Changes in the Incidence of Eye Trauma Hospitalizations in the United States From 2001 Through 2014

Ocular injuries among patients with major trauma in England and Wales from 2004 to 2021

BACKGROUND

Ocular trauma is a significant cause of blindness and is often missed in polytrauma. No contemporary studies report eye injuries in the setting of severe trauma in the UK. We investigated ocular injury epidemiology and trends among patients suffering major trauma in England and Wales from 2004 to 2021.

METHODS

We conducted a retrospective study utilising the Trauma Audit and Research Network (TARN) registry. Major trauma cases with concomitant eye injuries were included. Major trauma was defined as Injury Severity Score >15. Ocular injuries included globe, cranial nerve II, III, IV, and VI, and tear duct injuries. Orbital fractures and adnexal and lid injuries were not included. Demographics, injury profiles, and outcomes were extracted. We report descriptive statistics and 3-yearly trends.

RESULTS

Of 287 267 major trauma cases, 2368 (0.82%) had ocular injuries: prevalence decreased from 1.87% to 0.66% over the 2004-2021 period (P < 0.0001). Males comprised 72.2% of ocular injury cases, median age was 34.5 years. The proportion of ocular injuries from road traffic collisions fell from 43.1% to 25.3% while fall-related injuries increased and predominated (37.6% in 2019/21). Concomitant head injury occurred in 86.6%. The most common site of ocular injury was the conjunctiva (29.3%). Compared to previous TARN data (1989-2004), retinal injuries were threefold more prevalent (5.9% vs 18.5%), while corneal injuries were less (31.0% vs 6.6%).

CONCLUSIONS

Whilst identifying eye injuries in major trauma is challenging, it appears ocular injury epidemiology in this setting has shifted, though overall prevalence is low. These findings may inform prevention strategies, guideline development and resource allocation.

Boraginaceae plant fragment as a foreign body in the lacrimal duct: Multidisciplinary diagnosis

Foreign bodies in the lacrimal drainage system pose a substantial challenge in clinical practice due to their potential morbidity and diverse origins. Many foreign bodies are inorganic; however, organic foreign bodies, although uncommon, present diagnostic challenges. We present the case of a 57-year-old woman who had epiphora in her right eye. Patient's physical examination suggested an obstruction in the nasolacrimal duct. An external dacryocystorhinostomy (DCR) was scheduled. The surgery uncovered a polyp-like intrasaccal structure, which was subsequently identified as an organic foreign body through a comprehensive histopathological examination. This case underscores the significance of precise histopathological evaluation, multidisciplinary collaboration, and meticulous assessment in the identification of uncommon intraorbital organic foreign bodies.

Association Between Socioeconomic Deprivation and Orbital Trauma in a Hospital-Based Population

PURPOSE

To examine the association between area-level socioeconomic deprivation and orbital trauma among emergency ophthalmology consults.

METHODS

We conducted a cross-sectional study using 5-year Epic data for all hospital-based ophthalmology consults at the University of Maryland Medical System, and the Distressed Communities Index (DCI) data for area-level socioeconomic deprivation. We ran multivariable logistic regression models adjusting for age to compute odds ratios (OR) and 95% confidence intervals (CI) for the association between the DCI quintile 5 distressed score and orbital trauma.

RESULTS

A total of 3,811 cases of acute emergency consults were identified, of whom 750 (19.7%) had orbital trauma and 2,386 (62.6%) had other traumatic ocular emergencies. The odds of orbital trauma among people living in a distressed community were 0.59 (95% CI 0.46-0.76) times the odds for those living in a prosperous community. Among White subjects, the odds of orbital trauma for people living in a distressed community were 1.71 (95% CI 1.12-2.62) times the odds for those living in a prosperous community; among Black subjects, the OR was 0.47 (95% CI 0.30-0.75; p-interaction = 0.0001). Among women, the OR for orbital trauma among those living in a distressed community was 0.46 (95% CI 0.29-0.71); among men, the OR was 0.70 (95% CI 0.52-0.97; p-interaction = 0.03).

CONCLUSION

Overall, we found an inverse association between higher area-level socioeconomic deprivation and orbital trauma among both men and women. The association varied by race, such that there was an inverse association with higher deprivation among Black subjects in contrast to a positive association among White subjects.

Retrospective Optimization of the Hawkeye Orbital Fracture Prioritization and Evaluation Algorithms for Triaging Ophthalmic Care

Objectives

Many orbital fracture patients are transferred to tertiary care centers for immediate ophthalmology consultation, though few require urgent ophthalmic evaluation or intervention. This overutilizes limited resources and overburdens patients and the health care system with travel and emergency department (ED) expenses. A simple, easy-to-use, clinical decision-making tool is needed to aid local EDs and triage services in effectively identifying orbital fracture patients who need urgent ophthalmic evaluation.

Design

Single center, retrospective cohort study.

Subjects

Orbital fracture patients aged ≥ 18 years who presented to the study institution's emergency department and received an ophthalmology consultation.

Methods

Ocular injuries that required close monitoring or an intervention within the first few hours after presentation were termed urgent. Two Hawkeye Orbital Fracture Prioritization and Evaluation (HOPE) algorithms were developed to identify orbital fracture patients needing urgent evaluation; including 1 algorithm incorporating computerized tomography (CT) scans interpreted by ophthalmology (HOPE+CT). Algorithms were compared with 3 previously published protocols: the University of Texas Health Science Center at Houston (UTH), the South Texas Orbital Fracture Protocol (STOP), and Massachusetts Eye and Ear (MEE) algorithms.

Main Outcome Measures

Correct triage of patients with orbital fractures who have urgent ocular or orbital conditions.

Results

In the study institution's ED, 134 adult patients (145 orbits) were seen with orbital fractures in 2019. Eighteen (13.4%) had ocular or orbital conditions categorized as urgent. The HOPE tool resulted in 100% sensitivity and 78.4% specificity. The HOPE+CT tool resulted in 100.0% sensitivity and 94.0% specificity. The UTH algorithm was 91.7% sensitive and 76.5% specific. South Texas Orbital Fracture Protocol and MEE were both 100% sensitive but only 35.1% and 32.8% specific, respectively.

Conclusions

The HOPE and HOPE+CT algorithms were superior or equal to the UTH, STOP, and MEE algorithms in terms of specificity while detecting all urgent cases. Implementation of a triage protocol that uses the HOPE or HOPE+CT algorithms could improve resource utilization and reduce health care costs through identification of orbital fracture patients needing urgent evaluation. An online tool that deploys the HOPE+CT algorithm in a user-friendly interface has been developed and is undergoing prospective validation before public dissemination.

Financial Disclosures

Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

Effect of Oral Prednisone on the Prevention and Management of Proliferative Vitreoretinopathy After Open-Globe Injury

Purpose: To determine the impact of oral prednisone on the final visual acuity (VA) and prevention of proliferative vitreoretinopathy (PVR) in patients having pars plana vitrectomy (PPV) for globe injuries. Methods: A retrospective chart review was performed of all globe injuries with an initial repair and subsequent PPV between 2009 and 2018. Data included the initial VA, zones of injury, initial closure date, time to secondary intervention (PPV), oral prednisone (1 mg/kg/day) use, the final VA, and enucleation rate. Multivariable regression models were used to assess the impact of oral prednisone use on anatomic and functional outcomes. Results: The mean (±SD) patient age was 46.25 ±18.56 years (range, 13-92); 131 (83.9%) were men. Oral prednisone intake was recorded in 81 patients (52.3%). The prednisone group had significantly more zone 3 involvement (P = .001), worse initial VA (2.28 vs 1.92 logMAR; P = .003), and a greater mean number of surgeries (P = .020) than the no-steroids (control) group but an equivalent final logMAR VA (1.57 vs 1.52; P = .881). The prednisone group had significant VA improvement (P = .025); however, oral prednisone use did not predict the development of PVR (29.23% vs 12.90%; odds ratio [OR], 2.81; 95% CI, 0.89-8.85) or retinal detachment (27.27% vs 29.58%; OR, 0.59; 95% CI, 0.23-1.56). Conclusions: Despite a worse initial clinical presentation, patients who received oral prednisone had significant visual improvement compared with the control group. However, oral prednisone (1 mg/kg/day) use at the time of injury did not decrease the PVR rate.

Epidemiology of ophthalmic trauma in the United States from 2009-2018: A Nationwide Emergency Department Sample Analysis

PURPOSE

To determine the incidence, characteristics, disposition, and economic burden of emergency department (ED) visits for ophthalmic trauma in the United States (US).

DESIGN

Retrospective study.

METHODS

The Nationwide Emergency Department Sample was used to calculate and characterize ED visits for ophthalmic trauma in the US from 2009 to 2018. Linear regression was used to estimate trends in annual incidence and mean inflation-adjusted ED charges. Logistic regression was used to assess variables associated with inpatient admission.

RESULTS

There were over 7.3 million ED visits for ophthalmic trauma in the US over the 10 years, with an annual incidence of 233 per 100,000 population. Patients were predominantly male (65 %), 21-44 years old (39 %), and from low-income households (56 %). Only 1 % of patients were hospitalized. Older age, male sex, metropolitan teaching hospitals, and trauma centers were associated with significantly higher odds of inpatient admission. The mean inflation-adjusted ED charge per visit more than doubled over the decade ($1,333 to $3,187) with total charges exceeding $14 billion. Superficial injuries (44 %) and eyelid/orbit wounds (20 %) accounted for the majority of visits. Orbital floor fractures (4 %) and open globe injuries (2 %) accounted for a minority of visits but were responsible for most admissions (49 % and 29 %, respectively) and the highest mean ED charge ($7,157 and $6,808, respectively).

