Long-term results of therapy with mycophenolate mofetil in chronic non-infectious uveitis

Birdshot Chorioretinopathy: A Review

Birdshot chorioretinopathy (BSCR) is a bilateral chronic inflammation of the eye with no extraocular manifestations. BSCR affects middle-aged individuals from European descent and is strongly associated with the human leucocyte antigen (HLA)-A29 allele. The immune mechanisms involved are not fully understood, but recent advances have shown the role of Endoplasmic Reticulum Aminopeptidase 2 (ERAP2) in disease pathogenesis. Multimodal imaging, including fluorescein angiography, indocyanine angiography, fundus autofluorescence, and optical coherence tomography, are useful in confirming the diagnosis and monitoring disease activity. Visual field testing is also important to assess the disease progression. To date, there is no consensus for optimal treatment regimen and duration. Local and systemic corticosteroids can be used for short periods, but immunosuppressive or biological therapies are usually needed for the long-term management of the disease. Here, we will review publications focused on birdshot chorioretinopathy to give an update on the pathophysiology, the multimodal imaging, and the treatment of the disease.

[The Treatment Exit Options for Uveitis (TOFU) Registry: Involving Patients in the Generation of Evidence]

Uveitis comprises a group of rare diseases characterised by intraocular inflammation which may cause vision impairment and blindness and mostly affects people of working age. Non-infectious uveitis involving the posterior pole or the entire eye is often treated with different immunomodulating or disease-modifying anti-rheumatic drugs (DMARDs). However, the evidence on long-term management strategies and reduction/termination of treatment is limited. To help develop treatment exit strategies for patients with quiescent uveitis on long-term DMARD treatment, the Treatment Exit Options for Non-infectious Uveitis registry was initiated by the German ophthalmological society. A key aspect of the registry is active participation of patients (patient-reported outcomes, PROs). In a pilot study involving members of patient organizations, a combination of questionnaires covering vision- and general health-related quality of life, adherence to treatment, productivity and effects of treatment were evaluated. As the pilot study showed coverage of relevant patient-related aspects of the disease and its effect on daily life, the evaluated questionnaires were implemented in the registry's patient module. The registry including the patient module uses the electronic data capture (EDC) software REDCap (Version 9, Vanderbilt University, USA). By involving patients in both conceptualization and ongoing data collection, the TOFU registry emphasizes the patients' perspectives, and the inclusion of patient-relevant evidence for such as the development of guidelines and treatment recommendations is ensured.

Bilateral juxtapapillary choroidal neovascularization secondary to Birdshot chorioretinopathy-case report

Central vision loss, photopsia, floaters, and macular edema in a highly myopic patient can easily be misinterpreted as high myopia complications. In atypical cases, detailed examination and a thorough diagnostic workup are required to establish the proper diagnosis, which is often beyond the scope of diagnoses initially considered.

Clinical Presentation, Management, and Long-Term Outcome of Pars Planitis, Panuveitis, and Vogt-Koyanagi-Harada Disease in Children and Adolescents

OBJECTIVE

Chronic uveitis is a common manifestation of pediatric rheumatologic conditions and may result in irreversible blindness and long-term disability. While chronic anterior uveitis is the most commonly encountered ocular manifestation of rheumatic disease, little is known about the clinical presentation, management, and long-term outcome of more complex eye conditions such as pars planitis (PP), panuveitis (PU), and Vogt-Koyanagi-Harada disease (VKH). The present study was undertaken to comprehensively assess the long-term safety and efficacy of disease-modifying antirheumatic drugs (DMARDs) and biologics for the treatment of pediatric and adolescent patients with PP, PU, and VKH.

METHODS

We retrospectively reviewed a cohort of 75 children and adolescents with idiopathic PP (n = 50), PU (n = 12), and VKH (n = 14) followed by the Pediatric Rheumatology Core at Children's Hospital Los Angeles and evaluated referral patterns, clinical presentation, treatment response, and long-term clinical outcome.

