Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 89
Filter
1.
Ocul Immunol Inflamm ; : 1-10, 2024 Feb 13.
Article in English | MEDLINE | ID: mdl-38349962

ABSTRACT

PURPOSE: Patients with sight-threatening inflammatory eye disease (IED) are maintained on systemic immunosuppression whilst in long-term clinical remission. There are no clear guidelines on the duration of remission before implementing treatment withdrawal. We present a real-world analysis on the use of immunosuppression in IED in long-term remission and consider strategies for withdrawal. METHODS: Adult IED patients on systemic immunosuppression were categorised into four disease groups: Corneal Transplant Survival Strategies (CTSS), Ocular Surface Disease (OSD), Non-infectious Uveitis (NIU) and Scleritis. Patients with Behçet's disease were excluded. Data on systemic immunosuppressants and biologics used; duration of treatment; reasons for drug discontinuation; disease activity/remission status; duration of clinical remission with an emphasis on patients who had been in remission for a minimum of 24 months were captured. RESULTS: Out of a total of 303 IED patients, 128 were on systemic immunosuppression with a clinical remission of their ocular disease for ≥24 months. The median duration of remission was 4-5 years with the longest duration of remission 22 years, and some patients on immunosuppression for up to 23 years. Sixty patients stopped at least one immunosuppressive agent without prior discussion with a health-care practitioner. CONCLUSION: Progressive conditions, such as cicatrising conjunctivitis may require lifelong immunosuppression, but patients with NIU and Scleritis and those on CTSS, immunosuppression withdrawal should be considered if they remain in remission for 2 years. Any patient stopping a medication should be contacted immediately for counselling. These data will better inform patients, encourage adherence and aide formal guideline development.

2.
PLoS One ; 18(11): e0294117, 2023.
Article in English | MEDLINE | ID: mdl-37976313

ABSTRACT

BACKGROUND: Uveitis comprises a range of conditions that result in intraocular inflammation. Most sight-threatening uveitis falls into the broad category known as Non-infectious Posterior Segment-Involving Uveitis (PSIU). To evaluate treatments, trialists and clinicians must select outcome measures. The aim of this study was to understand healthcare professionals' perspectives on what outcomes are important to adult patients with PSIU and their carers. METHODS: Twelve semi-structured telephone interviews were undertaken to understand the perspectives of healthcare professionals. Interviews were audio recorded, transcribed and thematically analysed. Findings were compared with the views of patients and carers and outcomes abstracted from a previously published systematic review. RESULTS: Eleven core domains were identified as important to healthcare professionals: (1) visual function, (2) symptoms, (3) functional ability, (4) impact on relationships, (5) financial impact, (6) psychological morbidity and emotional well-being (7) psychosocial adjustment to uveitis, (8) doctor / patient / interprofessional relationships and access to health care, (9) treatment burden, (10) treatment side effects, (11) disease control. Healthcare professionals recognised a similar range of domains to patients and carers but placed more emphasis on certain outcomes, particularly in the disease control domain. In contrast the range of outcomes identified via the systematic review was limited. CONCLUSION: Healthcare professionals recognise all of the published outcome domains as patients/carers in the previous publication but with subtly differing emphasis within some domains and with a priority for certain types of measures. Healthcare professionals discussed the disease control and side effects/complications to a greater degree than patients and carers in the focus groups.


Subject(s)
Health Personnel , Uveitis , Adult , Humans , Qualitative Research , Focus Groups , Health Personnel/psychology , Caregivers , Physician-Patient Relations , Uveitis/therapy
3.
Clin Exp Rheumatol ; 41(10): 2048-2055, 2023 Oct.
Article in English | MEDLINE | ID: mdl-37902271

