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KMID : 1151620170020020101
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Journal of Retina
2017 Volume.2 No. 2 p.101 ~ p.104
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Optical Coherence Tomography Angiography Findings in Isolated Foveal Hypoplasia
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Kwon Han-Jo
Lee Jae-Jung
Park Sung-Who
Lee Ji-Eun
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Abstract
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Purpose: To describe optical coherence tomography angiography (OCTA) findings in two cases of isolated foveal hypoplasia.
Case summary: (Case 1) An eight-year-old girl presented with amblyopia and exotropia. Optical coherence tomography demonstrated no central concavity in the foveal area with inner retinal layers present. OCTA revealed that lower central retinal vessel density was lower than peripheral retinal vessel density in the deep vascular plexus but not in the superficial plexus. (Case 2) A 14-year-old boy presented with absence of foveal reflex in both eyes. On OCTA, retinal vessel density of the superficial plexus was similar throughout the macula, while lower retinal vessel density was noted in the foveal region than in the parafoveal region of the deep plexus.
Conclusions: OCTA is useful for characterizing foveal hypoplasia. Furthermore, the disparity between deep and superficial retinal vessel density supports the theory of arrested foveal development, in which displacement of deep retinal tissue precedes inner retinal displacement.
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KEYWORD
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Foveal development, Foveal hypoplasia, Optical coherence tomography angiography, Retinal vessel density
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