RESULTS

Patients were followed for an average of 52 months. Their mean age at disease onset was 10 years. Bilateral eye involvement was seen in 87% of the patients. At first presentation to an ophthalmologist, glaucoma was noted in 21% of patients and vision loss (<20/40) in 87% of patients, while legal blindness (≤20/200 in the better-seeing eye) was diagnosed in 18 of 75 (24%) of patients (PP 22%, PU 36%, and VKH 21%). The average referral time to a pediatric rheumatologist was 13 months (range 1-96 months). Topical steroids were used in all patients, but 98% of patients required additional DMARDs, and 73% required therapy with biologics. After a mean of 52 months, 35% of patients across all disease groups had significant vision loss or were blind, and only 28% were in clinical remission without medications. The worst outcome was observed in children with PU. Regression analysis, young age at onset, delayed referral to a pediatric rheumatologist, and chronic disease were strong predictors for the risk of long-term blindness.

CONCLUSION

PP, PU, and VKH involve a high risk of permanent vision loss and should be managed by a skilled rheumatologist as early and as aggressively as possible.

Guidance on Noncorticosteroid Systemic Immunomodulatory Therapy in Noninfectious Uveitis: Fundamentals Of Care for UveitiS (FOCUS) Initiative

TOPIC

An international, expert-led consensus initiative to develop systematic, evidence-based recommendations for the treatment of noninfectious uveitis in the era of biologics.

CLINICAL RELEVANCE

The availability of biologic agents for the treatment of human eye disease has altered practice patterns for the management of noninfectious uveitis. Current guidelines are insufficient to assure optimal use of noncorticosteroid systemic immunomodulatory agents.

METHODS

An international expert steering committee comprising 9 uveitis specialists (including both ophthalmologists and rheumatologists) identified clinical questions and, together with 6 bibliographic fellows trained in uveitis, conducted a Preferred Reporting Items for Systematic Reviews and Meta-Analyses protocol systematic review of the literature (English language studies from January 1996 through June 2016; Medline [OVID], the Central Cochrane library, EMBASE, CINAHL, SCOPUS, BIOSIS, and Web of Science). Publications included randomized controlled trials, prospective and retrospective studies with sufficient follow-up, case series with 15 cases or more, peer-reviewed articles, and hand-searched conference abstracts from key conferences. The proposed statements were circulated among 130 international uveitis experts for review. A total of 44 globally representative group members met in late 2016 to refine these guidelines using a modified Delphi technique and assigned Oxford levels of evidence.

RESULTS

In total, 10 questions were addressed resulting in 21 evidence-based guidance statements covering the following topics: when to start noncorticosteroid immunomodulatory therapy, including both biologic and nonbiologic agents; what data to collect before treatment; when to modify or withdraw treatment; how to select agents based on individual efficacy and safety profiles; and evidence in specific uveitic conditions. Shared decision-making, communication among providers and safety monitoring also were addressed as part of the recommendations. Pharmacoeconomic considerations were not addressed.

CONCLUSIONS

Consensus guidelines were developed based on published literature, expert opinion, and practical experience to bridge the gap between clinical needs and medical evidence to support the treatment of patients with noninfectious uveitis with noncorticosteroid immunomodulatory agents.

Modern Therapeutic Approaches for Noninfectious Ocular Diseases Involving Inflammation

Dry eye disease, age-related macular degeneration, and uveitis are ocular diseases that significantly affect the quality of life of millions of people each year. In these diseases, the action of chemokines, proinflammatory cytokines, and immune cells drives a local inflammatory response that results in ocular tissue damage. Multiple therapeutic strategies are developed to either address the symptoms or abate the underlying cause of these diseases. Herein, the challenges to deliver drugs to the relevant location in the eye for each of these diseases are reviewed along with current and innovative therapeutic approaches that attempt to restore homeostasis within the ocular microenvironment.

Enteric-coated mycophenolate sodium in the treatment of non-infectious intermediate uveitis: results of a prospective, controlled, randomised, open-label, early terminated multicentre trial

BACKGROUND/AIMS

To evaluate the efficacy, safety and tolerability of enteric-coated mycophenolate sodium (EC-MPS) in combination with low-dose corticosteroids compared with a monotherapy with low-dose corticosteroids in subjects with non-infectious intermediate uveitis (IU).

