Assuntos
Blefarite , Pestanas , Infestações por Ácaros , Chile , Humanos , Infestações por Ácaros/epidemiologia , Prevalência , UniversidadesRESUMO
OBJETIVO: Determinar la presencia de Demodex spp. en la unidad pilosebácea de las pestañas en voluntarios de una sede de una universidad privada. MATERIALES Y MÉTODOS: A los voluntarios se les realizó anamnesis, estudio biomicroscópico y se tomaron muestras de 8 pestañas, 2 de cada párpado de ambos ojos. Las pestañas fueron montadas en un portaobjeto y observadas bajo un microscopio de luz para determinar la presencia y cantidad de ácaros. RESULTADOS: Se reclutaron 200 voluntarios, determinando en 54 (27%) de ellos la prevalencia de Demodex spp. De los casos positivos, 40 (74,1%) presentaron signos y/o síntomas de blefaritis, 43 (79,7%) presentaron el ácaro en un solo ojo, y se obtuvo un índice de infestación promedio de 0,65 Demodex spp. por pestaña. CONCLUSIONES: Aproximadamente uno de cada 4 de los voluntarios estudiados sin diagnóstico de blefaritis fue portador del parásito, de los cuales un importante porcentaje presentó algún tipo de signo y/o síntoma de esta patología la cual se relacionaba con un mayor índice de infestación (p < 0,05)
OBJECTIVE: To determine the presence of Demodex spp. in the eyelashes' pilosebaceous unit in volunteers of one campus of a private university. MATERIALS AND METHODS: The volunteers underwent anamnesis, biomicroscopic study and samples were taken of 8 eyelashes, 2 of each eyelid of both eyes. The eyelashes were mounted on a slide and observed under a light microscope to determine the presence and quantity of mites. RESULTS: 200 volunteers were recruited, determining the prevalence of Demodex spp. in 54 (27%) of them. Of the positive cases, 40 (74.1%) presented signs and/or symptoms of blepharitis, 43 (79.7%) presented the mite in one eye and an average infestation rate of 0.65 Demodex spp. per eyelash was obtained. CONCLUSIONS: Approximately one in four of the volunteers studied without a diagnosis of blepharitis was a carrier of the parasite, of which a significant percentage presented some type of sign and/or symptom of this pathology which was related to a higher rate of infestation (p < 0.05)
Assuntos
Humanos , Animais , Masculino , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Infecções Oculares Parasitárias/epidemiologia , Pestanas/parasitologia , Infestações por Ácaros/epidemiologia , Universidades/estatística & dados numéricos , Chile/epidemiologia , Infecções Oculares Parasitárias/diagnóstico , Infestações por Ácaros/diagnóstico , PrevalênciaRESUMO
OBJECTIVE: To determine the presence of Demodex spp. in the eyelashes' pilosebaceous unit in volunteers of one campus of a private university. MATERIALS AND METHODS: The volunteers underwent anamnesis, biomicroscopic study and samples were taken of 8 eyelashes, 2 of each eyelid of both eyes. The eyelashes were mounted on a slide and observed under a light microscope to determine the presence and quantity of mites. RESULTS: 200 volunteers were recruited, determining the prevalence of Demodex spp. in 54 (27%) of them. Of the positive cases, 40 (74.1%) presented signs and/or symptoms of blepharitis, 43 (79.7%) presented the mite in one eye and an average infestation rate of 0.65 Demodex spp. per eyelash was obtained. CONCLUSIONS: Approximately one in four of the volunteers studied without a diagnosis of blepharitis was a carrier of the parasite, of which a significant percentage presented some type of sign and/or symptom of this pathology which was related to a higher rate of infestation (p<0.05).
