Epidemiology of Macular Edema in Uveitis

Corticosteroids for the Management of Uveitic Macular Edema: A Comprehensive Review

Uveitis, which refers to the inflammation of the uveal tract and surrounding structures in the eye, poses a significant risk of vision impairment, with macular edema (UME) being a prevalent complication. The current statement reviews UME's prevalence, pathogenesis, diagnosis, and management strategies, focusing on the utility of systemic and local corticosteroid therapy. Corticosteroids, with their multifaceted effects on inflammatory pathways, serve as the cornerstone of UME treatment. Various administration routes, including topical, periocular, intraocular, and systemic, are employed based on the anatomical type and severity of inflammation. The efficacy of different corticosteroid formulations, such as difluprednate, triamcinolone acetonide, dexamethasone implant, and fluocinolone acetonide implant, is evaluated through clinical trials and retrospective studies. Additionally, the role of corticosteroid-sparing treatments, including antimetabolites like methotrexate and mycophenolate mofetil, is explored. Emerging techniques, such as suprachoroidal space triamcinolone acetonide administration, offer promising alternatives for managing UME. Through a thorough examination of current evidence, this review provides valuable insights into optimizing the management of UME and improving visual outcomes in patients with uveitis.

Treatment of Noninfectious Uveitic Macular Edema with Periocular and Intraocular Corticosteroid Therapies: A Report by the American Academy of Ophthalmology

PURPOSE

To review the evidence on the effectiveness and complications of periocular and intraocular corticosteroid therapies for noninfectious uveitic macular edema.

METHODS

A literature search of the PubMed database was conducted last in December 2021 and a post-assessment search was conducted in March 2023. The searches were limited to articles published in English and no date restrictions were imposed. The combined searches yielded 739 citations; 53 articles were selected for inclusion because the studies (1) evaluated periocular corticosteroid injection, intraocular corticosteroid injection or implant, suprachoroidal corticosteroid injection, or a combination thereof for uveitic macular edema; (2) had outcomes that included visual acuity (VA) or macular edema assessed clinically or imaged by OCT or fluorescein angiography; and (3) included more than 20 patients.

RESULTS

This assessment reviewed 23 articles that provided level I or level II evidence from 18 studies on the use of periocular, suprachoroidal, and intravitreal triamcinolone acetonide injections and intravitreal dexamethasone and fluocinolone acetonide implants or inserts in noninfectious uveitic macular edema. These reports consistently demonstrated that all investigated periocular and intraocular corticosteroid therapies improved VA, macular structure, or both. One comparative study showed that intravitreal triamcinolone acetonide injection and the dexamethasone intravitreal implant had effectiveness superior to that of periocular triamcinolone acetonide injection for these outcomes. As a group, the studies highlighted the potential for these therapies to elevate intraocular pressure and to accelerate cataract formation.

CONCLUSIONS

The published literature provides high-quality evidence that periocular and intraocular corticosteroid therapies are effective and safe for the treatment of noninfectious uveitic macular edema. However, information on the relative effectiveness and complication rates across the different therapies is limited.

FINANCIAL DISCLOSURE(S)

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

Ocular Complications of Intermediate Uveitis

Intermediate uveitis (IU) in an intraocular inflammation that predominantly affects the vitreous. It typically manifests as chronic low-grade inflammation, mainly affecting children and young adults. Uncontrolled chronic intraocular inflammation carries a high risk of visual loss. IU, despite being a low-grade inflammation, is among the sight-threatening conditions owing to its intrinsically-associated vision-robbing ocular complications. It can cause early and late-onset ocular complications affecting the anterior and posterior segments of the eye. 40-60% of the patients who suffer from IU will develop at least one ocular complication during the disease course. Prompt management and long-term monitoring are vital for the early detection of ocular complications and timely intervention. Proactive screening programs are essential in children because of the occult nature of IU in the pediatric age group and the high prevalence of complications at the initial visit. This review provides a comprehensive panorama of anterior segment complications, namely, band keratopathy, corneal endotheliopathy, posterior synechiae, and cataract as well as of posterior segment complications including macular edema, retinoschisis, retinal detachment, vitreous hemorrhage, vasoproliferative tumor, optic neuritis, and papillitis, in addition to glaucoma and hypotony.

Prevalence, clinical characteristics, and independent predictors of uveitic macular edema in an Asian population: a retrospective cohort study

BACKGROUND

To determine the prevalence, clinical characteristics, and independent predictors of uveitic macular edema (UME) in patients with intermediate, posterior and panuveitis.

METHODS

We retrospectively reviewed the records of patients with intermediate, posterior, and panuveitis who underwent macular assessment using optical coherence tomography between January 2015 and February 2020. The prevalence of UME and clinical characteristics of the patients were described. Predictors of UME were identified using multivariate regression analysis.

RESULTS

A total of 349 patients were included. The mean age was 41 years, female: male ratio was 1.3:1. The prevalence of UME was 51.9%. UME was found in 33.9%, 56.9%, and 54.1% of the intermediate, posterior, and panuveitis cases, respectively. Among patients with UME, 47% had infectious uveitis, 32.6% had idiopathic uveitis, and 20.4% had immune-mediated uveitis. Diffuse macular edema was the most frequently observed pattern (36.5%). Multivariate analysis showed that factors independently associated with UME included age at uveitis onset (adjusted odds ratio [aOR] 1.01, 95% confidence interval [CI] 1.00-1.03, P = 0.036), PU and panuveitis compared with intermediate uveitis (aOR 2.09, 95% CI 1.14-3.86, P = 0.018), and infectious uveitis compared with noninfectious uveitis (aOR 2.13, 95% CI 1.34-3.37, P = 0.001).