ABSTRACT

OBJECTIVES: To define the clinical characteristics of oral ulceration (OU) in Behçet's disease (BD), to allow differentiation from other causes of OU, including aphthous ulcers, by an International Delphi consultation. To develop a clinical guideline on how to recognise BD ulcers. METHODS: Round 1. 40 clinical images of OU in BD, recurrent aphthous stomatitis (RAS), inflammatory bowel disease (IBD) and mucous membrane pemphigoid (MMP) were shown. Participants answered, independently, which images would be consistent with a BD ulcer. Round 2. The results from marking independently were shown. The panel remarked the questions through iteration process. The images not agreed to be a possible BD ulcer were discarded. Round 3. 10 clinical descriptors that may define BD ulcers were suggested. Participants ranked the level of importance for each descriptor on each image presented. Round 4. Participants re-ranked their level of agreement for each descriptor through iteration process. Whether the clinical pictures would be different from RAS was also explored. A final agreement was reached. RESULTS: This study has shown clear differentiation between BD, IBD and MMP ulcers when defining them by phenotype through clinical images only. On the other hand, no differentiation between RAS and BD ulcers was found. The most important clinical descriptors that define BD ulcers have been agreed. CONCLUSIONS: New clinical guidance for Health Care Professionals (HCP) on how to recognise a BD ulcer has been proposed. This should elucidate an earlier diagnosis, quicker access to treatment and control of the disease enhancing patient's quality of life.


Subject(s)
Behcet Syndrome , Inflammatory Bowel Diseases , Oral Ulcer , Humans , Oral Ulcer/diagnosis , Oral Ulcer/etiology , Oral Ulcer/drug therapy , Behcet Syndrome/drug therapy , Ulcer/diagnosis , Ulcer/etiology , Quality of Life , Inflammatory Bowel Diseases/complications
4.
Ocul Immunol Inflamm ; : 1-7, 2023 May 03.
Article in English | MEDLINE | ID: mdl-37134304

ABSTRACT

PURPOSE: To assess the efficacy of treatment on acute posterior multifocal placoid pigment epitheliopathy (APMPPE) and relentless placoid chorioretinopathy (RPC). METHODS: Cases were identified from three UK uveitis centers. Retrospective analysis of visual acuity recovery; OCT structural outcomes; and retinal lesion quantification in observed and treated cases of APMPPE/RPC. RESULTS: There were nine APMPPE and three RPC cases. Out of 12 patients, six were female. Median age: 26.5 years (range, 20-57 years). Four cases (six eyes) were observed, and eight cases (15 eyes) received corticosteroids ± immunosuppression. 4/4 observed and 6/10 treated foveal involving eyes regained 0.00 LogMAR vision. Observed lesions achieved more favorable anatomical outcomes. New lesions post-presentation developed in 1/6 (16%) observed eye versus 10/15 (66%) treated eyes. In three cases, a delayed, rebound lesion occurrence was observed post-high-dose corticosteroids. CONCLUSIONS: While subject to potential treatment bias, in this small case series, natural history alone appears non-inferior to corticosteroid treatment.

5.
Am J Ophthalmol ; 242: 243-251, 2022 10.
Article in English | MEDLINE | ID: mdl-35660421

ABSTRACT

PURPOSE: To evaluate the utility of nanopore sequencing for identifying potential causative pathogens in endophthalmitis, comparing culture results against full-length 16S rRNA nanopore sequencing (16S Nanopore), whole genome nanopore sequencing (Nanopore WGS), and Illumina (Illumina WGS). DESIGN: Cross-sectional diagnostic comparison. METHODS: Patients with clinically suspected endophthalmitis underwent intraocular vitreous biopsy as per standard care. Clinical samples were cultured by conventional methods, together with full-length 16S rRNA and WGS using nanopore and Illumina sequencing platforms. RESULTS: Of 23 patients (median age 68.5 years [range 47-88]; 14 males [61%]), 18 cases were culture-positive. Nanopore sequencing identified the same cultured organism in all of the culture-positive cases and identified potential pathogens in two culture-negative cases (40%). Nanopore WGS was able to additionally detect the presence of bacteriophages in three samples. The agreements at genus level between culture and 16S Nanopore, Nanopore WGS, and Illumina WGS were 75%, 100%, and 78%, respectively. CONCLUSIONS: Whole genome sequencing has higher sensitivity and provides a viable alternative to culture and 16S sequencing for detecting potential pathogens in endophthalmitis. Moreover, WGS has the ability to detect other potential pathogens in culture-negative cases. Whilst Nanopore and Illumina WGS provide comparable data, nanopore sequencing provides potential for cost-effective point-of-care diagnostics.