METHODS

Open-label, prospective, controlled, randomised multicentre trial. Patients were randomised in a 1:1 ratio to either the treatment group (prednisolone plus EC-MPS) or control group (prednisolone monotherapy). Patients in the control group who relapsed within 6 months changed to the crossover group (prednisolone plus EC-MPS). Maximum treatment duration was 15 months. The primary endpoint was the time to first relapse in the treatment group and control group.

RESULTS

Forty-one patients at eight sites were analysed. Twenty-two patients were allocated to the treatment group, with 19 patients in the control group. A first relapse occurred in 9 patients (40.9%) in the treatment group and 15 patients (78.9%) in the control group (p=0.03). The median time to the first relapse was >15 months for the treatment group and 2.8 months for the control group (p=0.07). The probability of relapse-free survival at month 15 was estimated to be 52.9% in the treatment group and 19.7% in the control group (p=0.01). 15 patients changed to the crossover group. Of these, only four patients developed a second relapse. No safety concerns arose during the trial. Only one patient had to discontinue EC-MPS due to increased liver enzymes.

CONCLUSION

EC-MPS can be considered an effective and well-tolerated immunosuppressive drug to prevent relapses in patients with chronic IU.

TRIAL REGISTRATION NUMBER

EUDRACT number: 2009-009998-10, Results.

Quality-of-Life Outcomes From a Randomized Clinical Trial Comparing Antimetabolites for Intermediate, Posterior, and Panuveitis

PURPOSE

To evaluate the changes in quality of life in noninfectious uveitis patients treated with 2 of the most commonly prescribed antimetabolite treatments.

DESIGN

Secondary analysis of a multicenter, block-randomized clinical trial.

METHODS

Eighty patients at Aravind Eye Hospitals in Madurai and Coimbatore, India, with noninfectious intermediate, posterior, or panuveitis were randomized to receive oral methotrexate, 25 mg weekly, or oral mycophenolate mofetil, 1 g twice daily, and were followed up monthly for 6 months. Best-corrected visual acuity, Indian Vision Function Questionnaire (IND-VFQ), and Medical Outcomes Study 36-item Short Form Survey (SF-36) were obtained at enrollment and at 6 months (or prior, in the event of early treatment failure).

RESULTS

IND-VFQ scores, on average, increased by 9.2 points from trial enrollment to 6 months (95% confidence interval [CI]: 4.9, 13.5, P = .0001). Although the SF-36 physical component summary score did not significantly differ over the course of the trial, the mental component summary score decreased by 2.3 points (95% CI: -4.4, -0.1, P = .04) and the vitality subscale decreased by 3.5 points (95% CI: -5.6, -1.4, P = .001). Quality-of-life scores did not differ between treatment arms. Linear regression modeling showed a 3.2-point improvement in IND-VFQ score for every 5-letter improvement in visual acuity (95% CI: 1.9, 4.3; P < .001).

CONCLUSIONS

Although uveitis treatment was associated with increased vision and vision-related quality of life, patient-reported physical health did not change after 6 months of treatment, and mental health decreased. Despite improved visual outcomes, uveitis patients receiving systemic immunosuppressive therapy may experience a deterioration in mental health-related quality of life.

Mycophenolate mofetil combined with systemic corticosteroids prevents progression to chronic recurrent inflammation and development of 'sunset glow fundus' in initial-onset acute uveitis associated with Vogt-Koyanagi-Harada disease

PURPOSE

To evaluate the effectiveness and safety of mycophenolate mofetil (MMF) as first-line therapy combined with systemic corticosteroids in initial-onset acute uveitis associated with Vogt-Koyanagi-Harada (VKH) disease.

METHODS

This prospective study included 38 patients (76 eyes). The main outcome measures were final visual acuity, corticosteroid-sparing effect, progression to chronic recurrent granulomatous uveitis and development of complications, particularly 'sunset glow fundus'.