CONCLUSIONS

Increasing age at uveitis onset, posterior/panuveitis, and infectious etiology are predictive factors for UME in patients with intermediate, posterior and panuveitis.

Mechanisms of blood-retinal barrier disruption related to intraocular inflammation and malignancy

Blood-retinal barrier (BRB) disruption is a common accompaniment of intermediate, posterior and panuveitis causing leakage into the retina and macular oedema resulting in vision loss. It is much less common in anterior uveitis or in patients with intraocular lymphoma who may have marked signs of intraocular inflammation. New drugs used for chemotherapy (cytarabine, immune checkpoint inhibitors, BRAF inhibitors, EGFR inhibitors, bispecific anti-EGFR inhibitors, MET receptor inhibitors and Bruton tyrosine kinase inhibitors) can also cause different types of uveitis and BRB disruption. As malignant disease itself can cause uveitis, particularly from breast, lung and gastrointestinal tract cancers, it can be clinically difficult to sort out the cause of BRB disruption. Immunosuppression due to malignant disease and/or chemotherapy can lead to infection which can also cause BRB disruption and intraocular infection. In this paper we address the pathophysiology of BRB disruption related to intraocular inflammation and malignancy, methods for estimating the extent and effect of the disruption and examine why some types of intraocular inflammation and malignancy cause BRB disruption and others do not. Understanding this may help sort and manage these patients, as well as devise future therapeutic approaches.

Intravitreal fluocinolone acetonide 0.19 mg (ILUVIEN®) in patients with non-infectious uveitis: real-world effectiveness and safety outcomes at 12 months

PURPOSE

This study assessed the effectiveness of the 0.19-mg fluocinolone acetonide (FAc) implant by multimodal measurements in patients with non-infectious uveitis (NIU) in a real-world setting in Spain.

METHODS

A prospective study of patients who had NIU including uveitic macular oedema (UME) with ≥ 12 months follow-up was done. Exclusion criteria include infectious uveitis and uncontrolled glaucoma or ocular hypertension requiring more than 2 medications. Effectiveness was assessed using a multicomponent outcome measure that included nine outcomes. Effectiveness was defined as all components being met at every timepoint. Secondary outcome measures were onset or progression of glaucoma and investigator-reported adverse events.

RESULTS

Twenty-six eyes from 22 patients were included, with 96.2% having an indication including UME. During the 12-month study, the FAc implant was effective in 15 (57.7%) eyes, reaching effectiveness as soon as 2 weeks post-implantation. Mean best-corrected visual acuity and mean central macular thickness (CMT) were significantly improved vs. baseline at all timepoints (all comparisons p < 0.01). During the 12-month study, inflammation markers (anterior chamber cells and vitreous haze) had also significantly declined. Factors predicting effectiveness at month 12 were systemic corticosteroid dose pre-FAc, higher immunomodulatory therapy (IMT) load at baseline and thicker retinal nerve fibre layer (RNFL) at baseline (all p < 0.05). Factors predicting failure were male gender, thinner RNFL at baseline and treatment ineffectiveness at 1 month (all p < 0.05). In parallel, corticosteroid and IMT use also declined significantly. No significant increase in IOP was detected.

CONCLUSION

The FAc implant is safe and effective at treating NIU over 12 months in a real-world setting in Spain.

Intravitreal dexamethasone implants facilitate the management of refractory Behçet's uveitis with vasculitis

To investigate the efficacy and safety of dexamethasone (DEX) implant, Ozurdex ®, as an adjunctive treatment for refractory Behçet's uveitis (BU), a total of 61 patients (80 eyes) were included in this cross-sectional study and divided into the non-DEX and DEX groups. After >12 months of treatment, the improvement in the fluorescein angiography score and vitritis score was significantly higher in the DEX group than in the non-DEX group. Although the posterior capsule opacification score was exacerbated, the rate of low-dose systemic glucocorticoid was higher and the relapse times were fewer in the DEX group. Therefore, Ozurdex® is an effective and safe option for patients with BU that are refractory to systemic immunosuppressant treatments by controlling vasculitis, stabilizing vitreous inflammation, preventing recurrence, and reducing daily glucocorticoid doses.

Long-Term Safety and Efficacy of Pars Plana Vitrectomy for Uveitis: Experience of a Tertiary Referral Centre in the United Kingdom

AIM

To evaluate the effectiveness of pars plana vitrectomy (PPV) without macular intervention on uveitis eyes with persistent vitreous inflammation/opacities in terms of visual acuity (VA), intraocular inflammation and macular profile.

METHODS

We carried out a single-center retrospective study of patients with uveitic eyes that underwent PPV without intervention on the macula due to persistent vitreous inflammation/opacities. The primary outcome measures were best-corrected visual acuity (BCVA), intraocular inflammation and macular profile at 3, 12 and 24 months after surgery.

RESULTS

Twenty-seven eyes of twenty-six patients were analyzed. Overall, 77.8% had an improvement of VA (55% by 0.3 LogMAR or more); 62.5% of patients had no intraocular inflammation, and the number of patients on systemic steroids and second-line immunosuppressives was reduced by 26% at 12 months; 87.5% of patients had resolution of macular oedema at 12 months.

CONCLUSION

PPV for persistent vitreous inflammation/opacities is safe and effective, showing beneficial outcomes in terms of improvement of BCVA and the reduction in inflammation.