Subject(s)
Endophthalmitis , Nanopores , Aged , Aged, 80 and over , Cross-Sectional Studies , Endophthalmitis/diagnosis , Humans , Male , Metagenomics/methods , Middle Aged , RNA, Ribosomal, 16S/genetics
6.
Front Cell Infect Microbiol ; 12: 780354, 2022.
Article in English | MEDLINE | ID: mdl-35493740

ABSTRACT

Mucous Membrane Pemphigoid is an orphan multi-system autoimmune scarring disease involving mucosal sites, including the ocular surface (OcMMP) and gut. Loss of tolerance to epithelial basement membrane proteins and generation of autoreactive T cell and/or autoantibodies are central to the disease process. The gut microbiome plays a critical role in the development of the immune system. Alteration in the gut microbiome (gut dysbiosis) affects the generation of autoreactive T cells and B cell autoantibody repertoire in several autoimmune conditions. This study examines the relationship between gut microbiome diversity and ocular inflammation in patients with OcMMP by comparing OcMMP gut microbiome profiles with healthy controls. DNA was extracted from faecal samples (49 OcMMP patients, 40 healthy controls), amplified for the V4 region of the 16S rRNA gene and sequenced using Illumina Miseq platform. Sequencing reads were processed using the bioinformatics pipeline available in the mothur v.1.44.1 software. After adjusting for participant factors in the multivariable model (age, gender, BMI, diet, proton pump inhibitor use), OcMMP cohort was found to be associated with lower number of operational taxonomic units (OTUs) and Shannon Diversity Index when compared to healthy controls. Within the OcMMP cohort, the number of OTUs were found to be significantly correlated with both the bulbar conjunctival inflammation score (p=0.03) and the current use of systemic immunotherapy (p=0.02). The linear discriminant analysis effect size scores indicated that Streptococcus and Lachnoclostridium were enriched in OcMMP patients whilst Oxalobacter, Clostridia uncultured genus-level group (UCG) 014, Christensenellaceae R-7 group and butyrate-producing bacteria such as Ruminococcus, Lachnospiraceae, Coprococcus, Roseburia, Oscillospiraceae UCG 003, 005, NK4A214 group were enriched in healthy controls (Log10 LDA score < 2, FDR-adjusted p <0.05). In conclusion, OcMMP patients have gut dysbiosis correlating with bulbar conjunctival inflammation and the use of systemic immunotherapies. This provides a framework for future longitudinal deep phenotyping studies on the role of the gut microbiome in the pathogenesis of OcMMP.


Subject(s)
Dysbiosis , Pemphigoid, Bullous , Clostridiales/genetics , Dysbiosis/microbiology , Humans , Inflammation , Mucous Membrane , RNA, Ribosomal, 16S/genetics
7.
J Inflamm (Lond) ; 19(1): 5, 2022 Mar 31.
Article in English | MEDLINE | ID: mdl-35361212

ABSTRACT

BACKGROUND: Behçet's disease (BD) is a multisystem autoinflammatory disease characterised by mucosal ulceration, ocular, neural, joint and skin inflammation. The cause of BD is not known but there is a strong genetic association with HLA-B*51, IL10 and IL23R. Neutrophils are a first line of defence against invading pathogens and have been described as activated in patients with BD. Neutrophils can now be separated into different subsets, such as low density (LDN) and normal density (NDN) that have diverse functional roles. We wished to address neutrophil heterogeneity in patients with BD. METHODS: Peripheral blood neutrophils were obtained from 32 BD patients and 37 healthy aged-matched controls. Percoll isolation was used to isolate all neutrophils, while Ficol-Hypaque was used to obtain LDN and NDN. Phagocytic capacity and production of reactive oxygen species (ROS), and neutrophil extracellular traps (NET) stimulated with phorbol 12-myristate 13-acetate (PMA) and Escherichia coli (E.coli) were assessed in both groups. RESULTS: We have demonstrated reduced phagocytic capacity and ROS production but greater NET production by total neutrophils stimulated with PMA or E.coli from BD patients in comparison with healthy controls. Patients with BD had elevated numbers of LDN and lower number of NDN compared with healthy controls. However, both neutrophil subsets showed the same reduced ROS production and phagocytic function as total neutrophils in both groups. CONCLUSION: Our novel findings indicate that the neutrophil population in BD is heterogeneous and the increased number of LDN in combination with greater NET production may contribute to the inflammatory response and pathogenesis.