RESULTS

The mean follow-up period was 37.0 ± 29.3 (range 9-120 months). Visual acuity of 20/20 was achieved by 93.4% of the eyes. Corticosteroid-sparing effect was achieved in all patients. The mean interval between starting treatment and tapering to 10 mg or less daily was 3.8 ± 1.3 months (range 3-7 months). Twenty-two patients (57.9%) discontinued treatment without relapse of inflammation. The mean time observed off of treatment was 28.1 ± 19.6 months (range 1-60 months). None of the eyes progressed to chronic recurrent granulomatous uveitis. The ocular complications encountered were glaucoma in two eyes (2.6%) and cataract in five eyes (6.6%). None of the eyes developed 'sunset glow fundus', and none of the patients developed any systemic adverse events associated with the treatment.

CONCLUSIONS

Use of MMF as first-line therapy combined with systemic corticosteroids in patients with initial-onset acute VKH disease prevents progression to chronic recurrent granulomatous inflammation and development of 'sunset glow fundus'.

Non-Infectious Uveitis: Optimising the Therapeutic Response

Non-infectious uveitis mainly affects the working-age population and can contribute to significant social and economic burden. It comprises a heterogeneous group of conditions with varied aetiology. Precise and early diagnosis, excluding masquerade syndromes, is the key to early therapeutic intervention. Treatment should be appropriately selected according to the anatomical sites of inflammation, the diagnosis and known prognosis, and whether there is a systemic inflammatory drive. Corticosteroids in the form of local or systemic therapy form the mainstay of treatment; however, due to unacceptable side effects, the need for long-term use or suboptimal response, corticosteroid-sparing medications may need to be considered early on in the management of non-infectious uveitis. With newer insights into the immunopathology of uveitis and the availability of biologic agents, treatment can be tailored according to individual needs. Many patients have systemic involvement, and hence a multidisciplinary approach is often required to achieve the best outcome in an individual. Patient involvement in the management of non-infectious uveitis, ensuring compliance, and continual monitoring of both the treatment and therapeutic response are the key to achieving optimal outcomes.

Morphological assessment of the retina in uveitis

Background

The objective of this study is to describe a system for color photograph evaluation in uveitis and report baseline morphologic findings for the Multicenter Uveitis Steroid Treatment (MUST) Trial.

Four-hundred seventy-nine eyes of 255 subjects with intermediate, posterior, and panuveitis had stereoscopic color fundus photographs obtained by certified photographers and evaluated by certified graders using standardized procedures to evaluate morphologic characteristics of uveitis. The posterior pole was evaluated for macular edema, vitreoretinal interface abnormalities, and macular pigment disturbance/atrophy; the optic disk was assessed for edema, pallor, or glaucomatous changes. The presence of neovascularization, vascular occlusion, vascular sheathing, and tractional retinal changes was determined. A random subset of 77 images was re-graded to determine the percentage agreement with the original grading on a categorical scale.

Results

At baseline, 437/479 eyes had images available to grade. Fifty-three eyes were completely ungradable due to media opacity. Common features of intermediate and posterior/panuveitis were epiretinal membrane (134 eyes, 35 %), and chorioretinal lesions (140 eyes, 36 %). Macular edema was seen in 16 %. Optic nerve head and vascular abnormalities were rare. Reproducibility evaluation found exact agreement for the presence of chorioretinal lesions was 78 %, the presence and location of macular edema was 71 %, and the presence of epiretinal membrane was 71 %. Vertical cup-to-disk ratio measurement had intra-class correlation of 0.75.

Conclusions

The MUST system for evaluating stereoscopic color fundus photographs describes the morphology of uveitis and its sequelae, in a standardized manner, is highly reproducible, and allows monitoring of treatment effect and safety evaluation regarding these outcomes in clinical trials.

Electronic supplementary material

The online version of this article (doi:10.1186/s12348-016-0103-2) contains supplementary material, which is available to authorized users.

