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Retinal thickness in patients with mild cognitive impairment and Alzheimer's disease.
MedLine Citation:
PMID:  21454010     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVES: Mild cognitive impairment (MCI) may represent a transition to early Alzheimer's disease (AD). The retinal nerve fiber layer (RNFL) is composed of axons originating in retinal ganglion cells that eventually form the optic nerves. Previous studies have shown that degenerative changes occur in optic nerve fibers and manifested as thinning of RNFL in patients with AD. The objective of this study was to assess the relationship between MCI, AD and loss of RNFL. PATIENTS AND METHODS: In this study, patients fulfilling diagnostic criteria for MCI (n=24), AD (n=30) and cognitively normal age-matched controls (n=24) have undergone neuro-ophthalmologic and optical coherence tomography (OCT) examinations to measure RNFL thickness. RESULTS: There was a significant decrease in RNFL thickness in both study groups (AD and MCI) compared to the control group, particularly in the inferior quadrants of the optic nerve head, while the superior quadrants were significantly thinner only in AD. Although AD patients may have more severe changes than MCI cases, the differences were statistically nonsignificant. Furthermore among AD patients, there was no relation to the severity of the dementia. CONCLUSIONS: Our data confirm the retinal involvement in AD, as reflected by loss of axons in the optic nerves.
Authors:
Anat Kesler; Veronika Vakhapova; Amos D Korczyn; Elvira Naftaliev; Meira Neudorfer
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-29
Journal Detail:
Title:  Clinical neurology and neurosurgery     Volume:  -     ISSN:  1872-6968     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-4-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7502039     Medline TA:  Clin Neurol Neurosurg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier B.V. All rights reserved.
Affiliation:
Neuro-ophthalmology Unit, Department of Ophthalmology, Tel Aviv Sourasky Medical Center, Weizman Str. 6, Tel Aviv, Israel.
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