9.
Ocul Immunol Inflamm ; 30(1): 73-80, 2022 Jan 02.
Article in English | MEDLINE | ID: mdl-32946293

ABSTRACT

PURPOSE: To create a health utility value for birdshot chorioretinopathy (BCR) using Time Trade-Off (TTO) and Standard Gamble (SG) utilities. METHOD: Adult BCR patients completed TTO, SG, EQ-5D-5L, and NEI VFQ-25 questionnaires and underwent a detailed history and clinical examination. RESULTS: A total of 28 BCR patients (9 M, 19 F; mean age 62 years, range 47-83) were included. There were 22 patients with a logMAR vision of 0.3 or better in both eyes. Mean TTO was 0.90 ± SD 0.18 (range 0.33-1.0) and mean SG was 0.94 ± SD 0.14 (range 0.5-1.0). TTO correlated with EQ-5D-5L index value (p = .024) and NEI VFQ-25 composite score (p = .015). CONCLUSIONS: Of 28 patients with BCR, 11 would trade remaining life (mean 5.4 years), and 6 would take a risk of immediate death (mean 28% risk), in return for perfect vision in both eyes for the rest of their life.


Subject(s)
Health Status , Quality of Life , Adult , Aged , Aged, 80 and over , Birdshot Chorioretinopathy , Humans , Middle Aged , Surveys and Questionnaires
10.
Lupus ; 30(14): 2191-2203, 2021 Dec.
Article in English | MEDLINE | ID: mdl-34928721

ABSTRACT

OBJECTIVE: Ophthalmic complications in Systemic Lupus Erythematosus (SLE) are broad and can occur in up to a third of patients. The British Isles Lupus Assessment Group (BILAG) 2004 Index identifies 13 ocular manifestations of active SLE, as opposed to those related to previous disease activity and/or the consequences of therapy. We conducted a systematic review of published literature to determine the frequency of ophthalmic manifestations of active SLE. METHODS: A systematic literature search of Ovid MEDLINE and EMBASE from their respective inceptions to July 2020 was conducted to identify cohort, case-control and cross-sectional studies. RESULTS: 22 studies meeting eligibility criteria were included. Most studies featured small sample sizes and were judged to have a high risk of methodological bias. The number and quality of studies did not allow us to confidently estimate the incidence of the conditions. No studies reported epidemiological data for orbital inflammation/myositis/proptosis. The prevalence of each of the other ocular manifestations, with the exception of retinal vaso-occlusive disease, was consistently less than 5%. Retinal vasculitis, uveitis and isolated cotton wool spots tended to be associated with more active SLE disease. CONCLUSION: The prevalence of eye disease due to SLE activity is uncommon, but clinicians should be aware that some conditions tend to be associated with more active systemic disease. Further studies to determine the incidence and risk factors for these ophthalmic manifestations are needed.


Subject(s)
Eye Diseases , Lupus Erythematosus, Systemic , Vascular Diseases , Cross-Sectional Studies , Eye Diseases/epidemiology , Eye Diseases/etiology , Humans , Lupus Erythematosus, Systemic/complications , Lupus Erythematosus, Systemic/epidemiology , Vision, Ocular
11.
BMJ Open Ophthalmol ; 6(1): e000854, 2021.
Article in English | MEDLINE | ID: mdl-34693022

