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A population-based study of macular thickness in full-term children assessed with Stratus OCT: normative data and repeatability.
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.
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.
2009 (English)In: Acta ophthalmologica, ISSN 1755-3768, Vol. 87, no 7, p. 741-745Article in journal (Refereed) Published
Abstract [en]

Purpose: We aimed to determine normal macular thickness values, assessed with optical coherence tomography (OCT), in a population of full-term children of normal birthweight. Methods: A total of 56 children, aged 5-16 years, randomly chosen from the population register, were examined with Stratus OCT. Only children with visual acuity < 0.2 logMAR, spherical equivalent of - 3 to + 3 D and astigmatism < 2 D were included. The fast macular map protocol was used and three examinations were performed in each eye. One eye was then randomized for further analyses. Mean values for the nine ETDRS areas, foveal minimum thickness and macular volume were calculated for 55 eyes. Coefficients of variance and intraclass correlations were calculated for each area. Results: All children co-operated well and no child was excluded for lack of concentration. Mean +/- standard deviation central macular thickness was 204 +/- 19 mum. Mean total macular volume was 7.11 +/- 0.35 mm(3). No correlations were found between age, gender and macular thickness. Coefficients of variance were < 2% and intraclass correlations were > 0.9 in all areas, except the foveal minimum. Conclusions: Normal values for macular thickness in healthy full-term children were reported. As the Stratus OCT provides normal values only for adults, these data are a better alternative for comparison with children with retinal abnormalities. We concluded that OCT is suitable for examining the retina in children aged 5-16 years and has the same high level of repeatability as in adults.

Place, publisher, year, edition, pages
2009. Vol. 87, no 7, p. 741-745
Keywords [en]
children, full-term, macular thickness, optical coherence tomography (OCT), repeatability
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-104400DOI: 10.1111/j.1755-3768.2008.01357.xISI: 000270999300009PubMedID: 18811639OAI: oai:DiVA.org:uu-104400DiVA, id: diva2:220273
Available from: 2009-05-30 Created: 2009-05-28 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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