Efeito do filtro de ultravioleta em lentes de contato hidrofílicas de alta hidratação

Portes, Arlindo José Freire; Elias, César Antonio; Laje, Celso; Jordão, Lívia Faria; Lyrio, Natasha Moreira

doi:10.1590/s0034-72802008000300003

Rev. bras.oftalmol.

2008

DOI: 10.1590/s0034-72802008000300003

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Efeito do filtro de ultravioleta em lentes de contato hidrofílicas de alta hidratação

Arlindo José Freire Portes

César Antonio Elias²,

Celso Laje

et al.

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2011

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“…This lesion may be clinically aggressive and occasionally threaten vision (1,2) . Recent studies suggest that pterygium is a proliferative condition instead of degenerative, highly associated with UV exposure (3)(4)(5) . The condition is common in the so-called 'pterygium zone', which is defined by a geographical latitude of 40º north and south of the equator (6) .…”

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Characteristics and prevalence of pterygium in small communities along the Solimões and Japurá rivers of the Brazilian Amazon Rainforest

Ribeiro¹,

Ribeiro²,

Castro³

et al. 2011

Rev. bras.oftalmol.

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Purpose: To evaluate the prevalence and characteristics of pterygium in small communities along the Solimões and Japurá rivers, State of Amazonas, Brazil. Design: cross-sectional study. Methods: This study was carried out on populations of the Brazilian Amazon rainforest. Data were collected by two separate ophthalmologists in three expeditions, covering 55 local communities. A total number of 1295 patients were examined, of which 659 were over 18 years old. The patients diagnosed with pterygium answered a questionnaire addressing gender, age and outdoor activity. Pterygium lesion sizes were graded as grade 1 (lesion covers until limbus), grade 2 (lesion covers cornea by 2 mm), grade 3 (lesion surrounds the pupil) and grade 4 (lesion crosses the pupil). Results: Pterygium prevalence was 21.2% for the overall population and 41.1% in those over 18 years old. Patients between 40-50 years old were most affected by pterygium. Pterygium data distribution by gender showed that 57.8% were men. The majority of the patients diagnosed with pterygium was active outdoors (89.5%). Subjects affected in both eyes were 75.6%. Of the total population positive to pterygium the majority was grade 1 (44%) and 2 (48.7%). Most of the patients (85%) developed nasal pterygium. Conclusion: This study shows one of the highest prevalences of pterygium in the world, covering a Brazilian region never studied before.

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mentioning

confidence: 99%

Characteristics and prevalence of pterygium in small communities along the Solimões and Japurá rivers of the Brazilian Amazon Rainforest

Ribeiro¹,

Ribeiro²,

Castro³

et al. 2011

Rev. bras.oftalmol.

Self Cite

View full text Add to dashboard Cite

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Efeito do filtro de ultravioleta em lentes de contato hidrofílicas de alta hidratação

Cited by 1 publication

References 6 publications

Characteristics and prevalence of pterygium in small communities along the Solimões and Japurá rivers of the Brazilian Amazon Rainforest

Characteristics and prevalence of pterygium in small communities along the Solimões and Japurá rivers of the Brazilian Amazon Rainforest

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