RESUMEN
During the years 1979-1982 we treated by argon laser photocoagulation 863 eyes of 551 patients affected by peripheral retinal degenerations and breaks. No case of progression to retinal detachment has been registered so far. In the same period, we treated 42 patients affected by retinal detachment of different topography (three posterior pole and 39 peripheral detachments) and size (mostly limited detachments, 12 as large as a quadrant, two larger than a quadrant). In 41 of these 42 eyes, the retina is still firmly attached after a 1- to 4-year follow-up, while in one case it was necessary to proceed surgically following a relapse. While argon laser photocoagulation is certainly the first choice treatment of retinal degenerations and breaks, it also appears to be a reliable alternative to scleral buckling in the management of specific cases of retinal detachment.
Asunto(s)
Terapia por Láser , Rayos Láser , Degeneración Retiniana/cirugía , Desprendimiento de Retina/cirugía , Perforaciones de la Retina/cirugía , Adulto , Anciano , Argón , Femenino , Humanos , Masculino , Persona de Mediana Edad , Embarazo , Degeneración Retiniana/complicaciones , Desprendimiento de Retina/etiología , Perforaciones de la Retina/complicacionesRESUMEN
The authors have been using an argon laser photocoagulator equipped with a green filter for about 21/2 years. Compared to the usual blue-green argon laser, the advantage of such an instrument is that green radiation is not absorbed to any significant degree by macular pigment. This ensures a selective action on hemoglobin and pigment epithelium. The green wavelength appears to be extremely useful in the management of macular disorders. The authors report the criteria they follow and the technique they use in the treatment of subretinal neovascular membranes and of macular edema arising from different retinal vascular disorders.
Asunto(s)
Retinopatía Diabética/cirugía , Terapia por Láser , Rayos Láser , Degeneración Macular/cirugía , Edema Macular/cirugía , Adulto , Anciano , Femenino , Filtración/instrumentación , Humanos , Masculino , Persona de Mediana EdadRESUMEN
Twenty-five asymptomatic patients with neurofibromatosis type 1 (NF 1), aged 6-21 years, underwent the following examinations: intracranial magnetic resonance testing (MRI), visual acuity testing, ophthalmoscopy, and visual field and pattern reversal visual evoked potentials (VEPs). MRI showed enlargement of one or both optic nerves in six children, with bilateral involvement in three. VEPs were normal in all these patients; two of them had abnormalities on other visual examinations, although there were no subjective visual disturbances. These results show that VEPs cannot be considered as a screening test for optic pathway lesions in children with NF 1, as previously stated, and that other types of visual function examination may be more sensitive. These data may contribute to the establishment of more precise guidelines for the evaluation and treatment of children with NF 1.