ArticleJournal of Korean Neurosurgical Society2025
Importance of Preoperative Pupillary Reflex in Traumatic Optic Neuropathy.
Article in Journal of Korean Neurosurgical Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- The diagnostic significance of pupillary reflex pathways: insights from classical examination and advanced pupillometry.Frontiers in neuroscience · 2025Review
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Abstract
objectiveTraumatic optic neuropathy (TON) refers to a pathological condition caused by direct or indirect injury to the optic nerves. In the case of patients with traumatic brain injury, adequate vision evaluation is difficult in many cases due to altered mentality. In order to address this problem, we investigated preoperative pupillary light reflex in TON patients as a predictive factor of surgical outcomes after optic nerve decompression.
methodsFrom April 2020 to September 2022, we enrolled patients who were diagnosed with TON and underwent endoscopic optic nerve decompression at our institution. Vision and pupil reflex tests were performed by an ophthalmologist before and after surgery.
resultsSeven patients were enrolled. Their ages ranged from 9 to 78 years and all were male. Among the seven patients, the patient whose pupillary light reflex was sluggish with 6 mm-sized pupil and absent with 7 mm-sized pupil before surgery showed no improvement in vision. Patients with some response to direct reflex or contralateral indirect reflex testing preoperative showed vision improvement after operation.
conclusionDirect and indirect pupillary reflexes can be important factors determining treatment outcome for TON. In unconscious patients with a fracture involving the optic canal, timely surgical intervention based on pupillary reflex can prevent permanent loss of vision.
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