Correlation between Morphological Characteristics of Macular Edema and Visual Acuity in Young Patients with Idiopathic Intermediate Uveitis

Background and Objectives: Macular edema (ME) is a common complication of intermediate uveitis (IU). It is often responsible for a decrease in visual acuity (VA). Three distinct patterns of macular edema have been described in intermediate uveitis, namely, cystoid macular edema (CME), diffuse macular edema (DME), and serous retinal detachment (SRD). The current study aims to describe the characteristics of macular edema in young patients with idiopathic intermediate uveitis and to correlate its features with VA using spectral domain optical coherence tomography (SD-OCT). Materials and Methods: A total of 27 eyes from 18 patients with idiopathic IU complicated by ME were included in this retrospective study. All patients underwent SD-OCT; data were gathered at the onset of ME. Best-corrected VA (BCVA) was correlated with the morphological features of ME. Results: BCVA was negatively correlated with Ellipsoid Zone (EZ) disruption (p = 0.00021), cystoid pattern (p = 0.00021), central subfield thickness (CST) (p < 0.001), and serous retinal detachment (0.037). Conclusions: In ME secondary to idiopathic IU, VA negatively correlates with Ellipsoid Zone disruption and increases in CST. Moreover, vision is influenced by the presence of cysts in the inner nuclear and outer nuclear layers and by the neuroepithelium detachment.

Tocilizumab in Juvenile Idiopathic Arthritis Associated Uveitis, a Narrative Review

Juvenile idiopathic arthritis (JIA) associated uveitis (JIA-U) is the most common extra-articular manifestation of JIA, affecting 10–15% of patients, especially in oligoarticular JIA where its course may be faint. Therefore, JIA-U is one of the most challenging pediatric uveitis, associated with major ocular morbidity and possibly leading to irreversible structural ocular damage and to vision-threatening complications. Adequate management is crucial for avoiding visual impairment complications. Since the introduction of biologic disease modifying anti-rheumatic drugs (bDMARDS), the visual prognosis of JIA-U has dramatically improved over the decades. Tumor necrosis factor-α (TNF-α) blockers are the most used bDMARDs in treating JIA-U with large evidence of efficacy. However, inadequate response to these agents, either due to intolerance or inefficacy, may be observed, requiring a swap to other classes of immunosuppressive agents, including anti-IL-6, anti-CD20, and, more recently, JAK inhibitors. Tocilizumab is a humanized monoclonal antibody to the interelukin-6 receptor preventing IL-6 from binding to its soluble and membrane-bound receptors. A growing body of literature provides promising results about the efficacy of intravenous and subcutaneous tocilizumab in the treatment of JIA-U. A narrative review of the literature on this topic will improve our knowledge on the potential use of tocilizumab in JIA-U.

Management of inflammation after the cataract surgery

PURPOSE OF REVIEW

To review most recent studies and clinical trials regarding pathogenesis, treatment, and prevention of inflammation after the cataract surgery.

RECENT FINDINGS

FLACS gave opportunity to evaluate inflammatory cytokines in the aqueous humour right after the laser procedure, which led to acknowledging the inflammation pathogenesis during the phacoemulsification. Although there is still a lack of evidence, which would prove the long-term benefit of NSAIDs, they are indicated and effective when risk factors for PCME are present. PREMED studies showed that combination of NSAID and steroids after the surgery for healthy subjects is cost-effective. The triamcinolone injection together with topical steroids and NSAIDs for diabetic patients after the cataract surgery was the most cost-effective in preventing PCME according to the PREMED. Dropless cataract surgery is another emerging topic: dexamethasone implants and suspensions look promising as we await more clinical trials with drug-loaded IOLs.

SUMMARY

Inflammation after the cataract surgery can be prevented, and these methods are one of the most essential topics with growing phacoemulsification rate. Topical NSAIDs are cost-effective not only for patients with risk factors for PCME but also for healthy subjects. New dropless techniques are being successfully introduced in the clinical practice.

Suprachoroidal Injection of Triamcinolone Acetonide Injectable Suspension for the Treatment of Macular Edema Associated With Uveitis in the United States: A Cost-Effectiveness Analysis

OBJECTIVES

Suprachoroidal injection of triamcinolone acetonide is the first Food and Drug Administration-approved treatment for macular edema associated with uveitis. A cost-effectiveness analysis was performed comparing this treatment with best supportive care (BSC) for the management of this indication from US Medicare and commercial payer perspectives.

METHODS

A patient-level simulation was developed per the patient characteristics and changes in best-corrected visual acuity letter scores observed in a phase III study of triamcinolone acetonide (PEACHTREE). The wholesale acquisition cost of triamcinolone acetonide was $1650/injection; suprachoroidal injection cost was assumed at $200/injection. Healthcare costs were informed by a US claims-based analysis. Mortality risk associated with severe vision loss and blindness was modeled by applying a hazard ratio to all-cause mortality rates of the US general population. Health-related quality of life weights, obtained from a regression model fitted to the Visual Function Questionnaire-25 data from PEACHTREE, were applied based on the best-corrected visual acuity scores of both eyes. Costs (2020 US dollar) and benefits were discounted at 3% annually. Incremental cost-effectiveness ratios were estimated over a 10-year horizon.

RESULTS

In the base-case, the incremental cost-effectiveness ratio comparing triamcinolone acetonide with BSC was $28 479 per quality-adjusted life-year gained. The wholesale acquisition cost for triamcinolone acetonide for suprachoroidal use was ∼68%, ∼56%, and ∼27% below the willingness-to-pay thresholds of $150 000, $100 000, and $50 000 per quality-adjusted life-year gained, respectively. Results were robust in sensitivity and scenario analyses.