CONCLUSIONS

Ophthalmic trauma represents an increasingly significant burden to EDs in the US. Preventive efforts should target young males from low socioeconomic backgrounds. Strategies to improve outpatient access and redirect non-urgent injuries may help alleviate costs.

Ocular injuries sustained at home in five metropolitan cities: a review of 5008 cases

Background

In Iran, ocular injuries sustained at home are a growing public health issue, and few studies have explored their prevalence and the frequencies of different causes of these injuries. We investigated the features of ocular injuries at home among children and adolescents (aged < 18 years), adults (18 - 64 years), and the elderly ( ≥ 65 years) in five metropolitan cities.

Methods

In this cross-sectional study, we recruited individuals with ocular injuries sustained at home who presented to 12 public/teaching hospitals in five metropolitan cities during a 5-month period. Using clinical records within the emergency department archives, we collected the following data: age, sex, frequency of injuries requiring hospital admission or surgical intervention, and causes of eye injuries, documented as 1) cleaning products, 2) chemical products, 3) kitchen items, 4) cooking activities, 5) toys, 6) falls from height, 7) sports equipment, 8) penetrating or cutting, 9) abrasions, 10) foreign bodies, and 11) direct blows by other individuals.

Results

Of 5008 participants from the five cities, 74% (n = 3711) were male and 26% (n = 1297) were female. The most frequent causes of injury among children and adolescents, adults, and the elderly were toys, kitchen items, and cooking activities, respectively. In children and adolescents, injuries were caused by kitchen items, toys, foreign bodies, and direct blows by other individuals more frequently than in adults or the elderly, and by cleaning products and abrasions more frequently than in the elderly (all P < 0.05). In adults, injuries were caused by cleaning products, cooking activities, falls from height, sports equipment, penetrating or cutting, and abrasions more frequently than in children and adolescents or the elderly (all P < 0.05), and by kitchen items, toys, and blows by other individuals more frequently than in the elderly (all P < 0.05). In the elderly, injuries were caused by chemical products more frequently than in children and adolescents or adults, and by cooking activities, falls from height, and sports equipment more frequently than in children and adolescents (all P < 0.05). In adults, the frequency of ocular injuries was significantly higher in Tehran and lower in Mashhad when comparing each with that of the other four cities (all P < 0.05). We found a significantly higher frequency of ocular injuries by cleaning and chemical products in Tehran, by toys in Shiraz, by falls from height in Isfahan, and by direct blows by other individuals in Ahvaz when comparing each to that of the other four cities (all P < 0.05). Regarding the prevalence of severe ocular injuries among the children/adolescent and adult age groups, conditions were relatively better in Shiraz and relatively unfavorable in Mashhad.

Conclusions

Ocular trauma was more common in male individuals and the younger age groups. Approximately half of the causes were kitchen items, toys, and foreign bodies, which are avoidable by enhancing public eye health awareness. The prevalence of severe ocular injuries in individuals aged < 18 years was high, highlighting the necessity of nationwide preventive strategies for pediatric ocular injuries.

Association of open globe injury characteristics with outcome measures in the emergency department

PURPOSE

To evaluate the association of demographic and clinical features of emergency department (ED) patients presenting with open globe injuries (OG) with outcomes such as inpatient admission rate, length of stay (LOS), and total cost.

METHODS

The Nationwide Emergency Department Sample database 2018 and 2019 was used to analyze the association of demographic and clinical features of OG patients with outcome measures.

RESULTS

8404 OG patients were identified. Medicaid patients were associated with higher ED costs and a higher frequency of extended LOS. The 70+ age group was associated with higher inpatient admission. Frail patients were associated with significantly increased likelihood of inpatient admission, higher likelihood of extended LOS and higher total combined ED cost. Falls and being struck were associated with shorter LOS.

CONCLUSION

This study describes the most common demographic and clinical characteristics of OGIs that present to the ED, as well as the association of these characteristics with outcome measures such as inpatient admission rates, LOS, and total cost. The study further identified potential high-risk patients for prolonged length of stay. The findings will better optimize patient care protocols to improve outcomes.

Preclinical biocompatibility and biosafety evaluation of a new foldable brown diaphragm intraocular lens: An in vitro and in vivo study

BACKGROUND

A new foldable brown diaphragm intraocular lens (IOL) was preclinically evaluated in vitro and in vivo by comparing its biocompatibility and biosafety with those of a commercially available IOL.

METHODS

The new foldable iris-diaphragm IOL is composed of hydrophobic acrylic material, with a transparent optical zone and surrounding brown diaphragm. Cellular experiments evaluating lens epithelial cell morphology, adhesion, and migration were conducted to exclude cytotoxic effects. Twelve New Zealand rabbits underwent implantation of a brown diaphragm IOL in one eye, whilst an additional 12 had a commercially available foldable IOL implanted, followed by slit-lamp evaluations of inflammatory reactions and capsular opacification. Corneal endothelial cells density was measured before and after implantation. Aqueous humour samples were obtained weekly for liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis to investigate dye leakage from the brown-diaphragm IOL. Following 12 weeks of observation, haematoxylin and eosin staining of ocular tissue and scanning electron microscopy (SEM) of the IOL surface were performed.

RESULTS

Results from in vivo experiments found no statistically significant differences between the two groups in terms of postoperative inflammation and capsular biocompatibility. No significant changes in corneal endothelial cell density were observed in either group before and after surgery. LC-MS/MS analysis showed that the target dye was not detected in aqueous humour samples. Histopathology of ocular sections and SEM imaging of IOL surfaces showed similar changes in both groups.

CONCLUSIONS

The newly invented IOL showed good biocompatibility and biosafety. Combined with its foldability and peripheral shading, it could be a new choice for patients with iris defects.

Ophthalmology Resident Oculofacial Surgery Case Exposure: An ACGME Case Log Analysis

PURPOSE

The authors quantified trends in resident oculofacial surgery exposure between 2009 and 2018, reviewed specific procedure volume, and correlated procedure volume with program characteristics.

METHODS

The authors requested de-identified case logs of residents graduating US ophthalmology residency programs in 2018 from all 118 programs. Current Procedural Terminology codes of all oculofacial procedures were analyzed. Current Procedural Terminology codes were grouped into 25 unique categories that the authors created in addition to the 11 Accreditation Council for Graduate Medical Education categories.

RESULTS

One hundred and sixty-six of 488 (34%) US ophthalmology residents graduating in 2018 provided case logs (32.2% of programs). According to Accreditation Council for Graduate Medical Education case logs, residents graduating in 2018 completed significantly fewer eye removal/implant procedures, lacrimal surgeries, "other orbital" procedures, entropion/ectropion repairs, and temporal artery biopsies as primary surgeon than residents graduating in 2009, yet significantly more eyelid laceration repairs, chalazion excisions, tarsorrhaphies, ptosis repairs, and blepharoplasty/reconstruction procedures ( p < 0.05). No difference was found between the total number of oculofacial cases between 2009 and 2018 ( p = 0.051). The most frequently logged procedure per resident in the sample was blepharoplasty/reconstruction (17.2 ± 15) followed by "other oculoplastic" (12.7 ± 10.6). The least commonly performed procedures included temporal artery biopsy (1.5 ± 2.2) and "other orbital" (1.9 ± 3.1). Program size, location, and presence of oculofacial fellowship program all impacted case volume.

CONCLUSIONS

Oculofacial surgery has the second highest case number requirement for residents per Accreditation Council for Graduate Medical Education guidelines. However, resident exposure to oculofacial surgery cases greatly varies in each ophthalmology residency program.

Baltimore pediatric ocular trauma study: Health disparities and outcomes in pediatric and adolescent open globe trauma

Purpose Children represent approximately one-third of patients with serious ocular injuries. Our study evaluates associations between race and socioeconomic status in presentation and outcomes of pediatric and adolescent traumatic open globe injuries. Methods We conducted a retrospective chart review of traumatic open globe injuries in pediatric and adolescent patients presenting to Johns Hopkins Hospital and University of Maryland Medical Center between 2006 and 2020. Variables assessed included age, gender, parent-identified race, median household income, mechanism of injury, initial and final visual acuity (VA), and length of follow-up. Results Eighty patients ranging from 4 months to 17.7 years (mean 9.3 years) presented with traumatic open globe injury. Identifications were 28 White (35%), 38 Black (48%), and 5 Hispanic (6%). Initial presenting and final VA, pediatric ocular trauma score (POTS), and length of follow-up did not differ significantly among race, gender, or income. Black patients had higher rates of blunt trauma (odds ratio (OR) 3.81; 95% confidence interval (CI) 0.95-15.24, p = 0.07), uveal prolapse (OR 3.58; 95% CI 1.03-12.43; p = 0.049), and enucleation (OR 10.55; 95% CI 1.26-88.31). Hispanic patients presented at a younger age of 2.8 years mean age vs. 9.9 years (p = 0.004) for others. Conclusion Visual outcomes following traumatic open globe injury were independent of race, gender, or income. However, blunt trauma, uveal prolapse, and enucleation rates were higher in Black patients, and ocular trauma occurred at a younger age in Hispanic patients.

Incidence, Characteristics, and Cost of Eyelid Lacerations in the United States from 2006 to 2014

INTRODUCTION

To report the incidence, demographics, and cost of eyelid lacerations (ELs) in the USA.

