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Refractive error profile--a clinical study
1Department of Ophthalmology, Kathmandu Medical College, Sinamangal, Kathmandu, Nepal. kjdkarki@yahoo.com
Kathmandu University Medical Journal (KUMJ)
|January 10, 2006
Summary
This study analyzed refractive error distribution across Nepalese ethnic groups, revealing variations in myopia, hyperopia, and astigmatism prevalence. Findings establish a refractive error profile for the Nepalese population.
Area of Science:
- Ophthalmology
- Public Health
- Population Genetics
Background:
- Refractive errors are a significant global public health concern.
- Understanding ethnic variations in refractive error is crucial for targeted eye care interventions.
Purpose of the Study:
- To investigate the prevalence and distribution of refractive errors (myopia, hyperopia, astigmatism) among different ethnic groups in Nepal.
- To establish a comprehensive refractive error profile for the Nepalese population.
Main Methods:
- A cross-sectional study involving 1276 new eye patients aged 5-35 years.
- Comprehensive eye examinations including vision testing and retinoscopic refraction.
- Detailed ethnic categorization of participants.
Main Results:
- The study included 51.33% males and 48.66% females.
- Ethnic distribution showed Newars (32.44%), Brahmins (27.50%), Chhetriyas (21.63%), combined hill ethnic groups (12.14%), and Madhesias (6.26%).
- Astigmatism was most prevalent in Madhesias (51.25%), while hyperopia was highest among combined hill ethnic groups (52.90%). Myopia prevalence varied across groups.
Conclusions:
- A distinct refractive error profile exists within the Nepalese population.
- Ethnic background is a significant factor influencing refractive error distribution.
- These findings can inform public health strategies for eye care in Nepal.