Childhood uveitis not associated with juvenile idiopathic arthritis: a national survey of incidence, management and visual outcomes.

AIMS: To estimate the incidence of childhood uveitis not associated with juvenile idiopathic arthritis (JIA) in the United Kingdom. METHODS: Children under 16 years who presented with a new diagnosis of uveitis from November 2014 to October 2015 were identified prospectively through the British and Scottish Ophthalmological Surveillance Unit reporting card system. Incident questionnaires were sent to reporting ophthalmologists at presentation and 12 months. RESULTS: From 1st November 2014 to 31st October 2015, 119 cases were reported. Thirty-nine cases were excluded. The estimated minimum annual incidence of non-JIA uveitis in children younger than 16 years is 0.66 per 100,000 (95% CI 0.52-0.82). Median age at presentation was 10 years. 73% had bilateral uveitis. Median (IQR) BCVA in the worse eye was 0.3 (IQR 0.1-0.66) logMAR. The location of uveitis was: anterior 36%, intermediate 24%, posterior 6.8% and panuveitis 30%. 70% of cases were idiopathic. Most children were started on topical corticosteroids at presentation (86%, n = 51). At presentation, 31% (n = 19) were on started on systemic corticosteroids. At 1 year only 13% (n = 7) remained on corticosteroids, with the majority transitioned to steroid-sparing agents: methotrexate (30.8%, n = 16), mycophenolate (5.8%) and anti-TNF agents 5 (9.6%). At 1 year, 46% had ongoing intraocular inflammation despite treatment. The most common ocular adverse event was raised intraocular pressure (13.5%, n = 7). CONCLUSION: Our study provides the first national population-based data of non-JIA childhood uveitis. Most children remain on treatment at 1 year, but visual acuity improves and none were eligible for sight-impairment registration.

Endonasal versus external dacryocystorhinostomy for nasolacrimal duct obstruction.

BACKGROUND: A dacryocystorhinostomy (DCR) procedure aims to restore drainage of tears by bypassing a blockage in the nasolacrimal duct, through the creation of a bony ostium that allows communication between the lacrimal sac and the nasal cavity. It can be performed using endonasal or external approaches. The comparative success rates of these two approaches have not yet been established and this review aims to evaluate the relevant up-to-date research. OBJECTIVES: The primary aim of this review is to compare the success rates of endonasal DCR with that of external DCR. The secondary aim is to compare the complication rates between the two procedures. SEARCH METHODS: We searched CENTRAL (which contains the Cochrane Eyes and Vision Group Trials Register) (2016, Issue 8), Ovid MEDLINE, Ovid MEDLINE In-Process and Other Non-Indexed Citations, Ovid MEDLINE Daily, Ovid OLDMEDLINE (January 1946 to 22 August 2016), Embase (January 1980 to 22 August 2016), Latin American and Caribbean Health Sciences Literature Database (LILACS) (January 1982 to 22 August 2016), Web of Science Conference Proceedings Citation Index- Science (CPCI-S) (January 1990 to 22 August 2016), the ISRCTN registry (www.isrctn.com/editAdvancedSearch), ClinicalTrials.gov (www.clinicaltrials.gov) and the World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) (www.who.int/ictrp/search/en). We did not use any date or language restrictions in the electronic searches for trials. We last searched the electronic databases on 22 August 2016. We requested or examined relevant conference proceedings for appropriate trials. SELECTION CRITERIA: We included all randomised controlled trials (RCTs) comparing endonasal and external DCRs. DATA COLLECTION AND ANALYSIS: Two review authors independently assessed studies for eligibility and extracted data on reported outcomes. We attempted to contact investigators to clarify the methodological quality of the studies. We graded the certainty of the evidence using GRADE. MAIN RESULTS: We included two trials in this review. One trial from Finland compared laser-assisted endonasal DCR with external DCR, and one trial from India compared mechanical endonasal DCR (using punch forceps) with external DCR. The trials were poorly reported and it was difficult to judge the extent to which bias had been avoided.Anatomic success was defined as the demonstration of a patent lacrimal passage on syringing, or endoscopic visualisation of fluorescein dye at the nasal opening of the anastomoses after a period of at least six months following surgery. Subjective success was defined as the resolution of symptoms of watering following surgery after a period of at least six months. Both included trials used anatomic patency demonstrated by irrigation as a measure of anatomic success. Different effects were seen in these two trials (I2 = 76%). People receiving laser-assisted endonasal DCR were less likely to have a successful operation compared with external DCR (63% versus 91%; risk ratio (RR) 0.69, 95% confidence intervals (CI) 0.52 to 0.92; 64 participants). There was little or no difference in success comparing mechanical endonasal DCR and external DCR (90% in both groups; RR 1.00, CI 0.81 to 1.23; 40 participants). We judged this evidence on success to be very low-certainty, downgrading for risk of bias, imprecision and inconsistency. The trial from Finland also assessed subjective improvement in symptoms following surgery. Resolution of symptoms of watering in outdoor conditions was reported by 84% of the participants in the external DCR group and 59% of those in the laser-assisted endonasal DCR group (RR 0.70, CI 0.51 to 0.97; 64 participants, low-certainty evidence).There were no cases of intraoperative bleeding in any participant in the trial that compared laser-assisted endonasal DCR to external DCR. This was in contrast to the trial comparing mechanical endonasal DCR to external DCR in which 45% of participants in both groups experienced intraoperative bleeding (RR 1.00, 95% CI 0.50 to 1.98; 40 participants). We judged this evidence on intraoperative bleeding to be very low-certainty, downgrading for risk of bias, imprecision and inconsistency.There were only two cases of postoperative bleeding, both in the external DCR group (RR 0.33, 95% CI 0.04 to 3.10; participants = 104; studies = 2). There were only two cases of wound infection/gaping, again both in the external DCR group (RR 0.20, CI 0.01 to 3.92; participants = 40; studies = 1). We judged this evidence on complications to be very low-certainty, downgrading one level for risk of bias and two levels for imprecision due to the very low number of cases. AUTHORS' CONCLUSIONS: There is uncertainty as to the relative effects of endonasal and external DCR. Differences in effect seen in the two trials included in this review may be due to variations in the endonasal technique, but may also be due to other differences between the trials. Future larger RCTs are required to further assess the success and complication rates of endonasal and external DCR. Different techniques of endonasal DCR should also be assessed, as the choice of endonasal technique can influence the outcome. Strict outcome criteria should be adopted to assess functional and anatomical outcomes with a minimal follow-up of six months.

