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- Title
Delayed Optic Nerve Decompression for Indirect Optic Nerve Injury.
- Authors
Thakar, A.; Mahapatra, A. K.; Tandon, D. A.
- Abstract
Objective To test the efficacy of delayed optic nerve decompression in traumatic optic nerve injury. Study Design Critical analysis of Proforma-based, prospectively accrued data of all cases with injury to surgery interval of greater than 2 weeks. Methods Thirty-five cases with a median injury to surgery interval of 56 days (range, 16-374 d). Surgical decompression was undertaken only in cases that continued to have poor vision after treatment with steroids in conventional doses (1 mg/kg prednisolone). Pre- and postoperative visual acuity measurements were converted to the logMAR scale of visual acuity and the percentage of visual improvement was calculated. Results Surgery was universally unrewarding in all 9 cases with persistent and complete blindness of greater than 2 weeks and no response to steroid therapy. Of the cases with some residual vision, 20 of 26 cases improved (mean percentage improvement, 41.0 ± 5.7%). Cases were categorized on the basis of the injury to surgery interval into groups of 2 weeks to 2 months, 2 months to 4 months, and greater than 4 months. No significant difference was demonstrated in the probability or quantum of improvement in these groups ( P = .97). Conclusions Optic nerve decompression remains useful as a salvage procedure for conventional dose steroid failed cases of traumatic optic neuropathy. In cases that are not completely blind, vision can be improved even when surgery is undertaken a few months after the injury.
- Publication
Laryngoscope, 2003, Vol 113, Issue 1, p112
- ISSN
0023-852X
- Publication type
Article
- DOI
10.1097/00005537-200301000-00021