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      Comparison of choroidal thickness in patients with active and stable thyroid eye disease Translated title: Comparação da espessura da coroide em pacientes com doença ocular tireoidiana ativa e estável

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          Abstract

          ABSTRACT Purpose: To compare the choroidal thickness in active and stable phases of thyroid eye disease. Methods: Forty-seven eyes of 47 patients with thyroid eye disease were prospectively studied. Patients were evaluated on the basis of their clinical activity scores, with scores 33 defined as active disease. Subfoveal, temporal macular, nasal macular, temporal peripapillary, and nasal peripapillary choroidal thickness measurements were performed with Cirrus enhanced depth imaging spectral-domain optical coherence tomography, and the results in the two groups were compared. Results: Twenty-four patients were int he active group, whereas 23 patients were in the stable group. Choroidal thickness was significantly higher in the subfoveal and temporal macular regions in the active group. Although the nasal macular and peripapillary values were also higher in the active group, the difference was insignificant. Conclusions: Subfoveal choroidal thickness was significantly higher in patients with thyroid eye disease in the active phase than in those with stable phase disease.

          Translated abstract

          RESUMO Objetivo: Comparar a espessura da coroide nas fases ativa e estável da doença ocular tireoidiana. Métodos: Quarenta e sete olhos, de 47 pacientes com doença ocular tireoidiana foram estudados prospectivamente. Os pacientes foram avaliados com base em seus escores de atividade clínica, com escore de 33 definidos como doença ativa. As medidas subfoveais, maculares temporais, maculares nasais, peripapilares temporais e da espessura da coroide peripapilar foram realizadas com tomografia de coerência óptica de domínio espectral Cirrus EDI, e os resultados nos dois grupos foram comparados. Resultados: Vinte e quarto pacientes estavam no grupo ativo, enquanto 23 pacientes estavam no grupo estável. A espessura da coroide foi significativamente maior nas regiões macular subfoveal e temporal no grupo ativo. Embora os valores maculares e peripapilares nasais também fossem maiores no grupo ativo, a diferença foi insignificante. Conclusões: A espessura da coroide subfoveal foi significativamente maior em pacientes com doença ocular tireoidiana na fase ativa do que naqueles com doença na fase estável.

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          Graves' ophthalmopathy.

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            A pilot study of enhanced depth imaging optical coherence tomography of the choroid in normal eyes.

            To measure macular choroidal thickness in normal eyes at different points using enhanced depth imaging (EDI) optical coherence tomography (OCT) and to evaluate the association of choroidal thickness and age. Retrospective, observational case series. EDI OCT images were obtained in patients without significant retinal or choroidal pathologic features. The images were obtained by positioning a spectral-domain OCT device close enough to the eye to acquire an inverted image. Seven sections were obtained within a 5 x 30-degree area centered at the fovea, with 100 scans averaged for each section. The choroid was measured from the outer border of the retinal pigment epithelium to the inner scleral border at 500-microm intervals of a horizontal section from 3 mm temporal to the fovea to 3 mm nasal to the fovea. Statistical analysis was performed to evaluate variations of choroidal thickness at each location and to correlate choroidal thickness and patient age. The mean age of the 30 patients (54 eyes) was 50.4 years (range, 19 to 85 years), and 14 patients (46.7%) were female. The choroid was thickest underneath the fovea (mean, 287 microm; standard deviation, +/- 76 microm). Choroidal thickness decreased rapidly in the nasal direction and averaged 145 microm (+/- 57 microm) at 3 mm nasal to the fovea. Increasing age was correlated significantly with decreasing choroidal thickness at all points measured. Regression analysis suggested that the subfoveal choroidal thickness decreased by 15.6 microm for each decade of life. Choroidal thickness seems to vary topographically within the posterior pole. The thickness of the choroid showed a negative correlation with age. The decrease in the thickness of the choroid may play a role in the pathophysiologic features of various age-related ocular conditions.
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              Enhanced depth imaging optical coherence tomography of the choroid in highly myopic eyes.

              To measure macular choroidal thickness (CT) in highly myopic eyes using enhanced depth imaging optical coherence tomography (OCT). Retrospective, observational case series. Enhanced depth imaging OCT images were obtained in highly myopic eyes (> or =6 diopters [D]). Images of CT were obtained by positioning a spectral-domain OCT device close enough to the eye to acquire an inverted image. CT was measured from the outer border of the retinal pigment epithelium to the inner scleral border at 1000-mum intervals of a horizontal section from 3 mm temporal to the fovea to 3 mm nasal to the fovea. Statistical analysis was performed to evaluate CT at each location and to correlate CT with age and refractive error. The mean age of the 31 patients (55 eyes) was 59.7 years (+/- 17.6 years; range, 24 to 90 years), and the mean refractive error was -11.9 D (+/- 3.7 D). The mean subfoveal CT was 93.2 microm (+/- 62.5 microm) and was correlated negatively with age (P = .006), refractive error (P < .001), and history of choroidal neovascularization (P = .013). Regression analysis suggested that subfoveal CT decreased by 12.7 mum for each decade of life and by 8.7 microm for each D of myopia. The choroid in highly myopic eyes is very thin and undergoes further thinning with increasing age and degree of myopia. Abnormalities of the choroid may play a role in the pathogenesis of myopic degeneration.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                abo
                Arquivos Brasileiros de Oftalmologia
                Arq. Bras. Oftalmol.
                Conselho Brasileiro de Oftalmologia (São Paulo, SP, Brazil )
                0004-2749
                1678-2925
                January 2019
                : 82
                : 2
                : 124-128
                Affiliations
                [1] Samsun orgnameOndokuz Mayis University orgdiv1Ophthalmology Department Turkey
                Article
                S0004-27492019000200124
                10.5935/0004-2749.20190019
                30726403
                d6645862-b2f9-43d3-b002-1a720e97a16b

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 06 February 2018
                : 22 June 2018
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 21, Pages: 5
                Product

                SciELO Brazil

                Categories
                Original Articles

                Oftalmopatia de Graves,Coroide/anatomia & his to logia,Tomografia de coerência óptica,Graves ophthalmopathy,Choroid/anatomy & histology,Tomography, optical coherence

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