METHODS

The Nationwide Emergency Department Sample is the largest publicly available emergency department database in the US. We conducted a retrospective longitudinal analysis to identify all emergency department (ED) visits in the sample from 2006 to 2014 with a primary or secondary diagnosis of EL. Descriptive statistics were calculated for hospital characteristics, patient demographics, and inflation-adjusted patient ED and in-patient (IP) charges.

RESULTS

The incidence of primary and total ELs from 2006 to 2014 decreased by 50 per million and 7.1 per million, respectively. In the same period, the total ED and average ED charge, corrected for inflation, increased by almost $37 million and $1600 per person, respectively. Motor vehicle accidents (MVAs) were the mechanism of injury (MOI) associated with the highest average ED and IP costs at $5391 and $42,677, respectively. However, object- (42.2%) and fall-related (28.8%) were the most reported MOI overall. Peak months of EL presentations were seen in May and July, and > 90% of primary ELs were classified as periocular. Most ELs occurred in men and children, representing 69% and 44% of all primary EL cases, respectively.

CONCLUSION

The incidence of ELs declined from 2006 to 2014. ELs occurred most frequently in children and young adults. The high proportion of object and fall-related injuries in this population highlights an area to develop strategies to reduce the frequency of preventable eye injuries.

Open Globe Injury in a Tertiary Hospital of Northern Thailand: No Vision Survival and Ocular Trauma Score

Purpose

To determine characteristics and factors associated with no vision survival (included no light perception, enucleation, and evisceration) following open globe injury (OGI) and to correlate the proportion of final vision to predictive values of ocular trauma score (OTS).

Patients and Methods

The medical records of consecutive patients diagnosed as OGI between January 2015 and December 2020 were retrospectively reviewed. Data collected included demographics, mechanisms and modes of injuries, ophthalmic presentations, managements, and visual outcomes at the final visit.

Results

Three hundred and seventy-one patients with a mean (standard deviation, SD) age of 44.0 (17.4) years were included. Male with workplace injury was the most frequent scenario. High-velocity metallic objects were the predominant causative materials. Following treatments, fifty-six eyes (14.9%) obtained no vision survival. Factors associated with no vision survival following OGI were low presenting vision, globe perforation, larger wound, presence of relative afferent pupillary defect, retinal detachment, and vitreous hemorrhage. Compared to OTS predictive values, eyes in OTS categories 1 and 2 had a lower proportion of no vision survival.

Conclusion

This study identified the importance of workplace injuries. Overall, there were comparable final visions between OTS and this study. However, a reduced proportion of no vision survival among severely injured eyes signifies the challenges of OGI management.

Outcomes of pars plana vitrectomy following ocular trauma at varying surgical time points

Background

The optimal timing of pars plana vitrectomy (PPV) following ocular trauma is an ongoing debate. Early vitrectomy post-trauma enables the rapid assessment of retinal disease by removing the scaffold that fosters proliferative vitreoretinopathy. On the other hand, late vitrectomy is less challenging as there is a lower risk of bleeding and posterior vitreous detachment induction is easier. The purpose of this work is to report the functional and anatomical outcomes following ocular traumatic injuries in a United States-based cohort, emphasizing the time of intervention.

Methods

This was a retrospective case series of 110 patients with traumatic ocular injuries who underwent PPV between 2008 to 2020. Patients were grouped into four timing categories: same day (0 days), early (1–7 days), delayed (8–14 days), and late (> 14 days). Multivariable regression models controlling for confounding were implemented to assess the impact of vitrectomy timing on anatomical and functional outcomes. Visual acuity (VA) at baseline and after surgery, proliferative vitreoretinopathy (PVR), and enucleation for each vitrectomy timing category were recorded.

Results

Patient demographics and severity of ocular trauma were comparable across timing categories. Final VA in LogMAR was found to have a stepwise worsening as the time of ocular trauma to vitrectomy was increased (p < 0.05). For every one-step increase in the vitrectomy timing category, there was an adjusted 0.24 (CI 0.04–0.44) increase in final VA. No patient in the same day vitrectomy group had an enucleation or PVR, while patients who had late vitrectomies had the largest number of both enucleations and PVR (44.4% and 52.0%, respectively). In adjusted analysis, there was 3.11 increased odds (CI 1.03–9.42) of developing PVR for a one-step increase in vitrectomy timing (p < 0.05).

Conclusion

Vitrectomy on the same day of injury has the best final VA, and the lowest incidence rates of PVR and enucleation in comparison to other timing categories, regardless of etiology.

Supplementary Information

The online version contains supplementary material available at 10.1186/s40942-022-00399-9.

Social determinants associated with loss of an eye in the United States using the All of Us nationwide database

PURPOSE

To identify common factors associated with the loss of an eye using the NIH All of Us database.

METHODS

In this case-controlled study, we extracted electronic health record and socio-demographic data for 231 cases of eye loss from All of Us enrollment sites. Controls (N = 924) matched the demographic characteristics of the 2020 United States Census. Bivariate analyses and multivariable logistic regression identified variables significantly associated with increased odds of eye loss.

OUTCOME MEASURES

Medical and social determinants associated with increased odds of losing an eye.

RESULTS

Among cases, the average age (standard deviation) was 60.1 (14.4) years. The majority (125, 54.1%) were male. 87 (37.7%) identified as African American, and 49 (21.2%) identified as Hispanic or Latino. Loss of eye was more likely in those with ocular tumor (odds ratio [OR] 421.73, 25 95% confidence interval [CI] 129.81-1959.80, p < .001), trauma (OR 13.38, 95% CI 6.64-27.43, p < .001), infection (OR 11.46, 95% CI 4.11-32.26, p = .001) or glaucoma (OR 8.33, 95% CI 4.43- 15.81, p < .001). African American (OR 2.39, 95% CI 1.39-4.09, p = .002) and Hispanic or Latino (OR 1.80, 95% CI 1.01-3.15, p = .04) participants were disproportionately affected.

CONCLUSIONS

Racial and ethnic disparities exist among those with loss of an eye from underlying conditions. Addressing health inequities may mitigate the risk of this morbid outcome.

Outcomes of Penetrating Keratoplasty After Open Globe Injury

PURPOSE

The purpose of this study was to investigate the clinical features, surgical outcomes, and prognostic factors of penetrating keratoplasty (PKP) after open globe injury (OGI).

METHODS

A retrospective review of all patients treated for OGI between January 2000 and July 2017 was conducted. Demographic, preoperative, perioperative, and postoperative data were collected for those who underwent PKP after OGI. The predictive value of each preoperative variable on graft failure was assessed using univariate and multivariable Cox proportional hazards models, and the predictive value of variables on post-PKP visual outcome was assessed using both univariate and multivariable logistic regression models. All eyes that underwent PKP after OGI were included unless they had less than 365 days of follow-up.

RESULTS

Forty-six eyes that underwent PKP met inclusion criteria. The median age was 46 years (interquartile range = 23.00-61.25), median follow-up was 78.5 months (interquartile range = 38.63-122.02), and 37 of 46 subjects (80.4%) were male. The observed 1- and 5-year graft survival estimates were 80.4% and 41.7%, respectively. Factors statistically associated with graft failure in multivariable analyses were rejection episode, hazard ratio (HR) = 3.29; retinal detachment (RD), HR = 3.47; and endophthalmitis, HR = 6.27. Fifteen of 42 eyes (35.7%) regained ambulatory vision (20/200 or better). The strongest predictors of vision worse than 20/200 at the last follow-up were RD, odds ratio (OR) = 43.88; graft rejection, OR = 12.42; and injury outside the workplace, OR = 25.05.

CONCLUSIONS

Despite a high graft survival at 1 year, most of the patients did not regain ambulatory vision. Graft rejection, RD, and endophthalmitis were risk factors for graft failure. These factors should be considered when counseling patients regarding PKP after OGI.

Misdiagnosis of Orbital Foreign Body as Glaucoma Drainage Device

BACKGROUND

Sight-threatening complications from retained orbital and intraocular foreign bodies are frequently reported in literature. Delays in diagnosis can result in severe complications, including choroidal neovascularization, infection, and irreversible vision loss. Therefore, it is imperative that emergency physicians consider the possibility of orbital and intraocular foreign bodies when evaluating patients with acute facial trauma.

CASE REPORT

A 91-year-old woman with a history of laser-treated glaucoma and cataracts presented to an outside emergency department after a ground-level fall. A maxillofacial noncontrast computed tomography scan showed no facial fractures or hemorrhage, but a 41 mm × 4 mm foreign body within the intraconal compartment of the right orbit was identified. The object was presumed to be an implanted glaucoma drainage device, and the patient was discharged without antibiotics. One day after discharge, the patient developed right periorbital swelling and erythema with increasing purulent discharge and skin thickening, ultimately requiring transfer to our facility for management of complex right orbital cellulitis, orbital compartment syndrome, and surgical foreign body removal. Despite globe exploration and surgical intervention, the patient developed a frozen globe with no light perception in the right eye. Why Should an Emergency Physician Be Aware of This? Subtle ophthalmologic emergencies such as sight-threatening foreign bodies can be challenging to diagnose on imaging, particularly with the advent of implantable ocular technology. When an orbital foreign body is discovered in the context of facial trauma, early ophthalmology consultation should be considered.

Ophthalmology Resident Ophthalmic Trauma Case Exposure: Trends Over Time and an ACGME Case Log Analysis

Purpose

To describe ophthalmology resident experience with ophthalmic trauma cases in the U.S. 

