Ophthalmic Assessment in Isolated Orbital Fractures: Identifying Patients at Risk

Abstract

Isolated orbital fractures are frequently approached as injuries of facial skeleton and orbital volume, yet their most consequential morbidity often lies in concurrent ocular and optic nerve injury. Although many patients have only minor adnexal or conjunctival findings, a clinically important minority harbour vision-threatening pathology that requires urgent ophthalmic intervention. The central challenge in acute care is therefore not simply to confirm the fracture, but to distinguish the patient who can be safely observed from the patient whose examination or imaging suggests occult severe injury. This review synthesises contemporary evidence on the ophthalmic assessment of isolated orbital fractures, with particular attention to predictors of substantial ocular injury, the strengths and limitations of bedside examination, and the integration of clinical and radiological findings into risk stratification. A narrative review was conducted using PubMed, Web of Science, Scopus, and Google Scholar. Searches were conducted since January 2006, with emphasis on studies from 2015 onward and inclusion of a small number of earlier landmark articles where they remained influential in current practice. The literature consistently identifies reduced visual acuity, abnormal pupillary responses, afferent pupillary defect, primary-gaze diplopia, ocular pain, conjunctival haemorrhage or chemosis, inability to open the injured eye, retrobulbar haemorrhage, and selected fracture patterns as features that should elevate concern. At the same time, recent protocol-based studies suggest that routine urgent ophthalmology consultation for every isolated orbital fracture may not be necessary when a patient is truly asymptomatic and carefully screened. The review argues for a structured, ophthalmically informed assessment pathway that begins with visual function and pupillary examination, incorporates targeted motility and anterior segment assessment, interprets computed tomography in a risk-based manner, and recognises specific contexts in which symptom-based triage is unreliable. Such an approach can improve patient safety, preserve visual outcomes, and reduce unnecessary emergency consultation without missing time-critical pathology.