Epidemiologic characteristics of rhegmatogenous retinal detachment in Kumamoto, Japan

Abstract

Compared with previously published studies from other countries, the incidence of detachments associated with lattice degeneration and macular hole was higher, while the incidences of aphakic detachment and detachment due to blunt trauma were lower in Japan. Racial factors and living habits may affect the development of retinal detachment.

Five Year Nationwide Incidence of Rhegmatogenous Retinal Detachment Requiring Surgery in Korea

“…In all the studies, RRD incidences were similar from 0 to 49 years of age, but significant differences in RRD incidences were observed in age groups above 50 years. As stated above, both Caucasians and Asians showed a peak RRD incidence at 50–79 years of age; however, Caucasians (studies in the Netherlands, [13] Scotland, [12] Brazil, [10] New Zealand, [9] and United States [14] ) had significantly higher RRD incidences at 50 years and over than did the Asians (studies in Korea, China, [7] , [8] Singapore, [6] and Japan [5] ). Myopia is more frequent and more severe in Asians than in Caucasians, and people with myopia develop posterior vitreous detachment (PVD) earlier and more frequently.…”

“…Our results showed a bimodal distribution of RRD incidences according to age group, and the seventh decade of life showed a peak incidence of RRD, which coincides with the peak-incidence age in other countries ( Table 3 ). [5] , [8] , [9] , [13] – [15] , [18] Although these studies had different study periods, population coverage, population size, data source, and age-group categories, an increasing trend was observed in RRD incidences with age. In all the studies, RRD incidences were similar from 0 to 49 years of age, but significant differences in RRD incidences were observed in age groups above 50 years.…”

“…However, the risk of RRD attributable to ocular trauma is reportedly low. [1] , [5] , [6] , [13] In addition, several studies, including those conducted in Asia, have shown no difference in the refractive error between the 2 sexes, and a study conducted in Singapore reported that the prevalence of high myopia was higher in women than in men. [28] – [30] …”

“… [1] – [4] Most of these studies estimated the RRD incidence in a specific regional population and not the nationwide population. [2] , [5] , [7] – [10] , [14] Van de Put et al [13] provided a reliable and informative report of the RRD incidence in the nationwide population of the Netherlands. However, the study was limited in that the RRD incidence was estimated from retrospectively reviewed hospital records for a relatively short period (1 year).…”

Retinal detachment in England: database studies of trends over time and geographical variation

“…Examples of annual RD incidence rates per 100 000 include: 6.9 in Helsinki district, Finland (1978–1981),9 8.0 in Beijing, China (1999–2000),21 10.4 in Kumamoto, Japan (1990),11 10.6 in Orebro and Varmland counties, Sweden (1971–1981),10 12.4 in Iowa, USA (1976),7 12.9 in Rochester, Minnesota, USA (1970–1978),8 and 17.9 in Olmsted County, Minnesota, USA (1976–1995) 3. These studies differ both in methodology and time period.…”