Methods

We analyzed Accreditation Council for Graduate Medical Education (ACGME) case log data and de-identified case logs from US ophthalmology residency programs for residents graduating in 2018.  Current Procedural Terminology (CPT) codes documented as “Globe Trauma” and  trauma-related “Oculoplastic and Orbit” codes including lid lacerations and lateral canthotomies were analyzed.

Results

38 residency programs provided case logs (response rate: 32.2%). Residents performed an average of 7.24±4.37 open globe repairs, 8.66±6.94 lid laceration repairs, 0.49±1.4 orbital fracture repairs, 1.22±1.81 lateral canthotomies, and 0.28±0.69 anterior chamber washouts as primary surgeon. On average, the most logged “Globe Trauma” procedure was open globe repair as primary surgeon. The more common trauma-related “Oculoplastic and Orbit” procedure was lid laceration repair as primary surgeon.  42.8% of residents did not log any lateral canthotomy procedures. Medium programs performed significantly more canthotomies than large programs (F(2166) = 6.35, p = 0.002), and large programs performed significantly more orbital fracture repairs than small and medium programs (F(2166) = 4.45, p = 0.013).

Conclusion

Significant variation in globe trauma volume exists across programs. ACGME guidelines require a minimum of four globe trauma procedures for graduation, but procedures like anterior chamber paracentesis count towards this requirement. Open globe repairs, simple lid lacerations, and lateral canthotomies are basic skills every graduating resident should be competent in. Updating ACGME case log requirements for ophthalmic trauma and increasing opportunities for wet lab simulations may assist in ensuring graduating ophthalmology residents’ competency in performing these procedures.

Role of Socioeconomic Status (SES) in Globe Injuries: A Review

Globe injury is a serious worldwide public health issue frequently leading to permanent vision impairment. The plethora of different types of globe injuries is classified into categories, including open and closed globe injuries. Globe injury occurs mainly in the workplace and at home, affecting predominantly middle-aged working men. Socioeconomic status (SES) is defined by income level, educational attainment, and employment status. Low socioeconomic status has been associated with a higher incidence of globe injury and can be utilized to identify at-risk populations. For managing open and closed globe injuries, different strategies are applied and the implementation of adequate globe injury prevention measures is needed for reducing the occurrence of globe injury. The following article aims to provide an overview of globe injury characteristics and their correlation with socioeconomic status and to highlight the significance of considering SES as a variable in globe injury prevention.

Epidemiological Characteristics of Paediatric Eye Injuries in a Large Metropolitan City in South Korea: A Multicentre, Prospective Study

PURPOSE

: The aim of this study was to identify the epidemiological characteristics of paediatric eye injury in a large metropolitan city based on age group and sex.

METHODS

: This prospective, multicentre, observational study used data extracted from the eye injury registry for tertiary teaching hospitals in Daegu, South Korea, between August 2016 and July 2018. Children aged < 16 years were classified as infants, pre-schoolers, school children, and adolescents based on their age group.

RESULTS

: This study included 502 patients; most eye injuries occurred among boys (n = 349, 69.5%) and school children (n = 168, 33.5%). Unstructured play (n = 268, 53.4%) was the most common cause of eye injury, followed by sports (n = 69, 13.7%) and home activities (n = 52, 10.4%). Among adolescent boys, eye injuries were mostly caused by sports activities (n = 49, 37.7%), including soccer and basketball. Only 1 out of 69 children wore protective eyewear during sports activities. Eye injuries occurred most often in school (n = 63, 41.2%) during adolescence and at home (n = 270, 53.8%) in most other age groups.

CONCLUSION

: Eye injuries were more common in boys. Boys and girls had relatively higher proportion of eye injuries during sports and home activities, respectively. In infants to school children, eye injuries mainly occurred at home and by unstructured play, whereas in adolescents, they mostly occurred at school and during sports activities. To prevent eye injuries sustained during sports in adolescents, wearing personal protective equipment during high-risk exercise in schools or sports facilities is recommended.

Epidemiology and outcomes of open globe injuries: the international globe and adnexal trauma epidemiology study (IGATES)

PURPOSE

To detail the methodology for a novel ocular trauma registry and utilize the registry to determine the demographics, nature of injury, and associations of severe visual loss for open globe injuries (OGI).

METHODS

Thirteen hospitals in 7 countries used International Globe and Adnexal Trauma Epidemiology Study (IGATES) platform. Patients presenting between April 2009 and 2020 with OGI (with or without) adnexal involvement or intraocular foreign body (IOFB) were included.

RESULTS

Analyses of presenting and final VA, using "severe vision loss" (VA ≤ 6/60) and "no severe loss" (VA > 6/60), were performed. Four hundred fifty-four (64%) patients had VA < 6/60 at presentation and 327 (44.8%) at final follow-up, with a highly significant association between presenting and final VA (p < 0.0001). From the cohort of 746 patients, 37 were missing VA at presentation and 16 at follow-up and complete clinical data was available for 354 patients. The male to female ratio is 6:1, and mean age 36.0 ± 20.0 years old. Relative afferent pupillary defect (RAPD), zone III injury, IOFB, and eyelid injury at presentation were recorded in 50 (6.7%), 55 (7.8%), 97 (13%), and 87 (11.7%) patients, respectively, and were significantly associated with VA < 6/60 at follow-up. Older age, ≥ 61 years, was associated with 3.39 times (95% CI: 1.95-5.89) higher risk than ≤20-year-old patients (p < 0.0001) and males 0.424 times (95% CI: 0.27-0.70) lower risk than female (p = 0.0001) of severe vision loss (SVL).

CONCLUSION

In OGIs from 13 hospitals, female gender, older age, zone III injury, eyelid injury, and IOFB were associated with higher risk of visual outcome of SVL.

Open globe injuries: Epidemiology, visual and surgical predictive variables, prognostic models, and economic cost analysis

BACKGROUND

Open globe injuries (OGI) represent a visually and economically devastating cause of vision loss. We examined the epidemiology, predictive variables, prognostic models, and economic cost of surgically managed OGI.

METHODS

A retrospective tertiary centre study from 2008 to 2018 of 155 consecutive OGI in individuals aged 16 and older was performed. Medical records review, application of Ocular Trauma Score (OTS) and Classification and Regression Tree Analysis (CART) and cost analysis were undertaken. Key outcomes measured were visual acuity, number of operating theatre visits, prognostication using OTS and CART and estimated costs.

RESULTS

Younger males at work with inadequate protective eyewear (89.1%) and falls in the elderly were overrepresented. Inferior visual outcomes were associated with a more severe OTS score, a larger injury zone, increasing age, the presence of retinal detachment, extraocular muscle involvement, intraocular foreign body, and globe rupture (R²  = 0.723, p < 0.001). Multiple operating theatre visits were required in the presence of retinal detachment, lens or orbit involvement, work-related injury, globe rupture, and a history of previous intraocular surgery (R²  = 0.0423, p < 0.001). Both OTS and CART prognosticated outcomes (p < 0.001). The OTS predicted for no vision (no light perception/enucleation/evisceration) and profound visual loss (worse than 6/120; specificity: both 100%, sensitivity: 88.2% and 88%) whereas the CART predicted for visual survival (light perception or better) and minimal-to-severe visual loss (6/120 or better; specificity: 88.5% and 81.7% , sensitivity: 97.7% and 100%). Estimated annual OGI cost for Australia was AUD48.1-60.5 million (USD37.3-47.0 million).

CONCLUSIONS

The total cost of OGI is immense with young males and the elderly being disproportionately affected. Implementation of targeted government legislation and public health preventative measures may be cost-effective in ameliorating the significant burden.

Epidemiology and outcomes of hyphema: a single tertiary centre experience of 180 cases

PURPOSE

To characterize the epidemiology and outcomes of hyphema.

METHODS

Retrospective case series. Medical records from patients with traumatic and spontaneous hyphema seen at the Wilmer Eye Institute, Johns Hopkins, from 2011 through 2017 were evaluated. Aetiology, demographics, clinical characteristics, complications, management and outcomes were ascertained. Multivariable logistic regression was used to identify factors associated with elevated intraocular pressure (IOP), rebleeding and poor outcome (final visual acuity ≤ 20/40) in traumatic hyphema. A safe frequency of follow-up was retrospectively determined.

RESULTS

Traumatic hyphema (n = 152) was more common in males (78%) and adults (55%), with sports/recreational activities being the most frequent cause (40%). Elevated IOP was the most common complication (39%). Rebleeding occurred in seven patients (5%) and was more likely with a higher IOP on presentation (OR:1.1; p = 0.004). Thirty-seven patients (24%) had a poor outcome, mostly due to traumatic sequelae such as cataract (32%) or posterior segment involvement (30%). A poor outcome was more likely with worse presenting visual acuity (OR: 9.1; p = 0.001), rebleeding (OR: 37.5; p = 0.035) and age > 60 years (OR: 16.0; p = 0.041). Spontaneous hyphema (n = 28) did not have a gender predominance and was more common in adults > 60 years (71%). The most common cause was iris neovascularization (61%). Complications and visual outcomes were worse compared with traumatic hyphema.

CONCLUSIONS

Traumatic hyphema continues to be common in young males engaging in sports, necessitating increased awareness for preventive eyewear. Older age and rebleeding can lead to poor outcomes. Elevated IOP at presentation predisposes to rebleeding and warrants frequent follow-up. Otherwise, routine follow-up at days 1, 3, 5, 7 and 14 is sufficient for uncomplicated cases.