ABSTRACT

OBJECTIVE: This study aimed to explore the British public's healthcare-seeking beliefs concerning eye symptoms, and assess how the first COVID-19 lockdown influenced these. METHODS AND ANALYSIS: An anonymous web-based survey was disseminated through mailing lists and social media between June and August 2020. The survey sought participants' views on the severity and urgency of the need for medical review for four ophthalmic and two general medical scenarios on a five-point scale. Participants were asked to answer questions twice: once ignoring the COVID-19 pandemic, and once taking this into account, with additional questions asked to identify factors influencing the decision to seek medical attention and ward admission. RESULTS: A total of 402 participants completed the survey (mean age 61.6 years, 63.1% female and 87.7% of white ethnicity). Scores for symptom severity and urgency of medical review increased significantly with the severity of the clinical scenario (both p<0.001). However, participants gave significantly lower scores for the urgency of medical attention when accounting for the COVID-19 pandemic (compared with no pandemic) for all scenarios (all p<0.001). Younger age, greater deprivation and non-white ethnicity were correlated with a lower perception of seriousness and urgency of medical attention. CONCLUSIONS: During the first UK lockdown of the COVID-19 pandemic, reduced urgency of medical review for ocular and systemic pathologies was reported in response to the pandemic, which represents a barrier to healthcare-seeking behaviour. This has the potential to critically delay medical review and timely management, negatively impacting patient outcomes.

12.
PLoS One ; 16(8): e0256240, 2021.
Article in English | MEDLINE | ID: mdl-34407118

ABSTRACT

BACKGROUND: Microbial keratitis (MK) is the most common non-surgical ophthalmic emergency, and can rapidly progress, causing irreversible sight-loss. This study explored whether the COVID-19 (C19) national lockdown impacted upon the clinical presentation and outcomes of MK at a UK tertiary-care centre. METHODS: Medical records were retrospectively reviewed for all patients with presumed MK requiring corneal scrapes, presenting between 23rd March and 30th June in 2020 (Y2020), and the equivalent time windows in 2017, 2018 and 2019 (pre-C19). RESULTS: In total, 181 and 49 patients presented during the pre-C19 and Y2020 periods, respectively. In Y2020, concurrent ocular trauma (16.3% vs. 5.5%, p = 0.030) and immunosuppression use (12.2% vs 1.7%, p = 0.004) were more prevalent. Despite proportionately fewer ward admissions during the pandemic (8.2% vs 32.6%, p<0.001), no differences were observed in baseline demographics; presenting visual acuity (VA; median 0.6 vs 0.6 LogMAR, p = 0.785); ulcer area (4.0 vs 3.0mm2, p = 0.520); or final VA (0.30 vs 0.30 LogMAR, p = 0.990). Whilst the overall rates of culture positivity were similar in Y2020 and pre-C19 (49.0% vs. 54.7%, p = 0.520), there were differences in the cultures isolated, with a lower rate of poly-microbial cultures in Y2020 (8.3% vs. 31.3%, p = 0.022). CONCLUSIONS: Patient characteristics, MK severity and final visual outcomes did not appear to be affected in the first UK lockdown, despite fewer patients being admitted for care. Concurrent trauma and systemic immunosuppression use were greater than in previous years. The difference in spectra of isolated organisms may relate to behavioural changes, such as increased hand hygiene.


Subject(s)
COVID-19/epidemiology , Keratectomy/methods , Keratitis/epidemiology , Keratitis/surgery , Adult , Aged , Female , Humans , Immunosuppressive Agents/therapeutic use , Keratitis/microbiology , Male , Middle Aged , Pandemics , Patient Admission/statistics & numerical data , Retrospective Studies , Severity of Illness Index , Tertiary Care Centers , United Kingdom/epidemiology
13.
BMJ Open Ophthalmol ; 6(1): e000649, 2021.
Article in English | MEDLINE | ID: mdl-34307892

ABSTRACT

OBJECTIVE: To evaluate whether topical therapy is linked to scores related to anxiety, depression and quality of life (QoL) in inflammatory eye disease (IED). METHODS AND ANALYSIS: Patients with ocular surface disease (OSD, N=100) and Uveitis (N=100) completed self-administered validated questions on ocular symptoms and well-being, with supplemental questions on eye drop frequency. RESULTS: Forty (20%) patients had scores consistent with depression and 33 (17%) anxiety. Anxiety, depression, QoL and OSD index (OSDI) scores did not differ significantly between OSD and Uveitis groups. In those with anxiety or depression, QoL was significantly reduced in all WHO Quality Of Life-BREF domains (all p<0.001). Multivariable analysis considering demographic and disease-related factors found daily topical drop frequency to be independently associated with anxiety (p=0.009) but not depression (p=0.300). CONCLUSION: A high proportion of patients with IED demonstrated scores indicative of anxiety and depression. Preliminary evidence suggests that the frequency of topical eye drops potentially plays a significant role in the psychological health status of patients with IED.