Sepsis During Immunosuppression for Sight-threatening Uveitis: The Flip side

PURPOSE

To highlight the rare but life-threatening infective consequences of immunosuppression or biologic treatment for sight-threatening uveitis.

PATIENTS AND METHODS

Retrospective case series of four immunosuppressed patients with uveitis complicated by sepsis.

RESULTS

The affected patients were all treated using prednisolone 10 mg/day or greater, together with oral immunosuppression (2 mycophenolate mofetil, 1 azathioprine + ciclosporin, 1 methotrexate) and, in one case, infliximab. All patients survived following intensive treatment.

CONCLUSION

Life-threatening infection is a rare but important risk in immunosuppressed patients with uveitis. Complete protection is not possible and prophylaxis regimens are of unproven efficacy. Patients should understand the risks before agreeing to a course of treatment.

Birdshot chorioretinopathy: current knowledge and new concepts in pathophysiology, diagnosis, monitoring and treatment

Birdshot chorioretinopathy (BCR) is a rare form of chronic, bilateral, posterior uveitis with a distinctive clinical phenotype, and a strong association with HLA-A29. It predominantly affects people in middle age. Given its rarity, patients often encounter delays in diagnosis leading to delays in adequate treatment, and thus risking significant visual loss. Recent advances have helped increase our understanding of the underlying autoimmune mechanisms involved in disease pathogenesis, and new diagnostic approaches such as multimodality imaging have improved our ability to both diagnose and monitor disease activity. Whilst traditional immunosuppressants may be effective in BCR, increased understanding of immune pathways is enabling development of newer treatment modalities, offering the potential for targeted modulation of immune mediators. In this review, we will discuss current understanding of BCR and explore recent developments in diagnosis, monitoring and treatment of this disease. Synonyms for BCR: Birdshot chorioretinopathy, Birdshot retinochoroiditis, Birdshot retino-choroidopathy, Vitiliginous choroiditis. Orphanet number: ORPHA179 OMIM: 605808.

Pharmacologic Treatment of Noninfectious Uveitis

Uveitis encompasses a spectrum of diseases whose common feature is intraocular inflammation, which may be infectious or noninfectious in etiology (Nussenblatt and Whitcup 2010). Infectious causes of uveitis are typically treated with appropriate antimicrobial therapy and will not be discussed in this chapter. Noninfectious uveitides are thought have an autoimmune component to their etiology and are thus treated with anti-inflammatory agents.

[Therapy of intermediate uveitis]

Intermediate uveitis is a form of intraocular inflammation in which the vitreous body is the major site of inflammation. Intermediate uveitis is primarily treated medicinally and systemic corticosteroids are the mainstay of therapy. When recurrence of uveitis or side effects occur during corticosteroid therapy an immunosuppressive treatment is required. Cyclosporine A is the only immunosuppressive agent that is approved for therapy of uveitis in Germany; however, other immunosuppressive drugs have also been shown to be effective and well-tolerated in patients with intermediate uveitis. In severe therapy-refractory cases when conventional immunosuppressive therapy has failed, biologics can be used. In patients with unilateral uveitis or when the systemic therapy is contraindicated because of side effects, an intravitreal steroid treatment can be carried out. In certain cases a vitrectomy may be used.

A comprehensive review and update on the non-biologic treatment of adult noninfectious uveitis: part I

INTRODUCTION

Treatment of adult, noninfectious uveitis remains a challenge for ophthalmologists around the world. The disease accounts for almost 10% of preventable blindness in the US and can be idiopathic or associated with infectious and systemic disorders. Strong evidence is still emerging to indicate that pharmacologic strategies presently used in rheumatologic or autoimmune disease may be translated to the treatment of intraocular inflammation. Corticosteroid monotherapy is widely regarded as wholly inappropriate, due to the unfavorable risk/benefit profile and poor long-term outcomes. Treatment plans have shifted away from low-dose, chronic corticosteroid therapy for maintenance, towards medium- to high-dose therapy for acute inflammation, followed immediately by initiation of immunomodulatory therapy. These therapies follow the 'stepladder approach', whereby least to more aggressive therapies are trialed to induce remission of inflammation, eventually without corticosteroids of any form (topical, local and systemic).

