Clinical characteristics and visual outcomes of animal-induced ocular injuries: a prospective multicenter study in Iran.

Background: Animal-induced ocular injuries represent an under-documented health problem that may pose significant visual complications. This study aimed to investigate the clinical characteristics and outcomes of ocular injuries caused by animals. Methods: This multicenter prospective study enrolled patients with a history of animal-induced ocular injuries presenting to the ophthalmology departments of two tertiary hospitals over a one-year period. All participants underwent comprehensive assessments by ophthalmologists, and the following data were collected: demographic information, animal species involved, injury details, pre- and post-treatment visual data, management strategies, and follow-up outcomes. Results: Seventy-two patients (62.5% male) were included in the study. Insects were the most common species, causing 37.5% of ocular injuries. The type of animal involved was significantly associated with injury patterns (p < 0.0001), visual impairments at presentation (p < 0.05), and need for surgery (p < 0.001). Insects predominantly caused periorbital soft tissue injuries; birds primarily affected the anterior segment; dogs and cats mainly led to adnexal injuries; and equines often involved both anterior and posterior segments. Equine-related injuries resulted in the most severe visual impairments, requiring surgical interventions in all cases. At the same time, the majority of cases involved with other animal species experienced no visual impairment. The number of patients without visual impairment increased from 46 cases (63.9%) at the time of presentation to 58 (80.6%) at discharge after treatment. At follow-up, eight patients (11.1%) experienced complications, including traumatic cataract (n = 6, 8.3%), endophthalmitis (n = 3, 4.2%), corneal scarring (n = 1, 1.4%), and retinal detachment (n = 1, 1.4%). Rooster pecking was the leading cause of complications, including endophthalmitis and traumatic cataract. Conclusion: This study revealed that depending on the type of animal causing the injury, animal-induced ocular injuries present with diverse characteristics, requiring appropriate treatment approaches and potentially resulting in different outcomes. These findings may promote public awareness and improve preventive strategies and clinical guidelines development.

Marginal Full Thickness Blepharotomy for Management of Orbital Compartment Syndrome.

PURPOSE: To assess the utility of a marginal full thickness blepharotomy (MFTB) for the treatment of orbital compartment syndrome. METHODS: An experimental study design employing a cadaver model for orbital compartment syndrome was used to assess the efficacy of an MFTB. Elevated orbital compartment pressures were created in 12 orbits of 6 fresh cadaver heads. Intraocular pressure, as an analog of orbital pressure, was measured before and after inferior and superior MFTBs were performed. Statistical analysis was performed on the collected data to assess the efficacy of the procedure. RESULTS: Both procedures were found to significantly lower the orbital compartment pressure. MFTB of the inferior lateral eyelid decreased orbital compartment pressure by an average of 62.2 mm Hg (95% CI, 56.9-67.5). MFTB of the superior lateral eyelid following MFTB of the inferior lateral eyelid decreased the orbital compartment pressure by an additional average of 10.3 mm Hg (total average reduction of 72.5 mm Hg; 95% CI, 68.1-76.9). CONCLUSIONS: Orbital compartment syndrome is a time-sensitive vision-threatening emergency that requires prompt diagnosis and intervention to prevent irreversible vision loss. The authors describe the MTFB, a simple one-step procedure that when performed correctly results in a significant decrease in orbital compartment pressure, making it a viable option when canthotomy and cantholysis fails or is unable to be performed.

Intraosseous Hemangioma of the Zygomatic Bone with Multidisciplinary Approach to Surgical Resection and Orbital Reconstruction.

