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Programação » Sessão de Encontro com Autor

Código: P 034
Apresentação: Oral, segunda opção Pôster
Área Técnica: Epidemiologia
Categoria / Classificação: Oftalmologia Clinica
Região onde foi realizada a pesquisa: Sul

INSTITUIÇÃO ONDE FOI REALIZADO O TRABALHO:

CONEP:

AUTOR PRINCIPAL:

CO-AUTOR(ES):

TÍTULO:
PREVALENCE AND CAUSES OF VISUAL IMPAIRMENT AND BLINDNESS IN AN URBAN POPULATION: THE SOUTH BRAZILIAN BOCAIUVA STUDY

OBJETIVO:
To describe the prevalence and causes of visual impairment and blindness in an urban Brazilian population.

MÉTODO:
All subjects over 40 years old living in Bocaiuva city were invited to participate in this population-based study. Participants underwent standardized ophthalmic assessments for visual impairment and blindness, using best-corrected visual acuity, and presenting visual acuity, according to the modified World Health Organization (WHO) definitions. Unilateral blindness was defined based on the worse eye, and bilateral visual impairment or blindness was based on the better eye. Visual impairment was defined as VA <20/60 but ≥20/400, and blindness as VA <20/400. Primary causes of visual impairment and blindness were determined.

RESULTADOS:
A total of 1211 eligible individuals (78.6% response rate) participated, whereas 791 (65.3%) self-reported as White and 385 (31.8%) as non-White. Based on WHO definitions, the age-standardized prevalence for bilateral blindness - 1.78%, bilateral visual impairment - 2.16%, and unilateral blindness - 3.14%. Another 0.17% of bilateral blindness and 3.15% of visual impairment were correctable with refraction. Cataract was the principal cause of best-corrected bilateral blindness (45.4%) and bilateral visual impairment (55.5%). Other major causes of bilateral blindness were: retina/macula abnormalities – including uveitis (31.8%), glaucoma (18.2%), and diabetic retinopathy (4.5%). Other major causes for visual impairment were: retina/macula abnormalities (22.2%), and diabetic retinopathy (3.7%). The main causes for unilateral blindness were: trauma (35.1%), and cataract (21.6%).

CONCLUSÕES:
This is first population-based study from Brazil to report the rates of best-corrected bilateral blindness, visual impairment, and unilateral blindness. Predominant causes of blindness and visual impairment are treatable.

Realização Realização - CBO
Organização/Comercialização Secretaria Executiva - ASSESSOR Secretaria Executiva - MAIS EVENTOS
Agência Oficial Agência de Viagens - Luck Viajens
Agência Web Agência Web - Inteligência Web