14.
Gen Hosp Psychiatry ; 70: 103-108, 2021.
Article in English | MEDLINE | ID: mdl-33799105

ABSTRACT

OBJECTIVES: To measure health utilities Time Trade-Off (TTO) and Standard Gamble (SG) in Behcet's disease (BD), and explore the interrelationships with EQ-5D-5L, disease activity, depression, anxiety and fatigue. METHODS: TTO, SG, EQ-5D-5L, EQ VAS, depression (PHQ-9), anxiety (GAD-7) and fatigue (MAF) questionnaires were administered to 103 adult BD patients. Disease activity was assessed using the Behçet's Disease Activity Index (BDAI). RESULTS: Mean TTO was 0.72 ± SD 0.27, mean SG 0.70 ± SD 0.34, and mean EQ-5D-5L 0.519 ± SD 0.315. Moderate to severe depression was identified in 55.2%, moderate to severe anxiety in 35.1% and moderate to high fatigue in 97.7% patients. TTO correlated with SG (p < 0.01), EQ-5D-5L (p < 0.01) and negatively correlated with depression (p < 0.01), anxiety (p < 0.01) and fatigue (p < 0.01). Multiple linear regression showed SG was the only predictor of TTO (p = 0.002). Cluster analysis revealed one cluster where psychological factors rather than disease activity may have influenced TTO and SG scores. CONCLUSION: TTO and SG show that BD patients would on average forgo 28% of their remaining life or run a 30% risk of death to avoid the condition. Complex interrelationships with depression, anxiety and fatigue appear to play an important role in their decision making.


Subject(s)
Behcet Syndrome , Adult , Anxiety/epidemiology , Behcet Syndrome/complications , Fatigue/epidemiology , Fatigue/etiology , Health Status , Humans , Quality of Life , Surveys and Questionnaires
15.
Eye (Lond) ; 35(12): 3342-3349, 2021 12.
Article in English | MEDLINE | ID: mdl-33531696

ABSTRACT

OBJECTIVES: To ascertain adherence to an international consensus target of ≤7.5 mg/day of prednisolone for maintenance systemic corticosteroid (CS) prescribing in uveitis and report the frequency of courses of high-dose systemic CS in the UK. METHODS: We conducted a national, multicentre audit of systemic CS prescribing for uveitis at 11 UK sites between November 2018 and March 2019. High-dose CS was defined as (1) maintenance >7.5 mg prednisolone for >3 consecutive months, or (2) >1 course ≥40 mg oral CS or ≥500 mg intravenous (IV) methylprednisolone in the past 12 months. Case notes of patients exceeding threshold CS doses were reviewed by an independent uveitis specialist and judged as avoidable or not, based upon a scoring matrix. RESULTS: Of 667 eligible patients, 285 (42.7%) were treated with oral or IV CS over the preceding 12 months; 96 (33.7%) of these exceeded the threshold for high-dose CS. Twenty-five percent of prescribing in patients on excess CS was judged avoidable; attributed to either prescribing long-term CS without evidence of consideration of alternative strategies, prescribing error or miscommunication. More patients received immunomodulatory therapy (IMT) in the group treated with CS above threshold than below threshold (p < 0.001) but there was no significant difference in doses of IMT. CONCLUSION: 33% of patients had been prescribed excessive corticosteroid when compared to the reference standard. An analysis of decision-making suggests there may be opportunity to reduce excess CS prescribing in 25% of these patients.