Background: Intraosseous hemangiomas are rare benign tumors comprising fewer than 1% of all osseous tumors; even more uncommon are intraosseous hemangiomas of the zygomatic bone. This case reports a multidisciplinary approach for excision and reconstruction of an intraosseous hemangioma of the zygomatic bone in a 54-year-old female. Methods: Multidisciplinary approach with both otolaryngology head and neck surgery and oculofacial plastics and reconstructive surgery included right lateral canthotomy and right transconjunctival orbitotomy with en-bloc excision of the zygomatic arch, followed by reconstruction of the orbital rim, orbital floor, and eyelid with Medpor implant. Results: Final surgical pathology was consistent with intraosseous hemangioma of the zygomatic bone. At 4-month follow-up, the patient was healing well with good midface projection and without any visual deficits. Conclusions: A multidisciplinary coordinated case allowed us to meet the standard of maintaining cosmesis and function while undergoing resection of a rare tumor involving a key facial structure-the zygoma. Involvement of oculofacial plastics and reconstructive surgery service allowed for advanced eyelid reconstruction techniques to limit any functional impairment to our patient with deliberate choice of implant material for well-adhered, durable, and aesthetically optimal reconstruction of the right malar eminence, lateral orbital rim, and orbital floor defect. The postoperative result through the multidisciplinary approach was a near symmetrical facial reconstruction without any associated eyelid or globe abnormalities.

Scope of practice of oculofacial plastic and reconstructive surgeons: a public perception survey.

PURPOSE: The purpose of this study is to determine the public's perception of the scope of practice for oculofacial plastic and reconstructive surgeons (OFPRS). METHODS: A 49-question survey was distributed by QualtricsⓇ to a panel similar to the US demographic composition. Responses collected underwent bivariate statistical analysis. RESULT: A total of 530 responses were obtained, with most respondents being white, female, over the age of 35, from the Midwest, and with at least a college education or above. Most respondents did not think ophthalmologists or optometrists were surgeons, and only 158 people (29.8%) knew the primary specialty of OFPRS was ophthalmology. Board certification was preferred by 98.87% of respondents, and 95.28% preferred ASOPRS-trained OFPRS. CONCLUSIONS: Our study highlights the gap in knowledge about OFPRS as a field, the qualifications and training required, and the scope of practice. Notably, even for OFPRS-specific procedures, PRS remained the leading subspecialist chosen for interventions such as orbital decompression (58.5% vs. 71.5%), orbital reconstruction (57.9% vs. 74.2%), enucleation/evisceration (48.1% vs. 53.4%), optic nerve-related surgery (39.8% vs. 43.4%), orbital cancer resection (42.8% vs. 46.8%), and tear duct surgery (41.9% vs. 52.5%). Additionally, most respondents did not feel that facial fillers, laser skin resurfacing, eyelid cancer removal, or cataract surgery were within the OFPRS scope of practice.

The Diagnostic Accuracy of First-Year Ophthalmology Residents on Call: Considerations for Postgraduate Year 2 (PGY-2) Standardizations of Call Structure.

Background Ophthalmology is a unique specialty with limited exposure during medical school. To improve the transition to ophthalmology residency, the Accreditation Council for Graduate Medical Education (ACGME) announced in 2017 that all ophthalmology residency programs would move to a combined post-graduate year (PGY) 1 year with mandatory integration by 2023. Currently, there are no standardized guidelines from the American Board of Ophthalmology (ABO) or the Accreditation Council for Graduate Medical Education (ACGME) to address ophthalmology resident competence prior to becoming the primary contact for inpatient and emergency room (ER) consultations as a PGY-2. Novice residents may not be equipped to accurately diagnose vision or life-threatening ocular conditions. A balance between resident autonomy and supervision is required for proper training without increasing patient morbidity and mortality. Objective This study's objective is to examine the diagnostic accuracy of PGY-2 ophthalmology non-integrated residents on call to standardize supervision requirements (through buddy-call) prior to initiating indirectly supervised calls. Methods All inpatient and ER ophthalmology consults for the first seven weeks of the year evaluated by PGY-2 (junior) residents were supervised and graded as "correct" or "incorrect" by PGY-4 (senior) residents. Results One hundred forty-eight consults were seen over 30 call days over a period of seven weeks (4.93 consults per call). The percentage of correct diagnoses increased with each successive week (R2 = 0.9581; correlation = 0.979). The greatest percent increase of correctly diagnosed encounters was between weeks 2 and 3 (19.14%) correlating to call numbers 10-16 and 45-68 patient encounters. The mean percent accuracy surpassed 70% during weeks 3-4, and improvement continued to week 7. High-acuity diagnoses were identified consistently 100% of the time from week 5 onward. Conclusion Our analysis indicated that diagnostic accuracy was greater than 70% between weeks 3 and 4 with high-acuity diagnostic accuracy reaching 100% at week 5. It can be postulated that optimal direct senior resident supervision is needed for at least 3-5 weeks before transitioning to indirectly supervised calls by PGY-2 residents. This standardization would allow junior residents to acquire sufficient clinical experience to accurately make a diagnosis and prevent patient morbidity. Further research nationally is necessary prior to creating a standardized call structure for PGY-2 residents especially with the newly mandatory integrated ophthalmology residency programs.

