위험인자
손대용1⋅황성순1⋅현 주1,2⋅임동희1⋅정의상1,3⋅정태영1
성균관대학교 의과대학 삼성서울병원 안과학교실1, 새빛안과병원2, 대전 이안과병원3
Correspondence:  Tae-Young Chung, MD, PhD
Email: tychung@skku.edu
Received: 17 March 2017   • Revised: 25 May 2017   • Accepted: 27 June 2017
To assess the prevalence and the risk factors of dry eye disease after refractive surgery. METHODS: A retrospective study was performed on 180 eyes of 98 patients based on medical records. Those who had tear break-up time less of than 5 seconds or had an Oxford stain scale equal to or greater than 2 were defined to have dry eye disease. We analyzed the prevalence of dry eye, compared demographic and clinical features of the dry eye group and normal group, and found risk factors of dry eye after refractive surgery. RESULTS: The prevalence of postoperative dry eye was 62.2%. Compared to the normal eye group, the dry eye group had a significantly higher proportion of women (p = 0.016), older age (p = 0.001), and thin cornea (p = 0.002). The most significant risk factor of dry eye after refractive surgery was presence of dry eye before refractive surgery (odds ratio [OR] = 9.02, confidence interval [CI] = 3.8-21.4). Old age was also found to be an independent risk factor of dry eye after refractive surgery (OR = 1.06, CI = 1.01-1.11). CONCLUSIONS: The risk of dry eye after refractive surgery was increased in older age and preoperative dry eye disease. In order to prevent post-refractive surgery dry eye, caution should be exercised in middle aged patients with preoperative dry eye disease.
Key Words: Dry eye;Prevalence;Refractive surgery;Risk factor

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