American journal of ophthalmology case reports · 2024
Long-term follow-up of a patient with partial optic nerve avulsion associated with submacular hemorrhage who underwent pneumatic displacement.
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Bayram-Suverza Mauricio, Rosano-Barragán Mauricio, Ramírez-Estudillo Juan Abel
Аннотация
PURPOSE: We report the case of a 16-year-old boy with partial optic nerve avulsion (ONA) and submacular hemorrhage (SMH) resulting from blunt ocular trauma who underwent pneumatic displacement and subsequent monitoring with optical coherence tomography (OCT) and fundus photography.
OBSERVATIONS: Reduced visual acuity was observed in the right eye at presentation (20/2400). Vitreous hemorrhage, partial ONA, and SMH were observed during dilated fundus examination. SMH was managed via pneumatic displacement. Subsequent examination revealed improvement in the visual acuity of the right eye with a substantial reduction in the subfoveal hemorrhage. Further improvement in visual acuity was observed 6 months after the injury (20/150). A smaller optic nerve head excavation defect, foveal atrophy, and reabsorption of SMH were observed during fundus examination. OCT of the optic nerve revealed that glial growth had covered the avulsion excavation. However, atrophy of the outer retinal layer of the fovea was observed during macular OCT.
CONCLUSIONS AND IMPORTANCE: This case emphasizes the importance of performing multimodal imaging in cases of ONA as it enables the identification of alterations in the retinal layers and optic nerve. The subretinal hemorrhage was displaced from the subfoveal region without any adverse effects.
OBSERVATIONS: Reduced visual acuity was observed in the right eye at presentation (20/2400). Vitreous hemorrhage, partial ONA, and SMH were observed during dilated fundus examination. SMH was managed via pneumatic displacement. Subsequent examination revealed improvement in the visual acuity of the right eye with a substantial reduction in the subfoveal hemorrhage. Further improvement in visual acuity was observed 6 months after the injury (20/150). A smaller optic nerve head excavation defect, foveal atrophy, and reabsorption of SMH were observed during fundus examination. OCT of the optic nerve revealed that glial growth had covered the avulsion excavation. However, atrophy of the outer retinal layer of the fovea was observed during macular OCT.
CONCLUSIONS AND IMPORTANCE: This case emphasizes the importance of performing multimodal imaging in cases of ONA as it enables the identification of alterations in the retinal layers and optic nerve. The subretinal hemorrhage was displaced from the subfoveal region without any adverse effects.