Side Effects and Adverse Events After Treatment With Teprotumumab for Thyroid Eye Disease: A Retrospective Observational Case Series.

As the use of teprotumumab for thyroid eye disease (TED) becomes more prolific, there remains a scarcity of literature regarding the associated side effects and adverse events of teprotumumab use. The authors present a single-center retrospective, observational case review of TED patients who received at least a single dose of teprotumumab infusion at the oculofacial plastic surgery service between February 2020 and July 2023. The most predominant recollected side effects were fatigue, brittle nails, dry eye symptoms, hair loss, muscle spasms, and dry mouth. Significant adverse events were limited to two cases of a blood clot and a single case of pulmonary embolism. This is the first retrospective study of patient-reported side effects and adverse events experienced by a cohort of teprotumumab users.

Penetrating colored pencil injury with Clostridium bifermentans pre-septal cellulitis: case report, literature review, and treatment algorithm.

The incidence of penetrating orbital injuries from writing instruments continues to rise in the pediatric population. Such injuries can cause significant visual morbidity and have a lifelong psychosocial impact. While the description of graphite pencil-related orbital trauma management is well demonstrated with over 40 reported cases, a lack of consistent management protocol for colored pencil-related injuries. Here, we report an inadvertent penetrating orbital colored pencil injury with progressive mechanical ptosis and pre-septal cellulitis necessitating urgent orbitotomy, debridement, and washout to reduce inflammatory and infectious burden. The wooden body serves as a nidus for polymicrobial infection, and the unique composition of colored pencil cores may lead to inflammatory processes that require vigilant multidisciplinary surgical and medical management reflected in our literature review.

Structural Limits of Orbital Compliance and Treatment Options for Pathologic Orbital Pressure.

PURPOSE: The integrity of the orbit has a finite structural limit due to the compliance of its tissue. The authors investigate these limits to quantify them and inform the treatment of heightened ocular and orbital pressure. METHODS: Cadaveric study with 12 orbits being volumized before randomization of treatment for pathologic levels of ocular and orbital pressure. First-line and second-line treatment was chosen randomly (lateral cantholysis, superior septolysis, inferior septolysis). Prior to treatment, IOP, orbital compartment pressure, and axial globe projection was measured after delivery of each 1cc aliquot and surgical treatment. RESULTS: Orbital compartment pressure and IOP were well correlated (r = 0.99). The average reduction in IOP after treatment averaged a 56.2 mm Hg reduction in IOP. All treatments were statistically equivalent ( p < 0.01). Loss of compliance (P LOC ) was determined when the mean plus 1 standard deviation of change in IOP/ml volume was achieved with simultaneous change in exophthalmometry of <0.5 mm change/ml added volume, indicating an acceleration in pressure in the face of a steady volume. This criteria was met for 11 of 12 orbits. The 12th orbit missed this threshold by 1 mm Hg in IOP. P LOC occurred at an average IOP of 43.0 mm Hg (±5.8 mm Hg, 90% CI) and after an average injection of 13 ml (±1.4 mm, 90% CI). Additionally, lateral cantholysis, superior septolysis, and inferior septolysis were statistically equivalent in reducing IOP after P LOC . CONCLUSIONS: IOP and orbital compartment pressure are excellent proxies for each other in the authors' model. Orbital compliance is a mathematic phenomenon that can be quantified, as evident in this investigation. P LOC can inform timing for orbital decompressions in the presence of heightened IOP. Multiple procedures can be used to extinguish dangerously high orbital compartment pressure.

