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. 2020 May 25;68(6):974–980. doi: 10.4103/ijo.IJO_1415_20

Table 5.

Risk classification of orbital surgeries

Level A Level B Level C
1. Canthotomy and cantholysis for sight-threatening orbital haemorrhage.
2. Drainage of an orbital or periorbital abscess.
3. Exenteration for life-threatening infection or malignancy.
4. Orbital biopsy (incisional or excisional) for life or sight-threatening conditions.
5. Repair of orbital and other facial fractures fracture in presence of oculo-cardiac reflex.
6. Evisceration/Enucleation for severe unsalvageable globe trauma, untreatable infection, malignancy.
1. Optic nerve sheath fenestration for progressive visual loss.
2. Orbitotomy for malignancy or sight threatening tumour/other lesions.
3. Thyroid Eye Disease: Orbital decompression in case of optic neuropathy or uncontrolled orbital congestion.
4. Orbital fracture repair with symptomatic residual entrapment.
5. Plaque brachytherapy.
1. Orbital decompression for cosmetic rehabilitation.
2. Socket Reconstruction.