RESUMO

Using scintigraphy, we have studied the lacrimal drainage from the conjunctival sac of normal subjects and patients who have undergone dacryocystorhinostomy. A mathematical model of drainage was constructed that accurately described the complete activity curves for both groups. The initial rate of drainage was shown to be a relevant parameter to characterize drainage, and it was found to be different from normals to patients, indicating that the lacrimal pump mechanism is affected by dacryocystorhinostomy.

Assuntos

Dacriocistorinostomia , Doenças do Aparelho Lacrimal/fisiopatologia , Aparelho Lacrimal/fisiopatologia , Lágrimas/fisiologia , Adolescente , Adulto , Idoso , Análise de Variância , Humanos , Aparelho Lacrimal/diagnóstico por imagem , Doenças do Aparelho Lacrimal/cirurgia , Pessoa de Meia-Idade , Modelos Teóricos , Cintilografia , Tecnécio , Resultado do Tratamento