Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2008 May-Jun;71(3):375-80.
doi: 10.1590/s0004-27492008000300013.

Prevalence of age-related macular degeneration in Japanese immigrants and their descendants living in Londrina (PR) - Brazil

Ana Paula Miyagusko Taba Oguido  1 , Antonio Marcelo Barbante Casella, Tiemi Matsuo, Eduardo Henrique de Freitas Ramos Filho, Rodrigo Berbel, Ricardo Montanheiro Alcântara Silva
Affiliations
Free article

Prevalence of age-related macular degeneration in Japanese immigrants and their descendants living in Londrina (PR) - Brazil

Ana Paula Miyagusko Taba Oguido et al. Arq Bras Oftalmol. 2008 May-Jun.
Free article

Abstract

Purpose: To determine the prevalence of early and late-stage age-related macular degeneration (ARMD) and its association with risk factors such as age, gender, smoking, body mass index, hypertension and diabetes history, cataracts and pseudophakia.

Design: Population-based cross-sectional study in an elderly Japanese-Brazilian population from Londrina (Paraná, Brazil).

Methods: The study included 483 (80.5%) of the 600 registered members of a local association for Japanese immigrants and their descendants, aged 60 years and up. The presence of early and late-stage age-related macular degeneration was determined using the standard protocol and the international classification system.

Results: The mean age of the study subjects was 71 years. The overall prevalence of age-related macular degeneration was 15.1% (CI 95%; 12-18.7). The prevalence of early-stage age-related macular degeneration was 13.8% (CI 95%; 10.9-17.3), geographic atrophy was present in 0.4% and neovascular age-related macular degeneration in 0.8%. Age-related macular degeneration was significantly (p=0.004) and linearly (p=0.001) associated with age.

Conclusion: Our study population displays a prevalence of early and late-stage age-related macular degeneration and component lesions similar to those of other Western countries, and data suggest a higher prevalence than that reported for populations in Japan. Since the age-related macular degeneration prevalence tends to rise as the population ages, studies identifying risk factors and exploring prevention methods are becoming increasingly important.

PubMed Disclaimer