Choroidal and Retinal Thickness in myopic Children Measured by Swept-Source Optical Coherence Tomography
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PURPOSE: To investigate the choroidal and retinal thickness in myopic children by swept-source longer-wavelength optical coherence tomography.
DESIGN: Cross-sectional study.
METHODS:
150 schoolchildren aged 7-18 years underwent comprehensive ophthalmic examinations, including cycloplegic refraction, and swept-source optical coherence tomography measurements. The thickness of the choroid, retina and nerve fiber layer were compared among children of different age groups. The topographic variation and factors related to the thickness of the choroid and retinal layers were analyzed.
RESULTS:. Compared to emmetropic subjects, those with myopia had a significantly thinner choroid in all regions (P < .01), and emetropic subjects had a thicker choroid in most regions (P < .05). The myopic retinas were thinner than those of emmetropic subjects in the superior parafoveal and all 4 perifoveal subfields. The axial length and refractive diopters were independently related to central foveal choroidal thickness, while age and intraocular pressure were independently associated with central fovea retinal thicknesses
CONCLUSIONS: Choroidal thickness, correlated closely with axial length and refractive diopters in myopic children. The retinal thickness of participants with myopia were lower than in those with emmetropia in the superior parafoveal and in both the superior and inferior perifoveal subfields.
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