CONCLUSIONS

Triamcinolone acetonide for suprachoroidal use is cost-effective compared with BSC for patients with macular edema associated with uveitis.

Comparison of hyperreflective foci in macular edema secondary to multiple etiologies with spectral-domain optical coherence tomography: An observational study

Background

Hyperreflective foci (HRF) features in macular edema associated with different etiologies may indicate the disease pathogenesis and help to choose proper treatment. The goal of this study is to investigate the retinal microstructural features of macular edema (ME) secondary to multiple etiologies with spectral-domain optical coherence tomography (SD-OCT) and analyze the origin of HRF in ME.

Methods

This was a retrospective study. SD-OCT images were reviewed to investigate macular microstructural features such as the number and distribution of HRF and hard exudates and the internal reflectivity of the cysts. The differences in microstructural features between groups and the correlations between the number of HRF and other parameters were analyzed.

Results

A total of 101 eyes with ME from 86 diabetic (diabetic macular edema, DME) patients, 51 eyes from 51 patients with ME secondary to branch retinal vein occlusion (branch retinal vein occlusion-macular edema, BRVO-ME), 59 eyes from 58 central retinal vein occlusion (central retinal vein occlusion-macular edema, CRVO-ME) patients, and 26 eyes from 22 uveitis (uveitic macular edema, UME) patients were included in this study. The number of HRF, the frequency of hard exudates and the enhanced internal reflectivity of the cysts were significantly different among the groups. The number of HRF in the DME group was significantly higher than that in the other groups (all P < 0.05). The frequency of hard exudates and enhanced internal reflectivity of the cysts in the DME group were significantly higher than ME secondary to other etiologies (all P < 0.001). Within the DME group, the number of HRF in the patients with hard exudates was significantly higher than that in the patients without hard exudates (P < 0.001).

Conclusion

HRF detected with SD-OCT were more frequent in DME patients than in BRVO-ME, CRVO-ME, or UME patients. The occurrence of HRF was correlated with the frequency of hard exudates. HRF may result from the deposition of macromolecular exudates in the retina, which is speculated to be a precursor of hard exudates.

Prevalence of Positive QuantiFERON-TB Test among Sarcoid Uveitis Patients and its Clinical Implications in a Country Non-endemic for Tuberculosis

AIM

To report on the prevalence and clinical implications of positive QuantiFERON-TB (QFT) test results in the diagnostic evaluation of a cohort of consecutive sarcoid uveitis patients in France.

DESIGN

Retrospective cross-sectional study.

METHODS

This study included consecutive sarcoid uveitis patients who all underwent QFT testing.

RESULTS

A total of 234 patients were included in the study, among them 28 (12%) were QFT-positive. Previously treated tuberculosis (TB) was documented in 2 patients. QFT-positive patients were older (59 ± 16 years vs. 51 ± 18 years, p = .025) and more in proportion to suffer from chronic uveitis and panuveitis compared to QFT-negative patients. Moderate and severe visual impairment were significantly more frequent in the QFT-positive group (35.7% vs. 18.9%, p = .049 and 25.0% vs. 9.2%, p = .022, respectively).

CONCLUSION

The significant proportion of QFT-positive patients (12%) in this large series of sarcoid uveitis patients makes us suggest not to exclude the diagnosis of sarcoidosis in case of positive QFT in a low-endemic country for tuberculosis, and to manage these patients early by initiating without delay systemic steroids associated with latent tuberculosis therapy.

Persistence of Juvenile Idiopathic Arthritis-Associated Uveitis in Adulthood: A Retrospective Study

Background: Juvenile idiopathic arthritis (JIA) is a rheumatic condition of childhood that is frequently associated with anterior chronic uveitis. Evidence suggests that uveitis may persist up to adulthood in some cases, possibly causing severe visual impairment. Methods: We conducted a retrospective study on a series of patients aged 16 years or older with JIA-related active uveitis who were referred to the Uveitis Service of Sapienza University of Rome from 1990 to 2019 to evaluate the characteristics of ocular disease in patients with JIA-associated uveitis (JIA-U) who still exhibit uveitis in adulthood. Data on clinical features, treatment, complications and visual outcomes were collected. Results: Twenty adults (85% female; median age 23.4 ± 6.6 years, range 16−38 years) with ongoing uveitis (35 eyes) were identified. The median age at JIA onset was 6.15 ± 2.9 years (range 2−10), and uveitis onset was 8.7 ± 4.7 years (range 3−20). The patients were observed in a median follow-up of 16 ± 7.7 years (range 4−35). Fifty-seven percent of affected eyes (20 eyes) had good visual acuity (>0.4 logMAR), while eleven percent of affected eyes (4 eyes) were blind (≤20/200). Uveitis required topical steroids and mydriatic/cycloplegic in all cases. Orbital steroid injection was performed in 13 eyes. Systemic corticosteroids and biologic drugs were used in 14 patients. Conclusions: Although the visual prognosis of JIA-U has improved in recent years, persistent uveitis up to adulthood is still observed. Therefore, protracted follow-up of JIA-U patients is warranted because of the high burden of delayed visual complications.

Measuring Inflammation in the Vitreous and Retina: A Narrative Review

Uveitis consists of a group of syndromes characterised by intraocular inflammation, accounting for up to 15% of visual loss in the western world and 10% worldwide. Assessment of intraocular inflammation has been limited to clinician-dependent, subjective grading. Developments in imaging technology, such as optical coherence tomography (OCT), have enabled the development of objective, quantitative measures of inflammatory activity. Important quantitative metrics including central macular thickness and vitreous signal intensity allow longitudinal monitoring of disease activity and can be used in conjunction with other imaging modalities enabling holistic assessment of ocular inflammation. Ongoing work into the validation of instrument-based measures alongside development of core outcome sets is crucial for standardisation of clinical trial endpoints and developing guidance for quantitative multi-modal imaging approaches. This review outlines methods of grading inflammation in the vitreous and retina, with a focus on the use of OCT as an objective measure of disease activity.

