RESUMO
During the period 1970-87 we evaluated the changes of the optic disc, peripapillary area, detached macula and visual acuity in 16 cases with congenital pit of the optic nerve and macular detachment. The study revealed in 9 of the 16 cases (56%) an increase of the dimension of the pit or changes in its color, findings which were directly related to the duration of the macular detachment. Chorioretinal scarring, pigment migration, or both, were also noted mainly at the temporal margin of optic disc. In 5/16 cases we found during the follow-up an extension of macular elevation. In altogether 10 out of 16 cases the retinal elevation covered the larger portion of the mid-periphery temporally. In 7/16 cases the final visual acuity remained unchanged, in 9/16 cases deteriorated. The difference, however, in the latter 9 cases between initial and final visual acuity was negligible. During the follow-up period deterioration of the visual fields was also noted.
Assuntos
Macula Lutea/patologia , Doenças do Nervo Óptico/congênito , Descolamento Retiniano/patologia , Adolescente , Adulto , Feminino , Angiofluoresceinografia , Seguimentos , Fundo de Olho , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Disco Óptico/patologia , Doenças do Nervo Óptico/patologia , Acuidade Visual , Campos VisuaisRESUMO
We examined the tear drainage system of twenty-fiv normal volunteers by scintillography with Technetium Tc 99m (Pertechnetate). We photographed the changes occurring in the lacrimal sac and nasolacrimal duct during closure and opening of the eyelids. Our findings support Jones' views of normal tear drainage. The tracer was concentrated in the lacrimal sac while the lids were closed for 3 minutes and descended into the nasolacrimal duct as soon as they opened.
