Optic nerve hypoplasia in North America: a re-appraisal of perinatal risk factors
نویسندگان
چکیده
منابع مشابه
Optic nerve hypoplasia in North America: a re-appraisal of perinatal risk factors.
PURPOSE The purpose of this study is to describe and clarify the birth and prenatal characteristics of a large cohort of children with optic nerve hypoplasia. METHODS This is a descriptive report of 204 patients aged </= 36 months and enrolled in a prospective study at the Children's Hospital Los Angeles. Birth characteristics, including complications, were abstracted from study files and med...
متن کاملOptic nerve hypoplasia: Risk factors and epidemiology.
OBJECTIVES To study the epidemiology of optic nerve hypoplasia. DESIGN AND METHODS Children with optic nerve hypoplasia and visual impairment were identified through the Swedish Register of Visually Impaired Children. Pre- and perinatal characteristics were obtained from the Medical Birth Registry and by scrutinizing pregnancy and delivery records. Clinical characteristics of children with op...
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Background: Perinatal mortality rate is an important indicator of community health status. This study aimed to evaluate perinatal mortality and its determinants in Mobini Hospital of Sabzevar, Iran. Methods: This descriptive, cross-sectional study was performed within a two-year (2011-2012) period at Mobini Hospital of Sabzevar. Our study population included all the cases of stillbirth and liv...
متن کاملOptic Nerve Hypoplasia
Congenital anomalies of the optic disc underlie many cases of decreased vision, strabismus, and nystagmus in childhood. A comprehensive evaluation necessitates an understanding of the ophthalmoscopic features, associated neuro-ophthalmologic findings, pathogenesis, and appropriate ancillary studies for each anomaly. The subclassification of different forms of “colobomatous” defects on the basis...
متن کاملSpectrum of optic nerve hypoplasia.
Optic nerve hypoplasia is a non-progressive condition characterised by subnormal vision and a subnormal number of optic nerve axons. It may be unilateral or bilateral, isolated or combined with other defects. Analysis of fundus photographs from a series of 7 patients with a stationary abnormality of different degrees showed that the functional defects could be closely correlated with defects in...
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ژورنال
عنوان ژورنال: Acta Ophthalmologica
سال: 2009
ISSN: 1755-375X,1755-3768
DOI: 10.1111/j.1755-3768.2008.01450.x