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Blindness and low vision in Germany 1993-2009
Christian Wolfram1, Norbert Pfeiffer
1University Medical Center, Department of Ophthalmology, Mainz, Germany. christian.wolfram@unimedizin-mainz.de
Ophthalmic Epidemiology
|January 26, 2012
Summary
The number of people with blindness and low vision in Germany increased, primarily due to an aging population. However, age-specific rates decreased, suggesting improved eye health overall.
Area of Science:
- Ophthalmology
- Public Health
- Demography
Background:
- The prevalence of blindness and low vision is influenced by demographic shifts, particularly population aging.
- Understanding these trends is crucial for public health planning and resource allocation in eye care.
Purpose of the Study:
- To analyze the trends in blindness and low vision prevalence in Germany from 1993 to 2009.
- To differentiate the impact of demographic changes, specifically aging, on these prevalence rates.
- To assess changes in age-specific and standardized prevalence to infer underlying eye health status.
Main Methods:
- Utilized official German statistics on severely handicapped individuals and population data (1993-2009).
- Calculated age-specific prevalence rates for blindness and low vision.
- Determined prevalence based on a standardized population to adjust for demographic aging.
Main Results:
- Overall prevalence of blindness and low vision rose by 12.3% (314,404 to 352,943).
- The 75+ age group saw a significant increase in absolute numbers (38.2%).
- Age-specific and standardized prevalence rates decreased, indicating over 30,000 fewer cases than expected without aging.
Conclusions:
- The absolute increase in visual impairment necessitates greater ophthalmic healthcare resources.
- Decreasing age-specific and standardized rates suggest potential improvements in population eye health since 1993.
- Demographic aging is the primary driver of the increased absolute prevalence of blindness and low vision.
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