Orbital bands in Gomez-Lopez-Hernandez syndrome.

Abstract

O rbital bands are anomalous muscle tissue connections between recti muscles or between a rectus muscle and the globe. Also known as supernumerary extraocular muscles, they have been identified by magnetic resonance imaging in 0.8% of orthotropic and 2.4% of strabismic patients. Gomez-LopezHernandez syndrome (OMIM 601853) is a rare sporadic syndrome reported in only 27 patients worldwide to date. This syndrome, also known as cerebellotrigeminal dermal dysplasia, has not received any attention in the ophthalmic literature. The characteristic triad is rhombencephalosynapsis, trigeminal anesthesia, and bilateral alopecia in the parietal or parieto-occipital regions. Additional features are listed in the Table.