AREAS COVERED

This two-part review gives a comprehensive overview of the existing medical treatment options for patients with adult, noninfectious uveitis, as well as important advances for the treatment of ocular inflammation. Part I covers classic immunomodulation and latest information on corticosteroid therapy.

EXPERT OPINION

The hazard of chronic corticosteroid use for the treatment of adult, noninfectious uveitis is well-documented. Corticosteroid-sparing therapies, which offer a very favorable risk-benefit profile when administered properly, should be substituted.

Mycophenolic acid in the treatment of birdshot chorioretinopathy: long-term follow-up

AIM

To assess the long-term efficacy and tolerability of both derivatives of mycophenolic acid, mycophenolate mofetil (MMF) and mycophenolate sodium (MPS), in the therapy of patients with birdshot chorioretinopathy (BSCR).

METHODS

Retrospective analysis of 24 patients (48 eyes) with BSCR, treated with MMF or MPS with a follow-up of at least 1 year. The main outcome measures included control of inflammation, steroid-sparing potential and side effects. Secondary outcome measure was the development of retinal function during the therapy measured by best-corrected visual acuity (BCVA), visual field and/or electroretinography (ERG).

RESULTS

Twelve patients (50%) were treated with MMF and 12 patients (50%) with MPS. Control of intraocular inflammation, defined as complete lack of clinical and angiographic signs of inflammatory activity, was achieved in 16 of 24 patients (67%). The angiographic signs of activity were significantly reduced during the follow-up (p<0.05). No significant difference was found in the mean BCVA, the visual field and the ERG parameters during the treatment compared with the baseline (p>0.05). In 20 out of 21 patients (95%) who received systemic corticosteroids, the corticosteroids could be tapered to a daily dose of ≤10 mg (rate 0.26/patient-year). Drug-related side effects occurred in 12 patients (50%, rate 0.16/patient-year). In four patients (17%), a therapy switch from MMF to MPS was undertaken due to gastrointestinal discomfort.

CONCLUSIONS

Derivatives of mycophenolic acid are effective and safe drugs for the treatment of BSCR. In cases with gastrointestinal side effects, a therapy switch from MMF to MPS should be considered.

Pharmacokinetics, electrophysiological, and morphological effects of the intravitreal injection of mycophenolic acid in rabbits

PURPOSE

To determine the half-life of mycophenolic acid (MPA) in the vitreous of New Zealand albino rabbits after intravitreal injection and the retinal toxicity of different doses of MPA.

METHODS

Ten micrograms of MPA (Roche Bioscience, Palo Alto, CA) was injected in the vitreous of 16 rabbits, animals were sacrificed at different time-points, and vitreous samples underwent high-performance liquid chromatography. For functional and morphological studies, 5 doses of MPA (0.05, 0.5, 2, 10, and 100 μg) were injected in the vitreous of 20 rabbits. As control, contralateral eyes were injected with aqueous vehicle. Electroretinograms (ERGs) were recorded before injection and at days 7, 15, and 30. Animals were sacrificed on day 30 and retinas were analyzed under light microscopy.

RESULTS

MPA half-life in the vitreous was 5.0±0.3 days. ERG revealed photoreceptor functional impairment in eyes injected with 0.5 μg and higher on day 30, while eyes injected with 100 μg presented the same changes already from day 15. No morphological change was found.

CONCLUSIONS

MPA vitreous half-life is 5.0 days. Intravitreal injection of 0.5 μg MPA and higher causes dose- and time-related photoreceptor sensitivity decrease in rabbits. The MPA dose of 0.05 μg may be safe for intravitreal use in rabbits.