Efficacy and Safety of Teprotumumab in Patients With Thyroid Eye Disease of Long Duration and Low Disease Activity.

CONTEXT: Early inflammatory thyroid eye disease (TED) can lead to symptomatic chronic disease, including disabling proptosis. Teprotumumab, an insulin-like growth factor-1 receptor (IGF-1R) inhibitor, previously demonstrated efficacy in acute, high-inflammation TED trials. OBJECTIVE: We present data from the first placebo-controlled trial with teprotumumab in chronic/low disease activity TED. METHODS: This randomized double-masked, placebo-controlled trial, conducted at 11 US centers, enrolled adult participants with TED duration of 2 to 10 years, Clinical Activity Score (CAS) ≤ 1 or no additional inflammation or progression in proptosis/diplopia for ≥1 year, proptosis ≥3 mm from before TED and/or from normal, euthyroid/mildly hypo/hyperthyroid, no prior teprotumumab, and no steroids within 3 weeks of baseline. Patients received (2:1) intravenous teprotumumab or placebo once every 3 weeks (total 8 infusions). The primary endpoint was proptosis (mm) improvement at Week 24. Adverse events (AEs) were assessed. RESULTS: A total of 62 (42 teprotumumab and 20 placebo) patients were randomized. At Week 24, least squares mean (SE) proptosis improvement was greater with teprotumumab (-2.41 [0.228]) than with placebo (-0.92 [0.323]), difference -1.48 (95% CI -2.28, -0.69; P = .0004). Proportions of patients with AEs were similar between groups. Hyperglycemia was reported in 6 (15%) vs 2 (10%) and hearing impairment in 9 (22%) vs 2 (10%) with teprotumumab and placebo, respectively. AEs led to discontinuation in 1 teprotumumab (left ear conductive hearing loss with congenital anomaly) and 1 placebo patient (infusion-related). There were no deaths. CONCLUSION: Teprotumumab significantly improved proptosis vs placebo in longstanding/low inflammation TED, demonstrating efficacy regardless of disease duration/activity. The safety profile was comparable to that previously reported.

When the Cost of Vaping Is an Eye: A Case of an Open Globe and Superior Orbital Roof Fracture.

The authors report a penetrating orbitocerebral vape pen injury necessitating a primary enucleation and craniotomy to remove the foreign body fragments. A 31-year-old male presented with acute right vision loss after a modifiable vape pen explosion launched multiple projectile fragments into his right eye. CT revealed a deformed globe with multiple radiodense curvilinear fragments in the superior orbital roof and intracranial space. A right frontal craniotomy and orbitotomy with removal of vape pen fragments, reconstruction of the orbital roof, primary enucleation, and eyelid repair were performed in conjunction with neurosurgery. To the best of the authors' knowledge, this is the first reported penetrating globe injury from a vape pen explosion.

Patient-Reported Outcomes Following Medial Patellofemoral Reconstruction With Peroneus Longus Allografts Demonstrate Good Results.