Characteristics of Ophthalmic Trauma in Fall-Related Hospitalizations in the United States from 2000 to 2017

Purpose: Falls is a leading cause of injuries nationally and can lead to serious ophthalmic injuries. The purpose of this study is to examine the incidence and characteristics of ophthalmic trauma in patients with fall-related hospitalizations in the United States.Methods: Retrospective, cross-sectional study. National Inpatient Sample (NIS) was queried to identify all ophthalmic trauma associated with fall-related hospitalizations from 2000 to 2017. Patients were identified using relevant International Classification of Diseases (ICD) codes. National estimates, annual incidences and characteristics were produced from trend weights provided by the NIS sampling frame and population data from the US Census Bureau.Results: There were 21,415,120 fall-related hospitalizations of which 425,725 (2.0%) had ophthalmic trauma. Ophthalmic injury incidence increased from 4.26 to 14.31 per 100,000 population (P < .01) from 2000 to 2017. Mean (±SEM) age was 69.2 ± 20.1 years and 56.9% were females. Of the patients with specified fall mechanism, the most common mechanisms were tripping or stumbling (48.0%), falls related to furniture (18.3%), and falls related to stairs (16.3%). The most common ophthalmic injuries were contusions of the eye and adnexa including hyphema and commotio retinae (50.1%), orbital fractures (20.7%), and eyelid lacerations (14.9%).Conclusions: Incidence of ophthalmic trauma in patients with fall-related hospitalizations has increased and our study provides valuable information for targeting preventive measures particularly for the elderly and falls due to tripping, stairs, and furniture related accidents. The most common associated ophthalmic injuries are contusions, orbital fractures and eyelid lacerations.

Multiple Approaches for Managing Complex Ophthalmic Blunt Trauma: A Case Report

Introduction

Ophthalmic trauma is defined as injuries affecting the ocular structures, including the globe, eyelid, lacrimal system, and surrounding orbital walls. Blunt trauma acts as the leading cause of injury and it may affect both the anterior and posterior parts of the globe. Prompt diagnosis, early management, and sustained follow-up are mandatory for an optimal outcome.

Purpose

This report presents a one-step surgery management process for an intricate case of blunt facial trauma with complex ophthalmic and nasal injury.

Patients and Methods

A 45-year-old male with blunt force trauma of the left eye from a wooden block, suffered from naso-orbital-ethmoidal fractures, eyelid laceration with canalicular, close-globe injuries of traumatic cataract and vitreous hemorrhage with retinal detachment. A simultaneous one-step surgery was performed by a trauma team of ophthalmological and ENT surgeons during the height of the COVID-19 pandemic to lessen the risk of cross-transmission. After ruling out the possibility of open-globe rupture, traumatic cataract extraction, retinal detachment surgery, the repair of an eyelid laceration with canalicular involvement, and septorhinoplasty were performed on concomitantly.

Results

Anatomical success was achieved for the repair of the nasoorbitoethmoidal (NOE) type II fracture and close-globe injuries, including the anatomical reattachment of the retina. However, the functional outcome remained unsatisfactory. Visual acuity failed to show further improvement at a later follow-up. Traumatic optic neuropathy was, at the final follow-up, considered to be the cause of the suboptimal visual acuity.

Conclusion

A single-step multi-procedure for a complex ophthalmic blunt trauma, as demonstrated in this case, may be beneficial for reducing the complications that might arise due to treatment delay. The complex nature of the injury, however, creates the higher possibility for residual post-operative complications. Risks of residual functional impairment should be considered in such complex trauma prior to surgery, to determine the surgical prognostic value and provide appropriate consent to the patient.

Socioeconomic Status and Decreasing Incidence of Ocular Injuries in Bosnia and Herzegovina

Purpose: To examine the epidemiologic and clinical characteristics of ocular injuries and their association with socioeconomic status (SES).Material and Methods: All cases of ocular injuries hospitalized in Department of Ophthalmology of University Clinical Center Tuzla, Bosnia and Herzegovina, from January 2009 to December 2012 and January 2017 and December 2019 were prospectively followed. The injuries were classified according to Ocular Trauma Classification System (OTCS) and Birmingham Eye Trauma Terminology (BETT).Results: This study included a total of 420 eyes from 396 patients. There were 162 (38.57%; 95%CI: 32.86-44.99) open globe injuries (OGI) and 258 (61.43%; 95%CI: 54.16-69.4) closed globe injuries (CGI). The decrease in incidence of ocular trauma requiring hospitalization was noted from 16.7 per 100 000 (95%CI: 13.11-20.97) in 2009 to 9.25 per 100 000 (95%CI: 6.64-12.55) in 2019 (p=0.006). Most injuries occurred in males 341 (81.19%; 95%CI: 72.8-90.28), active working patients 258 (61.43%, 95%CI:54.16-69.4), and patients with rural residence 285 (67.86%; 95%CI: 60.21-76.21). Almost all ocular injuries 418 (99.52%; 95%CI: 90.21-109.54) occurred in patients with middle and lower SES categories, and home was the most prevalent place of injury in 258 (61.43%, 95%CI: 54.16-69.4) patients. The total of 289 (70.49%; 95%CI: 62.59-79.1) patients had good final best corrected visual acuity (BCVA). Poor final BCVA was associated with lower ocular trauma score (OTS) (p=0.000), poor initial BCVA (p=0.000), penetrating injuries of cornea (p=0.004) and sclera (p=0.001), Zone III injuries (p=0.000), intraocular foreign body presence (p=0.000), cataract (p=0.002), retinal detachment (p=0.001), endophthalmitis (p=0.000) and vitreous hemorrhage (p=0.010).Conclusion: This study provides a detailed insight into epidemiology and socio-economic characteristics of patients hospitalized for ocular injuries.

Traumatic Iridodialysis Associated With Hyphema Secondary to Injury From a Bungee Cord

We present a case of an iris sphincter tear with iridodialysis, mydriasis, and hyphema secondary to a traumatic injury from a bungee cord. The correlation between the mechanism of injury and physical exam findings as well as the emergency department evaluation and management are discussed.

Open Globe Injuries Related to Traffic Accidents: A Retrospective Study

Purpose

To evaluate epidemiology, clinical characteristics and outcomes of patients sustained traffic-related open globe injury (OGI).

Methods

The medical records of all OGI patients who were admitted in a tertiary referral center from January 2006 to December 2016 were retrospectively evaluated. Then, the records of injuries related to traffic accidents were identified and reviewed in detail.

Results

Among the overall causes of OGI, traffic-related accidents comprised 92/978 (9%) of cases. Nearly half of the injuries (51%) occurred in the 20–39-year-old group and 59% involved automobile transportation. Globe rupture occurred in 48 (47%) eyes. Following treatments, LogMAR visual acuity (VA) significantly improved from a median (interquartile range) of 2.3 (1.9–2.3) to 1.7 (0.3–3.0), at the final appointment. Presence of relative afferent pupillary defect and presence of retinal detachment were predictors for poor final visual outcomes.

Conclusions

Traffic-related OGI had a high prevalence in the young. The risky transportation modes were motorcycles in teenagers and automobiles in young adults. Despite treatment, there was a considerable proportion of impaired final VA. This information could help establish effective safety education and encourage regular adherence to road safety behaviors in the high-risk groups.

Epidemiology and Clinical Patterns of Ocular Trauma at a Level 1 Trauma Center in Korea

BACKGROUND

To evaluate the patterns of distribution and clinical manifestations of ocular injuries referred to the level 1 trauma center of Pusan National University Hospital (PNUH) in Korea.

METHODS

We analyzed 254 of 4,287 patients who were referred to the Department of Ophthalmology at the level 1 trauma center of the PNUH, from January 2016 through December 2018. Data on the incidence of ocular injuries, sex, age, monthly and seasonal distribution, day and time of injury, side of injury, cause, residence of patients, referral time to an ophthalmologist and subsequent examination time, final visual acuity (VA), and complications were obtained from medical records and retrospectively reviewed. The patients were grouped according to their main diagnosis using the Birmingham Eye Trauma Terminology System (BETTS) and Ocular Trauma Score (OTS).

RESULTS

The incidence of ocular injuries with major trauma was higher in men (n = 207, 81.5%), the median age at time of injury was 54 years, and Pusan recorded the most cases. The incidences of ocular injury were 1.47/100,000, 1.57/100,000, 1.48/100,000 in 2016, 2017 and 2018, respectively. The most common cause was by a motorbike accident, followed by a pedestrian traffic accident and falls. According to the BETTS classification, open-globe injuries represented 4% of cases, closed-globe injuries represented 12.6%, and other injuries represented 83.1%. Open-globe injuries were significantly associated with low final VA (P = 0.01). In the OTS, 79.4% of patients received 4 or 5 points and 13.7% of patients received 1 or 2 points. The patients who received 1 or 2 points in the OTS score showed final VA below hand movement (P < 0.001), except for two patients. Lid laceration and low initial VA were highly correlated with poor final VA (P < 0.001).

CONCLUSION

This is the first study on the epidemiology and clinical manifestations in trauma patients with ocular injuries at a level 1 trauma center. The incidences of ocular injuries with major trauma were about 1.47-1.57/100,000. BETTS, OTS, lid laceration and initial VA were associated with final VA. We expect our study to provide a basis of data for the evaluation, prevention, and management of ocular injuries in patients with systemic trauma.

Characteristics of Open Globe Injuries in the United States From 2006 to 2014

Importance

Open globe injuries can lead to substantial visual morbidity and lifelong sequelae. Interventions to reduce the burden of open globe injuries in the United States require a better understanding of these injuries through well-designed epidemiologic investigations.

Objective

To examine the incidence, common injury mechanisms, and economic burden of open globe injuries in the United States.

