Abstract
Purpose
To report a case of orbital apex syndrome (OAS) combined with central retinal artery occlusion (CRAO) and central retinal vein occlusion (CRVO) following blunt trauma.
Case summary
A 4-year-old female visited the hospital following a traffic accident. She was admitted because of multiple fractures of the skull and pneumocephalus. On day 5, she was referred to us with decreased visual acuity in her right eye. Her initial visual acuity was hand motions in the right eye and 0.8 in the left eye. The right eye showed a dilated pupil, ptosis, and total ophthalmoplegia, and the left eye showed limited abduction. A fundus examination revealed multiple retinal hemorrhages, tortuous veins, and an edematous white retina with a cherry-red spot in the right eye. Brain magnetic resonance imaging revealed an entrapped right optic nerve because of bony fragments in the orbital apex. The patient was diagnosed with OAS accompanied by CRAO and CRVO in the right eye, and with traumatic abducens nerve palsy in the left eye. After 6 months, the visual acuity was hand motions, and the fundus examination showed absorbed retinal hemorrhages, pale discs, and general retinal thinning of the right eye. Ptosis of the right eye and extraocular muscle movement of both eyes were improved.
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Figure 1.
Wide field fundus photography (WFP) and optical coherence tomography (OCT) image on initial presentation. (A) WFP after two weeks of trauma shows pseudo-cherry red spot and multiple retinal hemorrhages near the optic disc in the right eye. (B) The normal WFP image of the left eye. (C) OCT image of the right eye revealed severe inner retinal edema. (D) The normal OCT image of the left eye.
![jkos-59-295f1.tif](/upload/SynapseXML/0035jkos/thumb/jkos-59-295f1.gif)
Figure 2.
Fields of gaze of extraocular movement. (A) Initial examination shows limitation of movement in all directions in the right eye. Ptosis of the right upper eyelid and abduction limitation of the left eye are also noted. (B) At 6 months after trauma, ptosis of the right upper eyelid was improved. The extraocular muscle movements of both eyes were also improved. However, abduction of the right eye was still limited.
![jkos-59-295f2.tif](/upload/SynapseXML/0035jkos/thumb/jkos-59-295f2.gif)
Figure 3.
Computed tomography (CT) image and magnetic resonance imaging (MRI) on initial presentation. (A) Axial CT scan demonstrates multiple fractures including orbital apex of the right eye and skull base. (B) Axial MRI (T2 weighted image) scan on 7 days after trauma shows bony fragments (dotted arrow) and hematoma (solid arrow) along the optic nerve pathway. (C) Sagittal MRI (T1 weighted image) scan reveals entrapped and stretched optic nerve of the right eye (solid arrow) because of bony fragments (dotted arrow).
![jkos-59-295f3.tif](/upload/SynapseXML/0035jkos/thumb/jkos-59-295f3.gif)