Synergistic Effect of Combined Sub-Tenon Triamcinolone and Intravitreal Anti-VEGF Therapy for Uveitic Macular Edema

Purpose

To investigate effects of intravitreal anti-VEGF in combination therapy with sub-Tenon triamcinolone acetonide (STA) injection for uveitic macular edema (UME).

Design

A single-center, retrospective cohort study.

Methods

The medical records were obtained for 65 eyes of 65 patients with UME. Of which, 32 eyes received combined anti-VEGF with STA injection, and 33 eyes received 40 mg of STA injection alone. The primary outcome was the reduction of central macular thickness (CMT) measured with optical coherence tomography (OCT). Resolution rate of clinical UME and changes of best corrected visual acuity (BCVA) over 24 weeks were secondary outcomes.

Results

There was a significantly greater reduction of CMT with the combination treatment than with STA alone at 1-week (β = −157.9, P < 0.001) and 1-month (β = −53.1, P = 0.019) after injection. The cumulative incidence of macular edema resolution of all eyes was 87.7%, with 90.6% (29/32) in the combined group and 84.8% (28/33) in the STA group, respectively. More incidence of UME resolution was observed in the combined group than the STA group after 1 week (71.9% vs 15.2%, P < 0.001) and 4 weeks (84.4% vs 54.5%, P = 0.009), respectively. BCVA was better for the combination treatment than STA alone at 1-week (β = −0.085, P = 0.070) and 1-month (β = −0.108, P = 0.019) after injection, respectively. Increased intraocular pressure (>25 mmHg) was observed in 4 eyes (12.5%) in the combined group and 5 eyes (15.2%) in the STA group, respectively.

Conclusion

Combined intravitreal anti-VEGF and STA is superior to STA alone for reduction of UME and visual restoration. Addition of anti-VEGF did not increase risk for steroid-induced elevation of intraocular pressure over 6 months.

The Trend of Drug Therapy on Uveitic Macular Edema: A Bibliometric Analysis of the 100 Most Cited Articles

Background

Macular edema is the most common cause of impaired vision due to uveitis. Although various medications are available, not all uveitis patients with macular edema are satisfied with the treatment results. Therefore, solving this gap becomes the utmost concern worldwide. This study attempted to use bibliometric analysis to compare the valuable information in the top 100 highly cited studies in the field of drug therapy for uveitic macular edema (UME) and then determine the research hot spots and trends in this field.

Methods

In this study, the Science Citation Index Expanded (SCIE) of Web of Science (WOS) was used to collect the top 100 most cited studies on UME and analyze the literature from different countries/regions, institutions, and journals. The visualization knowledge maps is generated by VOSviewer and Citespace software.

Results

The top 100 highly cited studies are from 34 countries/regions. The United States has the largest number of publications, followed by the England, Spain and Germany. The top three institutions publishing highly cited literature are all from the England: University of London, University College London, and Moorfields Eye Hospital NHS Foundation Trust. Ophthalmology is the most widely published journal with 14 papers. The total number of citations is 1,371, meaning that Ophthalmology is the most authoritative journal in the field of UME drug therapy. The top two articles with the most cited times are from the United States, accounting for 36.5% of the total cited times of the top 10 articles. Keywords were divided into three clusters: the corticosteroid administration pathway, biological agents, and clinical trials. Uveitis, cystoid macular edema, efficacy, dexamethasone, and triamcinolone acetonide appeared more frequently in keywords. Researches on local and long-acting drug has gradually becoming the hot spots and trends.

Conclusion

This study concludes that bibliometric analysis can intuitively and quickly obtain the frontiers and hot spots of research in the field of UME drug therapy. Corticosteroid administration, biological agents, and clinical trials are considered the potential focus of future research.

Increased vitreous levels of B cell activation factor (BAFF) and soluble interleukin-6 receptor in patients with macular edema due to uveitis related to Behçet's disease and sarcoidosis

PURPOSE

Uveitis accounts for 10-15% of all cases of blindness in the developed world. Uveitic macular edema (UME) is a primary cause of permanent visual impairment in patients with uveitis. Because proinflammatory mediators elicit inflammation and lead to UME, we determined the profiles of proinflammatory mediators associated with complications, such as ME, in the vitreous humor of patients with panuveitis related to Behçet's disease (BD) and sarcoidosis.

METHODS

In this retrospective study, we enrolled 21 patients with uveitis, including 6 with BD and 15 with sarcoidosis, and 15 patients with idiopathic epiretinal membrane (iERM) at the Department of Ophthalmology, Kyushu University Hospital, between January 2008 and April 2016. Vitreous concentrations of 32 proinflammatory mediators, including cytokines and soluble receptors of tumor necrosis factor (TNF) and interleukin (IL)-6 families, were assessed using a bead-based multiplex assay and their association with clinical data was examined.

RESULTS

The levels of proinflammatory mediators, including a proliferation-inducing ligand (APRIL), B cell activating factor belonging to the TNF family (BAFF), soluble cluster of differentiation 30 (sCD30), soluble TNF receptor-1 (sTNFR1), sTNFR2, TNF-α, IL-6, and soluble IL-6 receptor-α (sIL-6Rα), were significantly higher in patients with uveitis. With regard to clinical parameters in patients with uveitis, vitreous levels of BAFF and sIL-6Rα were prominently elevated in patients with UME compared to in those without UME (P < 0.01, respectively).

