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Optic disc measurements in full term infants.
MedLine Citation:
PMID:  22286069     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BackgroundThe objectives of this study were to measure optic disc size in full term infants and to determine whether this value is influenced by sex or birth weight.MethodsRetinal images from a cohort of full term infants admitted to a tertiary perinatal centre were obtained using a retinal camera. Optic disc size was measured by carefully delineating the outline with a cursor using image analysis software. MEDLINE was then systematically searched to compare the data with other published articles.Results35 images of left and right eyes from 35 infants were assessed. An image from one eye per patient was then chosen for analysis. The following results were found: mean birth weight 3050±706 g; mean gestation 38.9±1.4 weeks. Mean optic disc area was 1.26±0.23 mm(2); mean vertical diameter was 1.37±0.15 mm; and mean horizontal diameter was 1.14±0.12 mm. The vertical diameter of the optic disc was significantly longer than the horizontal diameter (p<0.0001).ConclusionBirth weight and sex did not influence the size of the optic disc in term infants. There were no differences in optic disc measurements between male and female infants and between low birth weight and normal birth weight infants.
Authors:
Yogavijayan Kandasamy; Roger Smith; Ian M R Wright; Leo Hartley
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-27
Journal Detail:
Title:  The British journal of ophthalmology     Volume:  -     ISSN:  1468-2079     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-1-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0421041     Medline TA:  Br J Ophthalmol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
The Townsville Hospital, Queensland, Australia.
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