RESUMO
Recent innovations in vitrectors have led to studies of evaluated aspiration rates of basic saline solution, porcine vitreous, and human vitreous, but each of these substances has potential drawbacks. The authors determined the timed removal rates of egg white with the Accurus 20-, 23-, and 25-gauge vitreous cutters (Alcon Laboratories, Inc., Fort Worth, TX) and the Millennium AVE 20- and 25-gauge system (Bausch & Lomb, St. Louis, MO and MID Labs, Inc., San Diego, CA) using various machine parameters. The Accurus 20- and 23-gauge cutters and the Millennium AVE 20- and 25-gauge cutters removed egg white easily. At higher cut rates, where slow and delicate removal of vitreous is typically desired, the probes, as expected, removed egg white more slowly.
Assuntos
Clara de Ovo , Modelos Biológicos , Sucção/métodos , Vitrectomia/métodos , Humanos , Vitrectomia/instrumentaçãoRESUMO
BACKGROUND: There has been a dramatic rise of type 2 diabetes mellitus (DM2) in the US pediatric population, yet the presence of retinopathy and microalbuminuria in this cohort has not yet been described. AIM: To assess the presence of retinopathy and microalbuminuria in a cohort of predominantly minority adolescents (African American and Caribbean Hispanic) with DM2. PATIENTS AND METHODS: Forty pediatric patients with DM2 were examined between July, 2001 and June, 2003 for the presence of retinopathy. Data were also collected regarding microalbuminuria, body mass index, HbA1c, and family history of DM. RESULTS: Of the 40 patients examined, one patient (2.5%) had retinopathy, whereas nine (27.3%) had microalbuminuria. CONCLUSIONS: In young predominantly minority adolescents with DM2, retinopathy is rare, while microalbuminuria is common.
Assuntos
Albuminúria/epidemiologia , Negro ou Afro-Americano , Diabetes Mellitus Tipo 2/epidemiologia , Retinopatia Diabética/epidemiologia , Hispânico ou Latino , Adolescente , Adulto , Idade de Início , Albuminúria/diagnóstico , Índice de Massa Corporal , Região do Caribe/epidemiologia , Criança , Comorbidade , Diabetes Mellitus Tipo 2/diagnóstico , Retinopatia Diabética/diagnóstico , Feminino , Hemoglobinas Glicadas/metabolismo , Humanos , Masculino , Prevalência , PrognósticoRESUMO
A 52-year-old woman presented with pain, decreased visual acuity, decreased color vision, and visual field loss in the OD. Fundus examination revealed optic disc edema and later a macular star figure consistent with neuroretinitis. Magnetic resonance imaging showed enhancement of the orbital optic nerve sheath and perineural fat suggestive of optic perineuritis. The patient was not treated. At 11 months, visual function and fundus examination had returned to normal. This unusual simultaneous occurrence of neuroretinitis and optic perineuritis suggests that these two entities may have a similar pathogenesis.