CONCLUSIONS

Our results suggest that elevated vitreous levels of BAFF and sIL-6Rα are associated with the pathogenesis of UME in patients with panuveitis related to BD and sarcoidosis.

Outcomes of uveitic macular edema in the First-line Antimetabolites as Steroid-sparing Treatment (FAST) Uveitis Trial

PURPOSE

To evaluate the outcomes of uveitic macular edema at 6 months and 12 months in patients treated with methotrexate or mycophenolate mofetil.

DESIGN

Subanalysis of a block-randomized, observer-masked, multi-center clinical trial.

SUBJECTS/PARTICIPANTS

Patients were enrolled into the First-line Antimetabolites as Steroid-sparing Treatment (FAST) uveitis trial between August 2013 and August 2017.

METHODS/INTERVENTION/TESTING

Patients were randomized to oral methotrexate 25mg weekly or mycophenolate mofetil 1.5g twice daily for 12 months, along with a corticosteroid taper. In addition to standardized clinical examination, all patients underwent spectral domain optical coherence tomography imaging at each visit. At the 6-month primary endpoint, patients who achieved treatment success continued the same treatment for a subsequent 6 months and treatment failures switched to the other treatment group.

MAIN OUTCOME MEASURES

Pre-specified primary outcome at 6 months and 12 months outcomes of central subfield thickness and visual acuity.

RESULTS

Of 216 patients in the FAST Trial, 42 eyes of 30 patients in the methotrexate group and 55 eyes of 41 patients in the mycophenolate group had uveitic macular edema. Baseline median central subfield thickness was 359μm and 342μm in the methotrexate and mycophenolate groups, respectively. At 12 months, for those who stayed on the same treatment, macular thickness decreased from baseline by 23 μm (IQR, -39.0 to 13) and 18 μm (IQR, -68.5 to 9), in the methotrexate and mycophenolate groups, respectively, (P=0.76). In patients who switched treatment at 6 months, macular thickness decreased from baseline by 12.5 μm (IQR, -29.8 to -2.3) and 92 μm (IQR, -240 to -18) in the methotrexate and mycophenolate groups, respectively, (P=0.23). At 12 months, 7/19 (37%) eyes on methotrexate had resolution of macular edema compared to 15/25 (60%) eyes on mycophenolate (P=0.10). For those that switched treatments, 8/17 (47%) eyes on methotrexate and 6/11 (55%) eyes on mycophenolate had improvement of macular edema, (P=0.92) CONCLUSIONS: Treatment with methotrexate or mycophenolate mofetil for uveitic macular edema results in similar improvements in macular thickness at 6 and 12 months. At 12 months, approximately half of eyes in each antimetabolite group still had persistent macular edema.

Clinical Evaluation of Siponimod for the Treatment of Secondary Progressive Multiple Sclerosis: Pathophysiology, Efficacy, Safety, Patient Acceptability and Adherence

INTRODUCTION

A number of disease-modifying therapies have been approved for use in relapsing-remitting multiple sclerosis (MS) in the past two decades. However, only few treatment options are available for patients with secondary progressive multiple sclerosis (SPMS). Siponimod has recently been approved for use in patients with active forms of SPMS (who experience clinical relapses or new lesions on MRI superimposed on secondary progression independent of relapse activity).

OBJECTIVE

The aim of this article is to provide a comprehensive review on the mechanism of action, efficacy, safety, cost effectiveness and patient adherence with siponimod.

METHODS

We performed a PubMed search using the search terms: "siponimod", "secondary progressive multiple sclerosis", "sphingosine 1-phosphate modulators". Titles and abstract were screened and selected for relevance to the key section of this article.

FINDINGS

Siponimod is an oral sphingosine-1-phosphate receptor (S1PR) modulator with selectivity to S1PR-1 and 5. Modulation of this receptor on lymphocytes causes its internalization and degradation, preventing their egress from lymphoid tissues to the blood. In the pivotal Phase 3 randomized controlled trial EXPAND, siponimod was superior to placebo in reducing the risk of disability progression confirmed at 3 and 6 months, as well as the development of new MRI lesions and the rate of brain volume loss. Secondary analysis also showed a benefit on measures of cognitive functioning. The risk of lymphopenia and first-dose bradycardia appears to be lower with siponimod compared to non-selective S1P1R modulators. Different CYP2C9 genotypes affect the metabolism of siponimod; hence, genetic testing is required to adapt the titration and final dose accordingly.

CONCLUSION

Long-term extension and real-world studies will allow further evaluation of efficacy and safety in this population. Future research should focus on better defining SPMS, and identifying biomarkers of progression and outcome measures of treatment response in this category of patients.

Intravitreal fluocinolone acetonide 0.19 mg (Iluvien®) for the treatment of uveitic macular edema: 2-year follow-up of 20 patients

PURPOSE

To evaluate intravitreal 0.19 mg fluocinolone acetonide implant (FAi) (Iluvien®) for the treatment of chronic non-infectious uveitis with associated cystoid macular edema (CME).

METHODS

A retrospective review of medical reports from a single Danish tertiary centre including 20 patients (20 eyes), treated with 0.19 mg FAi for non-infectious uveitic CME. The primary endpoints were change in best corrected visual acuity (BCVA) and central retinal thickness (CRT). The secondary endpoints were recurrence rate, change in systemic treatment, and intraocular pressure (IOP).