Design, Setting, and Participants

This retrospective, cross-sectional study of US nationwide emergency department (ED) data assessed all ED visits of patients with a primary diagnosis of open globe injury in the Nationwide Emergency Department Sample (NEDS) from January 1, 2006, to December 31, 2014. Data analysis was performed from August 29, 2018, to November 11, 2019.

Main Outcomes and Measures

Annual incidence of open globe injuries by age, sex, mechanism of injury, and concomitant diagnosis, as well as median charges associated with open globe injuries and variables associated with hospitalization.

Results

A total of 124 989 ED visits for open globe injuries were assessed, with an incidence of 4.49 per 100 000 population in the United States from 2006 to 2014 (mean [SD] age of study participants, 37.7 [22.5] years; 94 078 [75.3%] male). The incidence was highest in 2006 (5.88 per 100 000 population) and decreased by 0.3% per month between 2006 and 2014 (incidence rate ratio, 0.99; 95% CI, 0.99-0.99; P < .001). Open globe injuries occurred in 37 060 individuals (30.6%) of low socioeconomic status. The most common injury mechanism was being struck by or against an object or person (40 119 of all 124 989 injury mechanisms [32.1%]). Open globe injuries associated with falls increased 6.6% between 2006-2010 and 2011-2015 (95% CI, 1.04-1.08; P < .001) and were the most common injury mechanism in individuals older than 70 years. The total cost associated with open globe injuries was $793 million. The cost of ED visits increased from $865 during 2006-2010 to $1557 during 2011-2015. Inpatient costs similarly increased from $21 527 during 2006-2010 to $30 243 during 2011-2015.

Conclusions and Relevance

The incidence of open globe injuries in the United States decreased from 2006 to 2014. Although the data are from 5 to 13 years ago, these findings appear to provide valuable information for targeting preventive measures toward individuals at highest risk; targeting young men with lower socioeconomic status and individuals 70 years or older at an increased risk of falls may help lower the incidence of open globe injuries.

The Oculocardiac Reflex: Its Evolution and Management

INTRODUCTION

The oculocardiac reflex is initiated by a pressure stimulus to the orbit or periorbital structures causing in bradycardia transmitted via the trigeminal-vagus nerve reflex arc. While this most frequently occurs with ophthalmologic surgeries, trauma to the orbit and periorbital structures can result in bradycardia and even in some cases, asystole. The aim of this case report and review of the literature is to identify and examine recent studies of the oculocardiac reflex related to facial trauma and to identify associated patient age, symptoms, and fracture patterns.

METHODS

A literature search was performed using the database within PubMed.gov using the term "oculocardiac." Results were reviewed for case reports or series related to facial trauma from the year 2000 to 2019. Studies were then evaluated for fracture pattern, presence of entrapment, patient symptoms, and age.

RESULTS

The initial search resulted in 109 articles. A total of 22 articles were case reports or series of trauma patients. Twenty articles met inclusion criteria. Median age was 22 years. Eleven patients sustained orbital floor fractures. Four patients sustained medial wall fractures. Three patients had concomitant orbital floor and zygomatic fractures, and 4 with concomitant orbital floor and medial wall fractures. The most common extracardiac symptom experienced was nausea and vomiting (15/23) followed by diplopia (10/23). Status of entrapment was available in 20 patients of which entrapment was reported in fourteen (14/20).

CLINICAL REPORT

A 26-year old male presents after blunt trauma to the face resulting in a left orbital floor, rim, and maxillary fractures. Extraocular movements were initially intact and the patient had no diplopia. He developed bradycardia to 30 to 40 bpm just prior to induction of anesthesia. He was found to have developed entrapment of the inferior rectus muscle. The orbital floor and rim were repaired with complete resolution of bradycardia.

CONCLUSION

Patients who sustain maxillofacial trauma involving the orbit are at risk of developing the oculocardiac reflex. Patients tend to be younger. The orbital floor is more commonly the site of traumatic injury. Nausea and vomiting are common encountered symptoms. The oculocardiac reflex, clinicians must recognize, is not static but may evolve over a patient's clinical course as seen in our patient.

Epidemiology, Clinical Characteristics, and Visual Outcomes of Patients with Intraocular Foreign Bodies in Southwest China: A 10-Year Review

INTRODUCTION

Intraocular foreign bodies (IOFBs) are a serious subset of open-globe injury that can result in visual loss. This study analyzed the epidemiology, clinical characteristics, and visual outcomes of patients with IOFBs in Southwest China.

METHODS

This retrospective study comprised 1,176 patients with the primary diagnosis of IOFBs who resided in Sichuan Province over a 10-year period. All data were collected from medical records and analyzed statistically.

RESULTS

The annual incidence for IOFBs was 0.14 per 100,000 (95% confidence interval 0.12-0.16 per 100,000) people in Southwest China. In that period, IOFBs accounted for 22.3% of all open-globe injuries. Working-age male patients accounted for 79.1% of all IOFBs patients and there had significant differences in age distributions between genders (p < 0.001). Metallic IOFBs were the most common (74.6%) IOFB, but there were significant differences in the materials of IOFBs between adults and children of different age-groups (p < 0.001). At discharge, 277 (23.6%) patients had increased visual acuity (VA) and 95 (8.0%) had no light perception. Initial VA <20/200 (odds ratio [OR], 5.5; p < 0.001), increasing wound size (OR, 1.3; p = 0.004), IOFBs in the posterior segment (OR, 2.6; p = 0.002) and existing complications (traumatic cataract, endophthalmitis, retinal detachment, or retinal break) were independent risk factors for final VA <20/200.

CONCLUSION

The incidence of IOFBs in Southwest China differed from global statistics. Adults and children had different clinical characteristics. Thus, their prevention strategies should be different.

Clinical evaluation of the efficacy of materials used for primary reconstruction of orbital floor defects: Meta-analysis

BACKGROUND

The aim of this network meta-analysis (NMA) was to compare the clinical results obtained after primary reconstruction of orbital floor fractures (OFF) using different materials.

METHODS

PubMed, Cochrane, and Google Scholar databases were screened from 1989 to 2019. For a study to be eligible, it had to evaluate two or more materials and report the following clinical parameters: diplopia and/or enophthalmos and/or other complications.

RESULTS

Nine studies involving 946 patients presenting with an OFF were included. After the surgical procedure, 105 patients (11%) had diplopia, while 43 patients (4.5%) suffered from enophthalmos. The NMA revealed that less postoperative diplopia and enophthalmos were obtained either by using polydioxanone (PDS), or a polymer of l-lactic acid and dl-lactic acid (P[L/DL]LA), or porous polyethylene, or titanium mesh compared with the use of autologous bone grafts.

CONCLUSION

P(L/DL)LA and PDS seem to be the best options for small and intermediate defects, whereas the association of porous polyethylene and titanium should be preferred for larger defects.

Characteristics of Orbital Floor Fractures in the United States from 2006 to 2017

PURPOSE

To examine the incidence, characteristics, and economic burden of orbital floor fractures in the United States.

DESIGN

Retrospective, longitudinal study of the Nationwide Emergency Department Sample (NEDS).

PARTICIPANTS

Patients in the Emergency Department (ED).

METHODS

The NEDS, a representative sample of all hospital-based EDs in the US, was used to identify and describe ED visits with a primary diagnosis of orbital floor fracture from 2006 to 2017. Linear regression was used to estimate the trends in annual incidence and inflation-adjusted ED charges. Logistic regression was used to assess variables associated with inpatient admission.

MAIN OUTCOME MEASURES

Incidence, injury mechanisms, demographics, clinical characteristics, disposition, and economic burden.

RESULTS

From 2006 to 2017, there were an estimated 350 379 ED visits in the US with a primary diagnosis of orbital floor fracture. The incidence increased by 47% over the study period (P < 0.001): from 7.7 (95% confidence interval [CI], 6.9-8.5) to 11.3 (95% CI, 10.0-12.6) per 100 000 population. The majority were male (67%), aged 21 to 44 years (46%), and from low-income households (32%). The most common cause was assault (43%), which was most frequent in young adults (65%) and increased modestly over time (3.5 to 4.5 per 100 000 population; P = 0.02). The second most common cause was falls (26%), most frequent in patients aged ≥65 years (86%) and more than doubled over time (1.6 to 3.5 per 100 000 population; P < 0.001). The rate of inpatient admission was 14%, with a higher likelihood for patients aged ≥65 years (odds ratio [OR], 2.21; 95% CI, 1.99-2.46; P < 0.001) and falls (OR, 1.54; 95% CI, 1.27-1.86; P < 0.001). The total inflation-adjusted ED charges over the study period exceeded $2 billion, with the mean charge per visit increasing 48% (P < 0.001): from $5881 (95% CI, 5499-6263) to $8728 (95% CI, 8074-9382).

CONCLUSIONS

Orbital floor fractures are becoming an increasingly common and costly injury in the United States. Preventive strategies aimed at reducing assault and falls will be crucial to mitigate the burden of orbital floor fractures on the healthcare system.

Epidemiology of outpatient and inpatient eye injury in Taiwan: 2000, 2005, 2010, and 2015

Purpose

To estimate the incidence rate of eye injuries (EI) requiring inpatient and outpatient treatment in Taiwan and compare the epidemiologic characteristics of EI (age, sex, treatment setting, seasonality, occupation, external cause, diagnosis, and surgery) in the years 2000, 2005, 2010, and 2015.