Mycophenolate mofetil and cyclophosphamide treatments suppress inflammation intensity in an experimental model of autoimmune uveitis

In human, autoimmune uveitis is a leading cause of visual disability and ranks with diabetic retinopathy as a major source of blind registrations in developed countries. Since most cases of non-infectious uveitis are considered to be autoimmune or at least immune-mediated, the management of such patients has rested on appropriate immunosuppression. Some patients, however, despite maximal immunotherapy, fail to respond or are seriously intolerant of the drug therapies. Since its establishment 20 years ago, the model of experimental autoimmune uveoretinitis has served as a useful template for novel therapeutic approaches. The aim of our study was to compare the efficacy of mycophenolate mofetil and cyclophosphamide and golimumab treatment in the mouse model of experimental autoimmune uveitis. The intensity of intraocular inflammation was evaluated histologically in the treatment and control groups. Experimental autoimmune uveitis has been induced in mouse strain C57BL/6 by subcutaneous application of interphotoreceptor retinoid binding protein in complete Freund's adjuvant and pertussis toxin. The treatment was commenced on the day of uveitis induction. Cyclophosphamide was applied intraperitoneally in a single dose (100 mg/kg), mycophenolate mofetil intraperitoneally daily (30 mg/kg or 50 mg/kg), golimumab subcutaneously weekly (70 mg/kg). Sham intraperitoneal injection of a placebo (aqua pro injectione) and untreated mice with experimental autoimmune uveitis served as controls. The results show statistically significant suppression of experimental uveitis both with mycophenolate mofetil and with cyclophosphamide, and thus support its use in human medicine.

Interventions for the treatment of uveitic macular edema: a systematic review and meta-analysis

Background

Uveitic macular edema is the major cause of reduced vision in eyes with uveitis.

Objectives

To assess the effectiveness of interventions in the treatment of uveitic macular edema.

Search strategy

Cochrane Central Register of Controlled Trials, Medline, and Embase. There were no language or data restrictions in the search for trials. The databases were last searched on December 1, 2011. Reference lists of included trials were searched. Archives of Ophthalmology, Ophthalmology, Retina, the British Journal of Ophthalmology, and the New England Journal of Medicine were searched for clinical trials and reviews.

Selection criteria

Participants of any age and sex with any type of uveitic macular edema were included. Early, chronic, refractory, or secondary uveitic macular edema were included. We included trials that compared any interventions of any dose and duration, including comparison with another treatment, sham treatment, or no treatment.

Data collection and analysis

Best-corrected visual acuity and central macular thickness were the primary outcome measures. Secondary outcome data including adverse effects were collected.

Conclusion

More results from randomized controlled trials with long follow-up periods are needed for interventions for uveitic macular edema to assist in determining the overall long-term benefit of different treatments. The only intervention with sufficiently robust randomized controlled trials for a meta-analysis was acetazolamide, which was shown to be ineffective in improving vision in eyes with uveitic macular edema, and is clinically now rarely used. Interventions showing promise in this disease include dexamethasone implants, immunomodulatory drugs and anti-vascular endothelial growth-factor agents. When macular edema has become refractory after multiple interventions, pars plana vitrectomy could be considered. The disease pathophysiology is uncertain and the course of disease unpredictable. As there are no clear guidelines from the literature, interventions should be tailored to the individual patient.

Mycophenolate mofetil in the therapy of uveitic macular edema--long-term results

PURPOSE

To assess the long-term efficacy of mycophenolate mofetil (MMF) in uveitic cystoid macular edema (CMO).

METHODS

Thirty-eight uveitis patients with CMO treated with MMF with a follow-up of at least 5 years were analyzed. The patients were divided into two groups: group A, 24 patients with CMO that had occurred before initiation of MMF; group B, 14 patients who developed CMO for the first time during MMF.

RESULTS

In group A, a complete remission of CMO without recurrences was observed in 12 of 24 patients (50%, rate: 0.12/patient-year). In group B, CMO occurred in 7 patients (50%) despite standard dosage of MMF, and in 7 patients (50%) during MMF dose reduction.

CONCLUSIONS

The results show that MMF is not always sufficiently effective as a long-term treatment for uveitic macular edema. Moreover, in some uveitis patients MMF cannot prevent new development of CMO.