RESULTS

Mean follow-up of the 20 eyes was 2.3 ± 1.1 years. BCVA improved at 6 (p = 0.13), 12 (p = 0.05), 18 (p = 0.03), and 24 months and CRT decreased at 6 (p = 0.004), 12 (p = 0.006), 18, and 24 months after 0.19 mg FAi. Within 18 months after implantation, four of 14 patients (28.6%) relapsed. Three of five patients discontinued systemic corticosteroids within 4 months and one patient continued with reduced dose. Five of 10 patients receiving disease-modifying antirheumatic drugs (DMARDs) at time of implantation discontinued within 1 year. No patients started new systemic treatment. Eight eyes were treated with topical IOP-lowering medication at the time of implantation, of these two later underwent trabeculectomy. There were no complications associated with previous glaucoma surgery.

CONCLUSION

This long-term follow-up study showed that intravitreal treatment with 0.19 mg FAi should be considered in the treatment of chronic non-infectious uveitic CME in selected patients. This treatment is safe even in selected glaucoma patients and may offer reduction or cessation of local or systemic anti-inflammatory treatment.

Healthcare costs among patients with macular oedema associated with non-infectious uveitis: a US commercial payer's perspective

Objective

To describe patient characteristics and healthcare costs associated with uveitic macular oedema (UME) in US clinical practices from a commercial payer's perspective.

Methods and analysis

The IBM MarketScan Commercial Subset (1 October 2015-31 March 2020) was used to identify patients with non-infectious uveitis (NIU), with or without UME. Patients with UME at any time were further classified into subgroups of patients who received a UME diagnosis during the study period and those who received a UME diagnosis and local steroid injection (LSI) during the study period. Demographic and clinical characteristics, NIU-related treatments and healthcare costs were described for each cohort and subgroup during the most recent 12 months of continuous health plan enrolment. Healthcare costs were also described by vision status among all patients with NIU.

Results

A total of 36 322 patients with NIU were identified, of whom 3 301 (9.1%) had UME and 33 021 (90.9%) had no UME. Patients with UME more frequently received NIU-related treatment compared with those without UME (64.6% vs 45.0%), particularly LSI treatment (12.5% vs 0.7%). Mean total all-cause healthcare costs per-patient-per-year (PPPY) were higher among patients with UME ($19 851) than patients without UME ($16 188) and were especially high among those with bilateral UME ($24 162). Further, vision loss was more commonly observed in those with UME versus those without UME (5.7% vs 2.2%) and a trend of increasing healthcare costs with increasing vision loss was observed.

Conclusion

NIU is associated with substantial clinical and economic burden, particularly when UME is present.

Uveitis associated with cancer immunotherapy: long-term outcomes

Background: We report the long-term outcome of uveitis associated with cancer immunotherapy (CIT). Methods: This retrospective review included serial patients with CIT-associated uveitis treated using various regimen. Results: Eight patients treated with rituximab (anti-CD20), nivolumab (anti-PD-1), ipilimumab (anti-CTLA-4), vemurafenib and dabrafenib (anti-BRAF), trametinib (anti-MEK) and ibritunib showed uveitis with hypopion (one patient), macular edema (five patients) and choroiditis (two patients). Various regimens of corticosteroid therapy showed a favorable ophthalmological outcome, whether the CIT was continuing or suspended. Conclusion: Local corticosteroid injections in combination with CIT could be suggested as a first-line treatment. This could help to preserve the quality of life without threatening the vital prognosis.

Modern insights into ophthalmic manifestations of rheumatic diseases

This literature review is devoted to the analysis of modern insights into ophthalmological manifestations (according to the data of foreign scientific literature in the PubMed system for 20172020) of the most common rheumatic diseases (rheumatoid arthritis, ankylosing spondylitis, systemic lupus erythematosus, systemic scleroderma, systemic vasculitis), which are characterized by damage to all structures of the eye and its adnexa: eyelids, orbital tissues, eyeball tunics, vessels, optic nerve and vitreous. Ocular lesion may be an onset, one of the diagnostic signs, or a biomarker of underlying medical condition.

Structural Endpoints and Outcome Measures in Uveitis

Most uveitis entities are rare diseases but, taken together, are responsible for 5-10% of worldwide visual impairment which largely affects persons of working age. As with many rare diseases, there is a lack of high-level evidence regarding its clinical management, partly due to a dearth of reliable and objective quantitative endpoints for clinical trials. This review provides an overview of available structural outcome measures for uveitis disease activity and damage in an anatomical order from the anterior to the posterior segment of the eye. While there is a multitude of available structural outcome measures, not all might qualify as endpoints for clinical uveitis trials, and thorough testing of applicability is warranted. Furthermore, a consensus on endpoint definition, standardization, and "core outcomes" is required. As stipulated by regulatory agencies, endpoints should be precisely defined, clinically important, internally consistent, reliable, responsive to treatment, and relevant for the respective subtype of uveitis. Out of all modalities used for assessment of the reviewed structural outcome measures, optical coherence tomography, color fundus photography, fundus autofluorescence, and fluorescein/indocyanine green angiography represent current "core modalities" for reliable and objective quantification of uveitis outcome measures, based on their practical availability and the evidence provided so far.

Uveitic macular edema response to intravitreal dexamethasone implant is independent of optical coherence tomography findings

PURPOSE

To identify predictive response optical coherence tomography (OCT) findings in uveitic macular edema (UME) treated with intravitreal dexamethasone implant (DEX).

