Introduction: Ocular globe injuries are a primary cause of vision loss, particularly among young, professionally active men. Scleral wounds extending beneath the extraocular muscles represent one of the most challenging penetrating injuries of the posterior segment. Ensuring adequate exposure is essential for restoring ocular integrity in such cases. Case report: A 43-year-old male presented with blunt trauma to the right eye caused by a metal rod, resulting in light perception vision and massive hemorrhagic chemosis. Imaging revealed a 3-cm scleral laceration, vitreous hemorrhage, and a complete funnel-shaped retinal detachment. Due to the wound's location, the superior and lateral rectus muscles were temporarily detached (tenotomy) to allow for a tightly sealed closure with thirty-five sutures. The procedure was followed by phacoaspiration of a traumatic cataract, 360° retinotomy, removal of a subretinal clot, and pars plana vitrectomy with silicone oil endotamponade. Results: Anatomical success was achieved with a fully reattached retina. While the Ocular Trauma Score placed the patient in Category I (poor functional prognosis), his visual acuity improved from light perception to 2/50 two weeks postoperatively. Optical coherence tomography confirmed the anatomical reattachment but showed residual subretinal fluid and ellipsoid zone disruption, explaining the limited functional recovery. Conclusions: Temporary tenotomy of the extraocular muscles is an effective technique for providing necessary exposure to repair extensive posterior scleral wounds. Even in cases with an unfavorable initial prognosis, early diagnosis and comprehensive surgical intervention can preserve the anatomical integrity of the eye and allow for partial visual improvement.