Methods

We analyzed four random samples of 1,000,000 beneficiaries each from 2000, 2005, 2010, and 2015 of the Taiwan National Health Insurance Program. The direct age-standardized rate, with 95% confidence interval (CI), was used to compare EI rates for the four calendar years. The chi-square test and chi-square test for trend were used to compare data for the four calendar years.

Results

Annual EI incidence rates were between 2.57% in 2000 and 3.28% in 2015. The age-standardized rates were 2.73% (95% CI, 2.70%–2.76%) in 2000, 3.37% (95% CI, 3.33%–3.41%) in 2005, 3.31% (95% CI, 3.28%–3.35%) in 2010, and 3.02% (95% CI, 2.99%–3.06%) in 2015. Manual workers had the highest EI incidence rate, followed by non-manual workers and civil servants. The proportion of EI requiring inpatient treatment declined from 1.34% in 2000 to 0.63% in 2015 (P <0.0001). Analysis of seasonality showed a consistent decrease in February in the four sampling years; however, this decrease in EI was only seen in outpatients, not in EI requiring hospitalization. The proportion of outpatients requiring surgery significantly decreased, from 2.53% in 2000 to 1.2% in 2015 (P<0.0001). However, the proportion of inpatients requiring surgery for EI as the principal diagnosis increased from 69.32% in 2000 to 83.02% in 2015 (P = 0.29), and the proportion of inpatients requiring surgery for EI as a secondary diagnosis increased from 54.86% in 2000 to 71.6% in 2015 (P = 0.0019). Among inpatients with EI, the most common cause of EI was a traffic accident (44.79%, especially motorcycles), followed by falls (9.75%) and homicide (6.05%).

Conclusion

In Taiwan, the annual EI incidence rate slightly increased from 2000 to 2005 and then decreased through 2015. The proportion of EI patients requiring hospitalization decreased from 1.34% in 2000 to 0.63% in 2015, but the percentage of inpatients requiring surgery increased. Traffic accidents (especially those involving motorcyclists) remained the predominant external cause of EI requiring hospitalization during the study period.

Eye trauma in falls presenting to the emergency department from 2006 through 2015

Aims

To characterise the epidemiology of eye trauma in the event of falls presenting to the emergency departments (ED) in the USA.

Method

Retrospective cohort study. Nationwide Emergency Department Sample was used to analyse fall encounters presenting to the ED with eye trauma from 2006 to 2015. National estimates of the leading diagnoses were determined, and multivariable regression was used to determine the relationship between factors involved in fall encounters presenting with eye trauma.

Results

From 2006 to 2015, an estimated 87 991 036 fall encounters presented to the ED, of which 952 781 encounters had eye trauma as either a primary or secondary diagnosis. The overall incidence of fall encounters with eye trauma per 100 000 US population increased from 30.7 encounters in 2006 to 33.8 encounters per 100 000 population in 2014 with a decrease seen in 2015. Eye trauma, including vision-threatening type, was highest in females (n=500 520, 52.5%), elderly (n=400 209, 42%) and children (n=2 06 741, 21.7%). Elderly were more likely to have eye trauma in the setting of falls (adjusted OR (aOR) 2.06, 95% CI 2.02 to 2.11) and be admitted (aOR 1.89, 95% CI 1.86 to 1.91) than adults (reference). The leading types of eye trauma were contusion of orbital tissues (n=174 292, 18.3%), laceration of eyelid and periocular area (n=172 361, 18.1%) and orbital fractures (n=151 013, 15.8%).

Conclusions

Falls are preventable, yet the incidence of falls and resulting eye trauma are increasing despite our best efforts. As ophthalmologists, we should not only develop guidelines to recognise and counsel at-risk groups under our care but also strategies for prevention of eye trauma secondary to falls.

Clinical Characteristics and Visual Outcomes of Patients Hospitalized for Ocular Trauma in Shandong Province, China

Purpose

To analyze the clinical characteristics and visual prognoses of patients with ocular trauma treated in Shandong Eye Hospital.

Methods

The inpatient data of patients with eye injuries hospitalized in our institution from January 2014 to December 2018 were retrospectively reviewed, including demographic information, types of trauma, causes of injury, treatment, and initial and final visual acuities.

Results

A total of 1,425 patients (1,622 eyes), aged 39.5 ± 18.5 years, were included. The ratio of male to female was 5.3 : 1. Of the mechanical eye injuries, there were 490 (34.4%) open-globe injuries and 454 (31.9%) closed-globe injuries. Nonmechanical eye injuries had 426 patients (29.9%), while 55 patients (3.9%) had adnexal injuries. Over a half of the traumas were work-related (51.1%, 728 patients). Most patients were treated with surgical intervention (1,404 eyes, 87.9%). There were significant differences in the final visual acuities between open-globe injuries and closed-globe injuries (P < 0.001), as well as between mechanical injuries and nonmechanical injuries (P < 0.001). The final visual acuity was closely correlated with the initial visual acuity (Spearman's correlation coefficient = 0.618, P < 0.001) and the OTS score (Spearman's correlation coefficient = 0.691, P < 0.001).

Conclusion

Ocular trauma usually occurs in young and middle-aged men and in the workplace in Shandong Province. The proportion of nonmechanical injuries is high, and the prognosis is poor. A comprehensive understanding of the characteristics of ocular trauma is useful for blindness prevention and treatment.

Eye-Related Emergency Department Visits and The Opioid Epidemic: a 10-Year Analysis

PURPOSE

To describe the epidemiology of Emergency Department (ED) visits related to opioid abuse with primary ophthalmic diagnoses in the United States (US).

METHODS

This retrospective cross-sectional study used National ED Sample (NEDS) (2006-2015), a representative sample of all US EDs, to analyze and compare the epidemiology of primary ophthalmic diagnoses in opioid abusers and a control group of non-opioid users. National incidence and descriptive statistics were calculated for demographics and prevalent diagnoses. Multivariable logistic regression was used to compare outcomes between primary ophthalmic diagnoses in opioid and non-opioid abusers.

RESULTS

An estimated 10,617 visits had a primary ophthalmic diagnosis and an accompanying opioid abuse diagnosis, and the incidence increased from 0.2 in 2006 to 0.6 per 100,000 US population in 2015. Opioid abuse group had more adults (6,747:63.5%) and middle-aged (3,361:31.7%) patients, while in controls adults (7,905,003:40.4%) and children (4,068,534:20.8%) were affected more. Leading etiologies were similar: traumatic and infectious etiologies were most common; however, opioid abuse patients had more severe ophthalmic diagnoses such as orbital fractures (8.4%), orbital cellulitis (7.4%), globe injury (3.4%) and endophthalmitis (3.2%) compared to controls. Patients in the opioid abuse group were also more likely to be admitted (adjusted Odds Ratio [aOR], 28.38 [95% CI, 24.50-32.87]).

CONCLUSIONS

In the era of opioid crisis, an increase in ED visits with ophthalmic complaints is seen, with increasing direct and indirect costs on the healthcare system. More research is needed to establish causality and devise strategies to lower this burden.

Pathophysiology and management of glaucoma and ocular hypertension related to trauma

Ocular trauma is a significant cause of blindness worldwide, particularly if associated with glaucoma. Direct damage from blunt or penetrating trauma, bleeding, inflammation, lens-related problems, orbital and brain vascular pathologies related to trauma, and chemical injuries may increase intraocular pressure and lead to traumatic glaucoma. Treatment may be as simple as eliminating the underlying cause in some conditions or management can be challenging, depending on the mechanism of damage. If proper management is not undertaken, visual outcomes can be poor. We discuss a broad spectrum of trauma-related mechanisms of intraocular pressure elevation, as well as their management.

Epidemiology of Eye Injuries Resulting in Hospitalization, a Referral Hospital-Based Study

Purpose

To determine the characteristics of hospitalized eye injuries in Northern Thailand, a tertiary referral center.

Methods

The medical records of patients who sustained an eye injury and were admitted to the Department of Ophthalmology, Chiang Mai University, Thailand, from February 2015 to February 2016 were retrospectively reviewed. Demographics and characteristics of each injury were collected.

Results

A total of 249 injured patients were included, of which 227 (91.2%) were male. There was no significant difference in the mean (standard deviation) age between genders, 39.8 (22.9) years of age for females and 43.8 (17.8) for males (P = 0.43). Most injuries occurred in the workplace (149/249, 59.8%). Nearly similar proportions of the opened globe and closed globe injuries were observed, 121/249 (48.6%) patients and 109/249 (43.8%) patients. A small proportion sustained eyelid/adnexal and chemical injury, 19/249 (7.6%) patients. Corneal penetration (52/249, 20.9%) and intraocular foreign body (37/249 14.9%) were the most prevalent conditions for opened globe injury. Traumatic lens subluxation/dislocation (31/249, 12.4%) and a traumatic corneal ulcer (25/249, 10.1%) were the common conditions for closed globe injury. A delayed presentation to the hospital was noted in closed globe injury. The eyelid/adnexal injury group had a better final visual acuity compared to the opened and closed globe injury group.

Conclusion

Activities related to hospitalized eye injuries were varied in different age groups, specifically adults at workplace, and children at playground; therefore different strategies should be applied to prevent visual impairments and disabilities in specific high-risk groups.

Work tool-related eye injuries: Helsinki Ocular Trauma Study

Purpose

To quantify and characterize the epidemiology, treatments, long-term outcome, and use of resources for work tool-related eye injuries and their severity.

Methods

We included all new patients with a work tool-related eye injury treated at the Helsinki University Eye Hospital in 1 year. The data were from hospital records, examinations, and patient questionnaires. The follow-ups were at 3 months and 6 years.