Purpose: To evaluate the recurrent dislocation risk and patient-reported outcomes of peroneus longus allograft tissue for medial patellofemoral ligament (MPFL) reconstruction. Methods: Patients who underwent MPFL reconstruction with peroneus longus allograft at an academic center between 2008 and 2016 were identified. Record review and patient contact were used to identify any cases of recurrent patellar dislocation and collect patient-reported outcomes scores (Knee injury and Osteoarthritis Outcome Score [KOOS], Norwich Patellar Instability score, Marx activity scale). Patients with 1-year minimum follow-up were included. Outcomes were quantified and the proportion of patients reaching a previously defined patient acceptable symptom state (PASS) for patellar instability was determined. Results: Sixty-one patients (42 female and 19 male) underwent MPFL reconstruction with peroneus longus allograft during the study period. Forty-six patients (76%) with 1-year minimum follow up were contacted at a mean of 3.5 years postoperative. The mean age at time of surgery was 22 ± 7.2 years. Patient-reported outcomes data were available in 34 patients. Mean KOOS subscale scores were as follows: Symptoms 83.2 ± 19.1, Pain 85.2 ± 17.6, Activities of Daily Living 89.9 ± 14.8, Sports 75 ± 26.2, and Quality of Life 72.6 ± 25.7. The mean Norwich Patellar Instability score was 14.9% ± 17.4%. The mean Marx activity score was 6.0 ± 5.2. No recurrent dislocations were noted during the study period. Sixty-three percent of patients who underwent isolated MPFL reconstruction met PASS thresholds in at least 4 of 5 KOOS subscales. Conclusions: The use of a peroneus longus allograft in MPFL reconstruction in conjunction with other indicated procedures results in a low re-dislocation risk and a high proportion of patients meeting PASS criteria for patient-reported outcome scores 3 to 4 years postoperatively. Level of Evidence: IV, case series.

An Orbital Mystery: A Unique Case of an Obsolete Orbital Implant With a Review of Orbital Implant Materials.

Orbital implant materials have evolved greatly over the past century and include but are not limited to metal, ceramic, polymer, silicone, and glass. Knowledge of historically used materials is clinically relevant to patient care as certain materials carry a greater risk of migration, extrusion, infection, and limitations for imaging modalities utilized to visualize adjacent structures. We report an unusual case of an 80-year-old male who presented to our community hospital with seizure-like activity. CT imaging of the brain revealed several white matter and cortex lesions with the largest lesion measuring 2.5 × 2 × 1.9 cm. The patient had a history of enucleation with placement of an orbital implant following a penetrating injury to the left eye at four years of age. Hounsfield scale analysis was read by radiology as being most consistent with a thin metallic shell surrounding the orbital implant. The potential for metallic material was consistent with the implant's age and time of placement. Few reviews on ocular implant materials from this period exist in the current medical literature. A single case report discussing a hollow metal orbital implant with similar-appearing imaging was identified. Due to concern for possible metal implant materials, the patient underwent implant exchange so MRI imaging could safely be performed. Intraoperatively, the implant was identified as a clear, hollow, non-metallic, non-porous polymer sphere. Following surgery, the patient was able to undergo appropriate neuroimaging with subsequent diagnostic biopsy. Current literature reviewing CT or photographic imaging of ocular implant devices prior to the 1940s is limited. This case highlights the importance of detailing materials historically used in orbital implants, their effects on clinical decision-making, and the utility of Hounsfield scale values to identify a material's radiodensity on CT imaging.

Microfluidic live tracking and transcriptomics of cancer-immune cell doublets link intercellular proximity and gene regulation.

Cell-cell communication and physical interactions play a vital role in cancer initiation, homeostasis, progression, and immune response. Here, we report a system that combines live capture of different cell types, co-incubation, time-lapse imaging, and gene expression profiling of doublets using a microfluidic integrated fluidic circuit that enables measurement of physical distances between cells and the associated transcriptional profiles due to cell-cell interactions. We track the temporal variations in natural killer-triple-negative breast cancer cell distances and compare them with terminal cellular transcriptome profiles. The results show the time-bound activities of regulatory modules and allude to the existence of transcriptional memory. Our experimental and bioinformatic approaches serve as a proof of concept for interrogating live-cell interactions at doublet resolution. Together, our findings highlight the use of our approach across different cancers and cell types.

