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Macular thickness decreases with age in normal eyes: A study on the macular thickness map protocol in the Stratus OCT
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Ophthalmology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Ophthalmology.
2008 (English)In: British Journal of Ophthalmology, ISSN 0007-1161, E-ISSN 1468-2079, Vol. 93, no 11, p. 1148-1452Article in journal (Refereed) Published
Abstract [en]

BACKGROUND/AIM: Retinal and retinal nerve fibre layer (RNFL) thinning with age have been described in histological studies. In vivo techniques like optical coherence tomography (OCT), has shown thinning of optic nerve RNFL and the retina in specific areas. One would expect thinning of the total macula, but so far, a correlation with the quantitative OCT macular map tool and age has not been found. METHODS: Sixty-seven healthy individuals underwent three repeated scans in both eyes with the macular thickness map protocol in the Stratus OCT. That protocol divides the macula area in nine ETDRS fields.The RNFL was measured in one specific location close to the optic disc. Correlations between retinal, RNFL thickness, macular volume and age were determined. RESULTS: We found a statistically significant negative relationship between retinal thickness and age for all ETDRS areas, total macular volume and RNFL thickness. Retinal thickness decreased with 0,26-0,46 microm, the macula volume 0,01 mm(3) and RNFL with 0,09 microm per year. CONCLUSION: Retinal thickness within the area covered by the macular map significantly decreases with age. In the area examined in the papillomacular bundle, 20% of the retinal thinning is due to the RNFL and 80% due to thinning of other layers of the retina.

Place, publisher, year, edition, pages
2008. Vol. 93, no 11, p. 1148-1452
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-104910DOI: 10.1136/bjo.2007.131094ISI: 000271091900009PubMedID: 19019921OAI: oai:DiVA.org:uu-104910DiVA, id: diva2:220274
Available from: 2009-05-30 Created: 2009-05-30 Last updated: 2022-01-28Bibliographically approved
In thesis
1. Aspects of Optical Coherence Tomography (OCT) in Healthy Eyes and Eyes with Retinal Diseases
Open this publication in new window or tab >>Aspects of Optical Coherence Tomography (OCT) in Healthy Eyes and Eyes with Retinal Diseases
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Optical coherence tomography (OCT) is a technique in which cross-sectional images from intraocular tissue can be obtained. The quantitative and qualitative examinations are used for evaluating retinal diseases. Conventional OCT (Stratus) is mainly used, but the new Spectral domain (Cirrus) OCT, which has improved technology, may provide more reliable measurements.

The aim of the study was to collect normal values of macular thickness in children and adults and to evaluate the effect of age and/or gender, to compare measurement variability in healthy eyes and eyes with age-related macular degeneration (AMD), to compare Stratus and Cirrus OCT and to study the effect of cataract surgery on macula.

Sixty-seven healthy adults and 56 children, 30 patients with AMD, 34 patients with diabetes and cataract and 35 healthy controls were included. The quantitative maps in Stratus and Cirrus were used and manual correction of foveal location was evaluated. Qualitative OCT was compared to fluorescein angiography (FA) after cataract surgery.

The mean values of macular thickness in Stratus OCT were 207µm in adults and 204 µm in children. The measurement variability was low. Macular thickness decreased with age in adults, but not in children. No correlation with gender was found. In eyes with wet AMD, there were small differences in measurement variability comparing Stratus and Cirrus OCT. After manual correction in Cirrus OCT, the coefficients of repeatability were improved to values close to the repeatability in normal eyes. Two thirds of the diabetic and half of the control eyes showed leakage on FA after cataract surgery. Qualitative OCT corresponded poorly to FA in diabetic eyes. A thicker macula, assessed with OCT, was often observed without any obvious effect on visual acuity.  OCT was as good as FA in revealing clinically relevant changes in macula after surgery, and was the technique recommended for follow-up.

Place, publisher, year, edition, pages
Uppsala: Acta Universitas Upsaliensis, 2010. p. 53
Series
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 580
National Category
Ophthalmology
Research subject
Ophtalmology
Identifiers
urn:nbn:se:uu:diva-129163 (URN)978-91-554-7851-3 (ISBN)
Public defence
2010-09-17, Grönwallsalen, Akademiska sjukhuset, entrance 70, ground floor, 75185, Uppsala, 13:00 (Swedish)
Opponent
Supervisors
Available from: 2010-08-27 Created: 2010-08-05 Last updated: 2012-11-20

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