Subject(s)
Uveitis , Adrenal Cortex Hormones/adverse effects , Glucocorticoids/adverse effects , Humans , Inflammation/drug therapy , Methylprednisolone/adverse effects , United Kingdom , Uveitis/drug therapy , Vision Disorders/drug therapy
16.
PeerJ ; 9: e10778, 2021.
Article in English | MEDLINE | ID: mdl-33628638

ABSTRACT

BACKGROUND: Microbial keratitis is a leading cause of preventable blindness worldwide. Conventional sampling and culture techniques are time-consuming, with over 40% of cases being culture-negative. Nanopore sequencing technology is portable and capable of generating long sequencing reads in real-time. The aim of this study is to evaluate the potential of nanopore sequencing directly from clinical samples for the diagnosis of bacterial microbial keratitis. METHODS: Using full-length 16S rRNA amplicon sequences from a defined mock microbial community, we evaluated and benchmarked our bioinformatics analysis pipeline for taxonomic assignment on three different 16S rRNA databases (NCBI 16S RefSeq, RDP and SILVA) with clustering at 97%, 99% and 100% similarities. Next, we optimised the sample collection using an ex vivo porcine model of microbial keratitis to compare DNA recovery rates of 12 different collection methods: 21-gauge needle, PTFE membrane (4 mm and 6 mm), Isohelix™ SK-2S, Sugi® Eyespear, Cotton, Rayon, Dryswab™, Hydraflock®, Albumin-coated, Purflock®, Purfoam and Polyester swabs. As a proof-of-concept study, we then used the sampling technique that provided the highest DNA recovery, along with the optimised bioinformatics pipeline, to prospectively collected samples from patients with suspected microbial keratitis. The resulting nanopore sequencing results were then compared to standard microbiology culture methods. RESULTS: We found that applying alignment filtering to nanopore sequencing reads and aligning to the NCBI 16S RefSeq database at 100% similarity provided the most accurate bacterial taxa assignment. DNA concentration recovery rates differed significantly between the collection methods (p < 0.001), with the Sugi® Eyespear swab providing the highest mean rank of DNA concentration. Then, applying the optimised collection method and bioinformatics pipeline directly to samples from two patients with suspected microbial keratitis, sequencing results from Patient A were in agreement with culture results, whilst Patient B, with negative culture results and previous antibiotic use, showed agreement between nanopore and Illumina Miseq sequencing results. CONCLUSION: We have optimised collection methods and demonstrated a novel workflow for identification of bacterial microbial keratitis using full-length 16S nanopore sequencing.

17.
Ophthalmology ; 128(8): 1209-1221, 2021 08.
Article in English | MEDLINE | ID: mdl-33515595

ABSTRACT

PURPOSE: To develop an agreed upon set of outcomes known as a "core outcome set" (COS) for noninfectious uveitis of the posterior segment (NIU-PS) clinical trials. DESIGN: Mixed-methods study design comprising a systematic review and qualitative study followed by a 2-round Delphi exercise and face-to-face consensus meeting. PARTICIPANTS: Key stakeholders including patients diagnosed with NIU-PS, their caregivers, and healthcare professionals involved in decision-making for patients with NIU-PS, including ophthalmologists, nurse practitioners, and policymakers/commissioners. METHODS: A long list of outcomes was developed based on the results of (1) a systematic review of clinical trials of NIU-PS and (2) a qualitative study of key stakeholders including focus groups and interviews. The long list was used to generate a 2-round Delphi exercise of stakeholders rating the importance of outcomes on a 9-point Likert scale. The proportion of respondents rating each item was calculated, leading to recommendations of "include," "exclude," or "for discussion" that were taken to a face-to-face consensus meeting of key stakeholders at which they agreed on the final COS. MAIN OUTCOME MEASURE: Items recommended for inclusion in the COS for NIU-PS. RESULTS: A total of 57 outcomes grouped in 11 outcome domains were presented for evaluation in the Delphi exercise, resulting in 9 outcomes directly qualifying for inclusion and 15 outcomes being carried forward to the consensus meeting, of which 7 of 15 were agreed on for inclusion. The final COS contained 16 outcomes organized into 4 outcome domains comprising visual function, health-related quality of life, treatment side effects, and disease control. CONCLUSIONS: This study builds on international work across the clinical trials community and our qualitative research to construct the world's first COS for NIU-PS. The COS provides a list of outcomes that represent the priorities of key stakeholders and provides a minimum set of outcomes for use in all future NIU-PS clinical trials. Adoption of this COS can improve the value of future uveitis clinical trials and reduce noninformative research. Some of the outcomes identified do not yet have internationally agreed upon methods for measurement and should be the subject of future international consensus development.


