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목적 : To investigate the mechanism of rhegmatogenous retinal detachment (RRD) in young and elderly Korean patients based on the results of axial length distribution
방법 : We retrospectively reviewed the medical records of RRD patients who had bilateral axial length data examined and who received treatment at Seoul National University Bundang Hospital between 2003 and 2018. The frequency of RRD and axial length distribution according to age groups were investigated. The mean value of bilateral axial length was used for analysis.
결과 : 1599 patients with RRD (mean age, 49.5 years; 690 female) were included. The number of RRD patients showed a bimodal distribution according to the age groups, with the highest peak at 55-59 years and second peak at 25-29 years. The mean axial length was significantly longer in patients aged younger than 50 years compared to those aged 50 years or older (26.18±1.86 mm vs. 24.55±1.67 mm, respectively, p<0.001). The percentage of patients with high myopia (axial length > 26 mm) in aged < 50 years is higher than those aged 50 years or older (51.9% vs. 15.0%, respectively, p<0.001).
결론 : There is a significant difference in the prevalence of myopia and high myopia between young and elderly patients with RRD which corresponds to the bimodal distribution of RRD incidence. The early peak in the RRD incidence might be due to the myopia-induced early posterior vitreous detachment while the late peak is due to the senile vitreous liquefaction and detachment in the elderly population.
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