Results

Work tools caused 3% (37/1151) of all eye injuries. The mean age was 37 and 84% were men. Most injuries (84%) occurred at work (17) or at home (15). There were 14 minor injuries, 12 contusions, 9 open globe injuries (OGI), and 2 eyelid wounds. The annual incidence of work tool-related eye injuries was 2.4/100,000 and hospitalization 0.6/100,000. At 6-year follow-up, we re-examined 18 patients and 17 were interviewed by phone. Four patients were blinded. We recorded 690 sick leave days and 43 major operations. No traumatic glaucoma was diagnosed. Fifteen patients needed lifelong follow-up. Permanent impairment occurred in 30% (11) of work tool-related eye injuries, from whom, nine were caused by manual tools. Work tools comprised 10% of the permanently impaired, but 2.5% of the non-permanently impaired cases among all eye injuries (1151).

Conclusion

The proportional difference between the permanently impaired and the non-permanently impaired was higher in work tool-related eye injuries than other causes reported in previous Helsinki Ocular Trauma Studies. High-risk injuries were mainly caused by manual tools and nails and resulted in OGI.

Association of the Robert Wood Johnson Foundations' Social Determinants of Health and Medicare Ocular Hospitalizations: A Cross Sectional Data Analysis

INTRODUCTION

Social determinants of health (SDH) may influence inpatient utilization rates and outcomes but have yet to be associated with ocular diagnoses. The purpose of this paper was to determine whether the SDH are associated with ocular hospitalizations.

METHODS

Patients from the national Medicare 100% Inpatient Limited Dataset were examined and linked to SDH measures from the Robert Wood Johnson Foundation (RWJF) County Health Rankings. Patients were included in the study group with either an admitting or primary diagnosis of an ophthalmic condition. All other hospitalized Medicare patients served in the comparison group. Nested logistic regression of these Medicare patients was conducted in their respective communities at the county level. SDH measures were benchmarked above or below the national median.

RESULTS

Positively associated SDH factors included communities with air pollution exceeding 11.62 micro grams per cubic meter (OR 1.05; 95% CI 1.01-1.08), communities where severe housing problems exceeding 14.38% (OR 1.13; 95% CI 1.09-1.18), children in single parent households exceeding 32.13% (OR 1.06; 95% CI 1.02-1.11), violent crime rate exceeding 250.54 per 100,000 (OR 1.07; 95% CI 1.03-1.12), diabetes exceeding 10.95% (OR 1.09: 95% CI 1.04-1.14), and drug poisoning deaths including opioids exceeding 14.17 per 100,000 (OR 1.04; 95% CI 1.01-1.08).

CONCLUSION

When compared to an all-condition, hospitalized population, ocular hospitalizations tended to have small, yet statistically significant associations with health behaviors, socioeconomic, and physical environment factors. Further research will be needed on how the physical environment, social, and community variables affect ocular health relative to all-cause hospitalizations.

Trends and Disparities in Inpatient Costs for Eye Trauma in the United States (2001-2014)

PURPOSE

To determine the trends and disparities in inpatient costs for eye trauma in the United States from 2001 through 2014.

DESIGN

Retrospective population-based cross-sectional study.

METHODS

National Inpatient Sample, a representative sample of U.S. hospital discharges, was used to determine costs of eye trauma hospitalizations. Linear regression was used to estimate changes in mean inflation-adjusted cost per admission. Multivariable logistic regression was used to evaluate factors associated with a cost in the highest quartile (>$13 000) including age, sex, race, income quartile, primary payer, hospital location, size, and type. The model was adjusted for year of admission, length of stay, type of trauma, comorbidities, and the type and number of procedures performed.

RESULTS

The inpatient costs for eye trauma from 2001 through 2014 totaled $1.72 billion. The mean cost (95% confidence interval [CI]) per stay remained relatively constant: $12 000 ($11 000-13 000) in 2001 to $11 000 ($10 000-12 000) in 2014 (P = .643). A cost in the highest quartile was more likely in African Americans compared to whites (adjusted odds ratio, 1.3; 95% CI, 1.2-1.5), patients in the highest income quartile compared to those in the lowest (1.3; 1.2-1.5), uninsured patients compared to publicly insured patients (1.2; 1.1-1.4), teaching hospitals compared to non-teaching ones (1.5; 1.2-1.8), and the West compared to the South (2.4; 2.0-2.8).

CONCLUSIONS

Inpatient costs of eye trauma have remained steady and can be potentially reduced by addressing associated disparities. Further research including outpatient costs and eye trauma in vulnerable populations will be key to optimizing care and advancing healthcare equity.

Eye injury registries - A systematic review

OBJECTIVES

Registries are integral to monitoring, surveying, treating, preventing and prognosticating trauma. The quantity and quality of data must justify a change or intervention in treatment and/or preventive strategies and must be collected while balancing the cost and time invested in the registry. This review documents the quality, completeness and operational and funding models for ocular trauma registries worldwide.

METHODS

The databases CENTRAL, MEDLINE, EMBASE and Informit Health Collection were searched using key word and mesh terms for: "Eye injury, "Ocular trauma", "Eye injury prevention", "Eye protection", "Registry". To find relevant unpublished articles and theses, clinicaltrials.gov, Trip, MedNar and Google Scholar were searched using the key words "eye injury" OR "ocular trauma" AND "registry*". No date or language restrictions were applied. The quality of registry data was assessed against published measures including design, operation and data quality.

RESULTS

The electronic search retrieved 528 distinct published articles; 61 articles were assessed for eligibility. Of the 61 articles identified, 28 were eligible to be included in the review, with cross-referencing identifying a further 7 articles. The source of most articles on ocular trauma registries was the United States, followed by Germany and China. Patient follow-up was conducted in 31 studies, with 6 months being the most frequently reported period. Issues with data quality included incomplete data such as presence or absence of eye protection and initial visual acuity. Attrition bias was controlled by the United States Eye Injury Register with follow-up. Patients without follow-up data were removed for some studies and this may have introduced bias.

CONCLUSION

National, state and hospital-based ocular trauma registries have contributed significantly to our understanding of ocular trauma. The United States has the most frequently cited and well-resourced ocular trauma registries. It is anticipated that this review will guide the development of future registries for ocular trauma in order to inform evidence-based prevention strategies and, ultimately, improve visual outcomes. We recommend the development of a consensus guidelines for international ocular trauma registry that includes mechanism and context of injury and visual outcomes, to permit international comparison that can be implemented at low cost with secure data capture.

Intraocular foreign body injury in children: clinical characteristics and factors associated with endophthalmitis

Background/Aims

To analyse the clinical characteristics of intraocular foreign body (IOFB) injury in children and evaluate factors associated with endophthalmitis development.

Methods

Patients aged <18 years with IOFB attending Zhongshan Ophthalmic Center between January 2003 and July 2016 were included retrospectively. Demographic features, clinical characteristics and factors associated with endophthalmitis development were analysed.

Results

Consecutive subjects (n=484, 484 eyes) were included: mean age 10.12±4.54 years, 86.4% male. Fireworks (28.5%) were the most common cause of injury. Injury of uncertain cause (17.5%), fireworks (36.7%) and metal splatter (31.7%) accounted for most injuries in the 0–3, 4–12 and 13–17 years age groups, respectively. Plant branches (16.7%) and fireworks (31.1%) were the most common causes of injuries in females and males, respectively. Endophthalmitis occurred in 116 patients (24.0%), with metallic IOFB (OR=0.338, p=0.001), intraocular haemorrhage (OR=0.100, p<0.001) and uveal tissue prolapse (OR=0.206, p<0.001) conferring lower risk, while zone II wound (OR=4.336, p<0.001) and traumatic lens rupture (OR=2.567, p=0.028) were associated with higher risk.

Conclusion

Clinical characteristics of children with IOFB injury differ from those of adults. Fireworks are the most common cause of injury, indicating a ban on children igniting fireworks should be advocated. Safety education and protective measures should vary by age and sex. Endophthalmitis is associated with zone II wound, traumatic lens rupture, IOFB material, intraocular haemorrhage and uveal tissue prolapse, which has clinical relevance.

Summary of Indiana Farm Fatalities Involving Individuals 55 Years and Older—1988–2017

Agriculture has historically been one of the most hazardous of all occupations, with a variety of potential safety risks to workers and even higher risks documented for older agricultural workers. This study was undertaken to document and summarize Indiana farm work-related fatalities involving persons 55 years and older over the 30 year period from 1988 to 2017. Data were mined from the Purdue University Agricultural Safety and Health Program’s Fatality Database that dates back to the 1960s. A total of 388 fatalities involving persons 55 years and older was documented. The average age of the victims was 69.3 years old, and an overwhelming majority of the cases involved males (96.1%). The average number of deaths per year has remained fairly consistent, though it has occasionally been erratic, with an unanticipated increase in the number of documented fatalities over the period 2012–2017. There appeared to be a direct positive correlation between the level or intensity of agricultural production in a county and the frequency of fatalities. The type of fatal injury most commonly reported was crush/run-over, with 229 cases (59%). The most common agent or source of injury involved was tractors, with 157 cases (40.5%). Another noted contributing factor was the high frequency of incidents in which the victim was reported to be working alone at the time of death. Findings will be used to develop evidence-based injury prevention strategies, including the development of agricultural safety training materials and methods more relevant to older farmers. A special emphasis should be placed on reducing the risk of tractor and farm machinery overturns, especially when older, non-roll over protection structure (ROPS) equipped tractors are being operated.