METHODS

Retrospective study of 66 eyes (53 patients) treated with DEX for UME. SD-OCT macular scans were collected prior to DEX treatment and 6 weeks and 3 months after the DEX implant. OCT images were evaluated for qualitative and quantitative characteristics (central retinal thickness, CRT and macular volume, MV). A multivariate analysis of covariance (ANCOVA) was carried out to study the predictive influence of OCT and clinical covariates on outcomes. The main outcome was a composite endpoint based on the simultaneous gain of 5 or more letters associated with a 20% or more reduction in CRT.

RESULTS

A significant improvement in BCVA at 6 weeks (mean change from baseline -0.2, SD 0.3) and 3 months (mean -0.2, SD 0.4) was observed after the DEX implant. A significant decrease in CRT (change from baseline -187.7 μm at 3 months) and MV (change from baseline -1.7 mm³ at 3 months) were also observed. An association of ≥ 5-letter improvement in BCVA and a ≥ 20% CRT reduction was observed in 44.6% of cases at 6 weeks and 31.4% at 3 months. ANCOVA multivariate analyses found CRT at 3 months independent from baseline clinical variables but from CRT.

CONCLUSION

DEX implant is an effective treatment for UME independently of basal characteristics, producing both a gain of visual acuity and improvement of macular anatomy by OCT measures at 3 months.

Intravitreal Dexamethasone Implant as a Sustained Release Drug Delivery Device for the Treatment of Ocular Diseases: A Comprehensive Review of the Literature

Drug delivery into the vitreous chamber remains a great challenge in the pharmaceutical industry due to the complex anatomy and physiology of the eye. Intravitreal injection is the mainstream route of drug administration to the posterior segment of the eye. The purpose of this review is to assess the current literature about the widening use of the intravitreal 0.7 mg dexamethasone (Dex) implant, and to provide a comprehensive collection of all the ocular disorders that benefit from Dex administration. Although anti-vascular endothelial growth-factors (VEGFs) have been largely indicated as a first-choice level, the Dex implant represents an important treatment option, especially in selected cases, such as vitrectomized eyes or patients in whom anti-VEGF failed or are contraindicated. In this article, the safety profile as well as the list of the possible complications related to intravitreal Dex injection are also discussed.

Subconjunctival injections of triamcinolone acetonide to treat uveitic macular edema

AIM

To evaluate the efficacy and safety of subconjunctival triamcinolone acetonide (TA) injections for treating uveitic macular edema (UME).

METHODS

This retrospective case series study included patients with UME who received subconjunctival TA injections with a minimum follow-up period of 6mo. The main outcome measure was central macular thickness (CMT). The secondary outcome measures included best-corrected visual acuity (BCVA), recurrence rate and intraocular pressure (IOP).

RESULTS

In total, 65 patients (80 eyes), mainly including idiopathic uveitis in 33 patients (50.77%) and Vogt-Koyanagi-Harada (VKH) syndrome in 19 patients (29.23%), were enrolled in this study. The mean CMT decreased from 457.6±173.0 µm at baseline to 325.9±176.8, 302.7±148.2, 332.2±177.3 and 270.6±121.6 µm at 1-, 2-, 3- and 6-months postinjection, respectively (all P<0.001). BCVA increased from logMAR 0.5±0.3 at baseline to logMAR 0.4±0.3, 0.4±0.3, 0.4±0.4 and 0.4±0.3 at the 1-, 2-, 3- and 6-months postinjection visits, respectively (all P<0.001). Twenty-one (21/80, 26.25%) eyes underwent relapse of UME within 6mo. A total of 20/80 (25%) eyes exhibited elevated IOPs, of which 13 eyes were controlled with topical IOP-lowering agents and 7 eyes underwent surgical removal of subconjunctival TA deposit.

CONCLUSION

Subconjunctival TA injections appear to be safe and effective for UME.

Economic Hardship, Ocular Complications, and Poor Self-reported Visual Function are Predictors of Mental Problems in Patients with Uveitis

PURPOSE

To characterize the quality of life and mental health status of patients with uveitis and investigate predictors of psychological problems.

METHODS

A total of 245 patients and 105 controls were enrolled in this cross-sectional study. Quality of life, psychological status, socio-demographic and clinical data were obtained from questionnaires and medical records. Multivariate regression analyses and Receiver Operating Characteristic (ROC) were applied to obtain the model predicting psychological problems of patients.

RESULTS

Of 245 patients, 16.7% and 26.5% (P < .0001) screened positive for anxiety and depression, respectively. The model predicting anxiety was comprised of low annual household income and poor self-reported visual function (P = .029, P < .0001, respectively), with an AUC of ROC of 0.744. The model predicting depression was comprised of poor self-reported visual function and ocular complications (P < .0001, P = .012, respectively), with an AUC of 0.78.

CONCLUSIONS

Economic hardship, ocular complications, and poor self-reported visual function are predictors of mental problems in patients with uveitis.

Macular edema associated with non-infectious uveitis: pathophysiology, etiology, prevalence, impact and management challenges

Macular edema (ME) is the most common sight-threatening complication in uveitis. The diagnostic and therapeutic management of the uveitic macular edema (UME) might be challenging due to the complex diagnostic workup and the difficulties physicians face to find the underlying cause, and due to its usually recurrent nature and the fact that it can be refractory to conventional treatment. Some of the mild cases can be treated with topical steroids, which can be combined with non-steroid anti-inflammatory drugs. However, immunomodulators such as methotrexate, tacrolimus, azathioprine, cyclosporine and mycophenolate mofetil together with anti-tumor necrosis factor-α (anti-TNF alpha) monoclonal antibodies such as adalimumab and infliximab, may be required to control the inflammation and the associated ME in refractory cases, or when an underlying disease is present. This review of the literature will focus mostly on the non-infectious UME.