REFERENCES
1. Ropposch T, Steger B, Meco C, et al. The effect of steroids in combination with optic nerve decompression surgery in traumatic optic neuropathy. Laryngoscope . 2013;123:1082–1086.
2. Yu-Wai-Man P, Griffiths PG. Steroids for traumatic optic neuropathy.Cochrane Database Syst Rev . 2007 ;( 4):CD006032.
3. Luxenberger W, Stammberger H, Jebeles JA, Walch C. Endoscopic optic nerve decompression: the Graz experience. Laryngoscope . 1998; 108:873–882.
4. R. L. Anderson, W. R. Panje, and C. E. Gross, “Optic nerve blindness following blunt forehead trauma,” Ophthalmology , vol. 89, no. 5, pp. 445–455, 1982.
5. I. Kallela, T. Hyrkas, P. Paukku, T. Iizuka, and C. Lindqvist, “Blindness after maxillofacial blunt trauma. Evaluation of candidates for optic nerve decompression surgery,” Journal of
Cranio-Maxillo-Facial Surgery , vol. 22, no. 4, pp. 220–225, 1994.
6. Yu B, Ma Y, Tu Y, Wu W. The outcome of endoscopic transethmosphenoid optic canal decompression for indirect traumatic optic neuropathy with no-light-perception. J Ophthalmol.
2016;2016:6492858.
7. Yu B, Chen Y, Ma Y, Tu Y, Wu W. Outcome of endoscopic transethmosphenoid
optic canal decompression for indirect traumatic optic neuropathy in children. BMC Ophthalmol. 2018; 18(1):152. https://doi.org/10.1186/s12886-018-0792-4.
8. Tang R, Li H, Regner V, Bridges MB, Prager TC (1986) Traumatic optic neuropathy: Analysis of 37 cases. Invest Ophthalmol Vis Sci 27(suppl):102
9. Joseph MP, Lessell S, Rizzo I, Momose KI (1990) Extracranial optic nerve decompression for traumatic optic neuropathy. Arch Opthalmol 108:1091–1093
10. Kilian Schulze-Bonsel, Nicolas Feltgen, Hermann Burau, Lutz Hansen, Michael Bach; Visual Acuities “Hand Motion” and “Counting Fingers” Can Be Quantified with the Freiburg Visual Acuity Test. Invest. Ophthalmol. Vis.
11. Seiff SR. Trauma and the optic nerve. Ophthalmol Clin North Am 1992;5(3):389-94.
Sci.  2006; 47(3):1236-1240. doi: https://doi.org/10.1167/iovs.05-0981.
12. Dhaliwal SS, Sowerby LJ, Rotenberg BW. Timing of endoscopic surgical decompression in traumatic optic neuropathy: a systematic review of the literature. Int Forum Allergy Rhinol . 2016; 6:661-667.
13. Mabuchi F, Aihara M, Mackey MR, Lindsey JD, Weinreb RN. Optic nerve damage in experimental mouse ocular hypertension. Invest Ophthalmol Vis Sci. 2003;44:4321–30.
14. Levin LA. Intrinsic survival mechanisms for retinal ganglion cells. Eur J Ophthalmol. 1999; 9(Suppl. I):12–6.
15. Wang EW, Zanation AM, Gardner PA, et al. ICAR: endoscopic skull-base surgery. Int Forum Allergy Rhinol . 2019;9:S145–S365. https://doi.org/10.1002/alr.22326
16. LuxenbergerW, Stammberger H, Jebeles JA,Walch C. Endoscopic optic nerve decompression: the Graz experience. Laryngoscope. 1998; 108:873–82
17. Wang DH, Zheng CQ, Qian J, Barr JJ, Anderson AG Jr. Endoscopic optic nerve decompression for the treatment of traumatic optic nerve neuropathy. ORL J Otorhinolaryngol Relat Spec . 2008; 70:130-133.
18. Rajiniganth MG, Gupta AK, Gupta A, Bapuraj JR. Traumatic optic neuropathy: visual outcome following combined therapy protocol.Arch Otolaryngol Head Neck Surg . 2003;129:1203-1206.
19. Jiang RS, Hsu CY, Shen BH. Endoscopic optic nerve decompression for the treatment of traumatic optic neuropathy. Rhinology . 2001; 39:71-74.
20. Kountakis SE, Maillard AA, El-Harazi SM, Longhini L, Urso RG. Endoscopic optic nerve decompression for traumatic blindness.Otolaryngol Head Neck Surg . 2000;123(1 Pt 1):34-37.
21. Nayak SR, Kirtane MV, Ingle MV. Transethmoid decompression of the optic nerve in head injuries: an update. J Laryngol Otol . 1991;105:205-206.
22. Emanuelli E, Bignami M, Digilio E, Fusetti S, Volo T, Castelnuovo P. Post-traumatic optic neuropathy: our surgical and medical protocol.Eur Arch Otorhinolaryngol . 2015; 272:3301-3309.
23. Hameed AS, Nampoothiri PM, Joseph B. A prospective study on outcome of endoscopic optic nerve decompression for visual loss after cranioorbital trauma. Journal of Evidence Based Medicineand Healthcare . 2014; 1:696-702.
24. Xu R, Chen F, Zuo K, et al. Endoscopic optic nerve decompression for patients with traumatic optic .1002/alr.22326 neuropathy: is nerve sheath incision necessary?
ORL J Otorhinolaryngol Relat Spec . 2014; 76:44-49.
25. Song Y, Li H, Ma Y, et al. Analysis of prognostic factors of endoscopic optic nerve decompression in traumatic blindness. Acta Otolaryngol . 2013;133:1196-1200.
26. Yang QT, Zhang GH, Liu X, Ye J, Li Y. The therapeutic efficacy of endoscopic optic nerve decompression and its effects on the prognoses of 96 cases of traumatic optic neuropathy. J Trauma Acute Care Surg . 2012; 72:1350-1355.
27. Peng A, Li Y, Hu P, Wang Q. Endoscopic optic nerve decompression for traumatic optic neuropathy in children. Int J Pediatr Otorhinolaryngol . 2011; 75:992-998.
28. Thaker A, Tandon DA, Mahapatra AK. Surgery for optic nerve injury: should nerve sheath incision supplement osseous decompression?Skull Base . 2009; 19:263-271.
29. Li H, Zhou B, Shi J, Cheng L, Wen W, Xu G. Treatment of traumatic optic neuropathy: our experience of endoscopic optic nerve decompression. J Laryngol Otol . 2008;122:1325-1329.
30. Volk GF, Pantel M, Guntinas-Lichius O. Modern concepts in facial nerve reconstruction. Head Face Med . 2010; 6:25. Published 2010 Nov 1. doi: 10.1186/1746-160X-6-25
31. Steinsapir KD,Goldberg RA. Traumatic optic neuropathy: an evolving understanding. Am J Ophthalmol 2011; 151(06):928–933.e2 skull-base surgery. Int Forum Allergy Rhinol . 2019; 9:S145–S365.
Figure legends
Figure 1: CT scans of patient with bilateral traumatic optic neuropathy: A) Black arrow showing a fracture involving right bony optic canal in the sphenoid sinus. B) Yellow arrow showing fracture segment impinging on intraorbital portion of the left optic nerve
Figure 2: Decompressed optic nerve (Blue arrow), lateral optic carotid recess (yellow star), and exposed dura (black arrow)
Figure 3: Nerve sheath incision (black arrow) placed horizontally along the inferomedial aspect of optic nerve, orbital apex (green arrow), annulus of Zinn (blue star)