Influence of Patellofemoral Anatomy on Outcomes of Isolated Medial Patellofemoral Ligament Reconstruction for Recurrent Patellar Instability.

Background: Patella alta and elevated tibial tubercle-trochlear groove (TT-TG) distance can predispose patients to lateral patellar dislocations and recurrent instability. Their influence on patient-reported outcomes (PROs) after medial patellofemoral ligament (MPFL) reconstruction is less clear. Hypothesis: We hypothesized that neither moderately increased TT-TG distance nor patella alta would negatively affect PROs after isolated MPFL reconstruction in patients with relatively normal patellar tracking (no large J-sign). Study Design: Cohort study; Level of evidence, 3. Methods: We identified patients who underwent isolated MPFL reconstruction at a single institution between 2008 and 2016. The decision to perform an isolated MPFL reconstruction was at the discretion of the operating surgeon but was not performed in the setting of a large J-sign. Patient characteristics and surgical details were collected, and patients completed the Norwich Patellar Instability Score, Knee injury and Osteoarthritis Outcome Score, and Marx activity score. Patellar height (Caton-Deschamps Index [CDI]) was assessed on preoperative lateral radiographs, and TT-TG distance was measured on preoperative axial magnetic resonance imaging (MRI) scans. Patients were grouped based on CDI and TT-TG distance, and outcomes were compared. Linear regression modeling was performed to determine whether patella alta or elevated TT-TG distance was associated with poorer PRO scores. Results: Of 165 knees in 152 patients who underwent isolated MPFL reconstruction, 115 patients (125 knees; 76%) with minimum 1-year follow-up were contacted at a mean of 5.2 years after surgery. Recurrent dislocation occurred in 5 of 125 knees (4%). Preoperative radiographs were available in 111 knees (89%), and preoperative MRI scans were available in 89 knees (71%). Mean CDI was 1.13, and 35% had a CDI ≥1.20. Mean TT-TG distance was 17.5 mm, and 26% had a TT-TG distance >20 mm. After adjusting for patient age, sex, body mass index, and graft choice, we observed that neither patella alta nor elevated TT-TG distance were associated with poorer PROs. Conclusion: Isolated MPFL reconstruction in the setting of moderately elevated TT-TG distance or patella alta was not associated with worse PROs in this cohort with relatively normal patellar tracking (no large J-sign).

Head and neck arteriovenous malformations: University of Tennessee experience, 2012-2022.

OBJECTIVE: Head and neck arteriovenous malformations (AVMs) are complex lesions that represent a subset of vascular anomalies (VAs). The authors present an analysis of their institutional experience managing these lesions as a multidisciplinary team. METHODS: A retrospective chart review was performed of head and neck AVM patients treated at the authors' institution from 2012 to 2022. Recorded data included patient demographic characteristics, details of clinical presentation, Schöbinger clinical scale and Yakes AVM classification results, and details of all endovascular and surgical treatments. The primary outcome of the study was clinical response to treatment. Angiographic occlusion and complication rates were reported. Chi-square tests were used for comparative statistics. RESULTS: Sixteen patients (9 female, 56%) with AVMs of the head and neck presented from age 3 to 77 years. The Schöbinger stage was stage II in 56% of patients (n = 9) and stage III in 44% of patients (n = 7). The Yakes AVM classification was nidus type (2a, 2b, or 4) in 7 patients (43%) and fistula type (1, 3a, or 3b) in 9 patients (57%). The majority of patients (n = 11, 69.0%) were managed with embolization as the only treatment modality, with an average of 1.5 embolizations/patient (range 1-3). Surgical resection was employed in 5 patients (4 in combination with embolization). Symptom resolution and symptom control were achieved in 69% and 31% of patients, respectively, in the entire cohort. A radiographic cure was demonstrated in 50% of patients. There were no statistical differences in clinical outcomes or radiographic cure rates between patients treated with different modalities. CONCLUSIONS: Head and neck AVMs can be treated successfully with a primarily endovascular management strategy by a multidisciplinary team with the goal of symptomatic control.

