Inferior rectus muscle palsy with constant diplopia following orbito-facial trauma

Abstract

Aim: To present the management and outcome of a case of severe orbito-facial trauma secondary to an angle grinder injury that resulted in an isolated inferior rectus palsy, orbital soft tissue sequelae and constant diplopia. Methods and results: A functionally useful field of binocular single vision (BSV score = 45%) centred around the primary position was achieved following three surgical procedures and much interdisciplinary communication during surgical planning and rehabilitation. Conclusion: The resolution of constant diplopia coupled with a reduced, central field of BSV sufficient to enable daily living activities may be a ‘best’ outcome and potentially achievable goal in similar trauma-associated strabismus entities.

Keywords

• Angle grinder injury
• Faden operation
• Inferior rectus trauma
• Inverse Knapp procedure
• Orbital fracture