To carry out an ophthalmological and detailed genetic investigation on a 7-year-old boy with isolated foveal hypoplasia. A full ophthalmological examination and optical coherence tomography (OCT) was performed. We also performed a full genome screen for chromosomal abnormalities, and searched for mutations in two genes (GPR143 and OCA2) known to be associated with ocular albinism and PAX6 gene known to be associated with aniridia. His eye examination was normal with no iris transillumination. A fundus examination, however, showed classic signs of foveal hypoplasia. A molecular genetic investigation showed no mutation(s) in all genes screened and no chromosomal deletion(s) and/or duplication(s) were detected. We report a case of isolated foveal hypoplasia where the underlying genetic cause could not be established. We could not rule out other genetic or epigenetic factors contributing to the pathogenesis of isolated foveal hypoplasia.
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