Pediatric Orbital Roof Fractures: A Ratio of Orbital Dimensions Correlated to Prevalence of Fracture.

Objective Orbital roof fractures are more likely to occur in younger children, specifically younger than 7 years. Cranium to face ratio decreases with age; however, there is no definition for measurement of the neurocranium or face. We propose using the length of the orbital roof as a measurement of the neurocranium and length of the orbital floor as a tool to estimate midface size. The purpose of this study is to test this measurement as a correlation rate of orbital roof fractures within the pediatric population. Design This is a retrospective study. Setting This study was done at the LeBonheur Children's Hospital. Participants Sixty-six patients with orbital roof fractures were identified and stratified by gender and age, specifically younger than 7 years and 7 years or older. Main Outcome Measures The main outcome measures were orbital roof length, floor length, and ratio thereof. Results Mean orbital roof length was 43.4 ± 3.06 and 45.1 ± 3.94 mm for patients <7 and ≥7 years, respectively ( p = 0.02). Mean orbital floor length was 41.3 ± 2.99 and 47.7 ± 4.19 for patients <7 and ≥7 years, respectively ( p < 0.00001). The mean roof to floor ratio (RTFR) for patients <7 years was 1.051 ± 0.039 and for patients ≥ 7 years was 0.947 ± 0.031 ( p < 0.00001). Conclusion As children age, the relative length of the orbital roof decreases when compared with the orbital floor. The RTFR was more than 1.0 in children younger than 7 years. These differences were statistically significant when compared with children 7 years and older. This measurement shift follows the differences noted in orbital fracture patterns during childhood.

The role of ERNDIM diagnostic proficiency schemes in improving the quality of diagnostic testing for inherited metabolic diseases.

External quality assurance (EQA) is crucial to monitor and improve the quality of biochemical genetic testing. ERNDIM (www.erndim.org), established in 1994, aims at reliable and standardized procedures for diagnosis, treatment and monitoring of inherited metabolic disease (IMD) by providing EQA schemes and educational activities. Currently, ERNDIM provides 16 different EQA schemes including quantitative schemes for various metabolite groups, and interpretive schemes such as diagnostic proficiency testing (DPT). DPT schemes focus on the ability of laboratories to correctly identify and interpret abnormalities in authentic urine samples across a wide range of IMDs. In the DPT schemes, six samples each year are distributed together with clinical information. Laboratories choose and perform the tests needed to reach a diagnosis. Data were collected on 345 samples, distributed to up to 105 laboratories worldwide. Diagnostic proficiency (the % of total points possible for all participating laboratories within a scheme for analysis and interpretation) ranged widely: amino acid disorders (n = 20), range 33%-100%, mean 84%; organic acid disorders (n = 35), range 14%-100%, mean 84%; lysosomal storage disorders (n = 13), range 20%-97%, mean 73%; purine/pyrimidine disorders (n = 9), range 37%-100%, mean 70%; miscellaneous disorders (n = 8), range 17%-100%, mean 65%; no IMD, range 65%-95%, mean 85%. When a sample with the same disorder was distributed in a subsequent survey, performance improved in 75 cases with no improvement seen in 32, suggesting overall improvement of performance. ERNDIM diagnostic proficiency testing is a valuable activity which can help to assess laboratory performance, identify methodological/technical challenges, be informative during quality audits and contribute to a better clinical appreciation of diagnostic uncertainty.

Spontaneous orbital hemorrhage in a case of acute liver failure.