Subject(s)
Clinical Trials as Topic/methods , Endpoint Determination/methods , Outcome Assessment, Health Care/methods , Uveitis, Posterior/therapy , Adult , Aged , Caregivers/psychology , Consensus , Delphi Technique , Female , Humans , Male , Middle Aged , Ophthalmologists/psychology , Patients/psychology , Quality of Life , Research Design , Systematic Reviews as Topic , Uveitis, Posterior/diagnosis , Uveitis, Posterior/psychology , Visual Acuity/physiology
19.
Ocul Immunol Inflamm ; 29(5): 890-895, 2021 Jul 04.
Article in English | MEDLINE | ID: mdl-31944132

ABSTRACT

Purpose: To evaluate adherence to topical medication in patients with inflammatory eye disease.Methods: Questionnaire survey of patients attending inflammatory eye disease clinics. Treatment regimen was validated against hospital-generated clinic letters.Results: There were 86 patients (52 uveitis and 34 ocular surface disease) with 30% (26/86) failing to identify one or more of the medications they were using, and 28% (24/86) unable to offer the correct indication for their treatment. A total of 64% (55/86) failed to use their medication as advised (27% on a daily basis); the commonest reason being forgetfulness. In patients using multiple eye drops, 26% left insufficient time intervals between successive eye drops, and 58% (50/86) reported not being given any instruction on drop instillation.Conclusions: We highlight poor adherence to topical medication in patients with inflammatory eye disease. We recommend a dedicated practitioner providing a proactive approach to patient education to improve adherence.


Subject(s)
Keratoconjunctivitis/drug therapy , Medication Adherence/statistics & numerical data , Ophthalmic Solutions/administration & dosage , Uveitis/drug therapy , Administration, Ophthalmic , Adult , Aged , Aged, 80 and over , Anti-Bacterial Agents/administration & dosage , Anti-Inflammatory Agents/administration & dosage , Antiviral Agents/administration & dosage , Female , Glucocorticoids/administration & dosage , Humans , Immunosuppressive Agents/administration & dosage , Inflammation/drug therapy , Lubricant Eye Drops , Male , Middle Aged , Surveys and Questionnaires , Young Adult
20.
Ocul Immunol Inflamm ; 29(7-8): 1537-1539, 2021 Nov 17.
Article in English | MEDLINE | ID: mdl-32255718

ABSTRACT

Purpose: To study the complication rate of Nd:YAG laser posterior capsulotomy in patients with uveitis.Method: Retrospective case note analysis of pseudophakic uveitis patients having undergone Nd:YAG laser posterior capsulotomy between January 2016 and December 2018. Complications documented included uveitis flare, raised intraocular pressure, intraocular lens damage/displacement, cystoid macular edema, and retinal detachment.Results: There were 39 eyes of 38 patients (20M, 18F; age 27-89 years). Mean interval between cataract surgery and laser was 55 months (range 8-286 months). Mean laser energy was 79 mJ (range 33-207 mJ). At 3 months 62% of eyes achieved a 2-5 Snellen line improvement that was maintained at 12 months. Vision was unchanged in 21% of eyes due to preexisting pathology, with no eyes having worse vision. No post-laser complications were documented.Conclusions: Nd:YAG laser posterior capsulotomy is a safe procedure in uveitis patients, resulting in a good improvement in vision.


Subject(s)
Laser Therapy/methods , Lasers, Solid-State/therapeutic use , Posterior Capsulotomy/methods , Uveitis/complications , Adult , Aged , Aged, 80 and over , Female , Humans , Intraocular Pressure , Lens Implantation, Intraocular , Male , Middle Aged , Phacoemulsification , Pseudophakia/complications , Retrospective Studies , Tonometry, Ocular , Visual Acuity/physiology
SELECTION OF CITATIONS
SEARCH DETAIL
...