Purpose: To report an unusual case of spontaneous orbital hemorrhage in the setting of DIC and hepatic failure. Observations: A 33-year-old female presented to the Emergency Department (ED) with acute liver failure. During the first week of her hospital admission, she developed unilateral eyelid swelling and proptosis, prompting a consult to ophthalmology. Additional physical examination revealed significantly decreased visual acuity, extraocular muscle restriction, afferent pupillary defect, and increased intraocular pressure. Computed tomography (CT) and ultrasound confirmed the diagnosis of intraorbital hemorrhage. Aggressive management in the form of lateral canthotomy, cantholysis, and septolysis was unable to be performed due to the patient's multiple comorbidities outweighing the potential benefits. Conclusions and importance: This rare phenomenon is unique from previous existing literature in that the timing of the incident limited the therapeutic options for this patient, additional imaging in the form of ultrasound was utilized in the work-up, and to our knowledge this is the second case of spontaneous orbital hemorrhage as a complication of disseminated intravascular coagulation (DIC) caused by hepatic failure.

Opioid Prescribing Patterns of Optometrists in the Medicare Part D Database.

SIGNIFICANCE: This study aimed to determine the prescription rates and prescribing trends of opioids by optometrists in the Centers for Medicare & Medicaid Services (CMS) part D database from 2013 to 2017 and to assess opioid prescribing patterns of U.S. optometrists in the CMS part D database. METHODS: With internal review board approval, a retrospective observational cohort study was conducted on optometrists listed in the CMS part D database who prescribed opioids from 2013 to 2017. RESULTS: There was an average of 26,477 optometrists in the CMS database from 2013 to 2017, of which 5.9% prescribed opioids. Of those prescribing opioids, optometrists wrote an average of 5.9 opioid prescriptions per year. Those writing greater than 10 opioid prescriptions averaged 24.2 annually. Overall, of opioid prescribing optometrists, opioid prescriptions comprised 7% of prescriptions written per year. CONCLUSIONS: Most optometrists do not prescribe opioids, and the vast majority of those who do write few opioid prescriptions. The total number of optometrists prescribing opioids and the total number of opioid prescriptions declined from 2013 to 2017. Further investigation into the opioid prescribing practices by optometrists will help better understand specific pain needs, as opioid prescribing patterns may differ depending on patient population.

Long-acting opioid prescribing patterns of ophthalmic plastic surgeons in the medicare Part D database.

PURPOSE: To assess extended release/long acting (ER/LA) opioid prescribing patterns among ophthalmic plastic surgeons in the Centers for Medicare and Medicaid Services (CMS) Part D database. METHODS: A retrospective observational cohort study was conducted on oculoplastic surgeons in the CMS Part D database who prescribed ER/LA opioids from 2013 to 2017. American Society of Ophthalmic Plastics and Reconstructive Surgery (ASOPRS) and non-ASOPRS surgeons were analyzed as groups. Prescribers were also analyzed based on gender and practice experience. RESULTS: Oculoplastic surgeons (64 ASOPRS and 78 non-ASOPRS) were responsible for 1,177 ER/LA opioid prescriptions from 2013 to 2017. ASOPRS members accounted for 4.6% and non-ASOPRS members accounted for 7.5% of all ER/LA opioids prescribed by ophthalmologists over the study period (p= .02). The total number of ASOPRS and non-ASOPRS members prescribing ER/LA opioids decreased by 52% (p= .10) and 58% (p= .07) from 2013 to 2017 respectively. CONCLUSION: ER/LA opioids are indicated for treatment of chronic pain and may be appropriately prescribed by the oculoplastic surgeon in certain circumstances, however due to the higher risk of overdose injury, those circumstances must be defined and justified. While a relatively small number of oculoplastic surgeons (10.6% ASOPRS and 19.6% non-ASOPRS) prescribed ER/LA opioids from 2013 to 2017, non-ASOPRS oculoplastic surgeons wrote 23.5% more ER/LA opioid prescriptions over the study period. Over the 5-year study period there was a general decline in the prescribing of ER/LA opioids by oculoplastic surgeons. Reviewing the prescribing practices of oculoplastic specialists, regardless of professional affiliation, is necessary to understand the role of ER/LA opioids for all of ophthalmology.