Management of patients with Graves' orbitopathy: initial assessment, management outside specialised centres and referral pathways.

Graves' orbitopathy (GO) is uncommon, but responsible for considerable morbidity. A coordinated approach between healthcare professionals is required in order to meet the needs of patients. Early diagnosis can be achieved by a simple clinical assessment. Low-cost effective interventions can be initiated by generalists, which may improve outcomes. Moderate-to-severe GO should be referred to specialised centres. Recommendations for clinical diagnosis, initial management and referral pathways are highlighted.

Recent trends in glaucoma surgery in Scotland, England and Wales.

OBJECTIVE: To evaluate national trends of trabeculectomy, aqueous shunts and cycloablation performed in Scotland, England and Wales from 1993 to 2012. METHODS: The annual numbers of trabeculectomies and aqueous shunts carried out between 1993 and 2012 were obtained from national Scottish, English and Welsh National Health Service databases. The annual rates of trabeculectomy, aqueous shunts and cycloablation were calculated per 100,000 of the population and analysed in the following age groups: 0-14 years, 15-59 years, over 60 years. RESULTS: The highest annual rate of trabecuelctomy was in 1995, this was followed by a sharp decline and subsequent stable rates since 2000. The total annual rates of aqueous shunts have increased more than sixfold from 2003 to 2012. In the 0-14 years age group from 2003 to 2012 the ratio of trabeculectomy to aqueous shunts has reversed; trabeculectomy rates have decreased while rates of aqueous shunts have increased. From 2003 to 2012, rates of cyclocryotherapy have reduced while rates of photocoagulation to the ciliary body have doubled. CONCLUSIONS: Trabeculectomy is the most commonly performed glaucoma operation. Aqueous shunts are rapidly increasing in the surgical management of glaucoma. During the study period, the ratio of trabeculectomy to aqueous shunts has reversed in the younger age group (0-14 years). Rates of cyclocyrotherapy to the ciliary body have dramatically declined while laser photocoagulation to the ciliary body is gaining wider acceptability.

Decrease in the rate of esotropia surgery in the United Kingdom from 2000 to 2010.

BACKGROUND/AIMS: A decrease in strabismus surgery in children has been previously documented in the UK. This study aims to examine whether the incidence of strabismus surgery in children is still decreasing and, if so, the possible reasons for this. METHODS: Data on strabismus surgery from 2000 to 2010 in children in Scotland, England and Wales were obtained. Population statistics for the age group 0-14 years were obtained for England, Scotland and Wales. Annual incidence of strabismus surgery per 100 000 age-specific population was calculated. Data on the number of sight tests in children conducted by the hospital eye service from 1995 to 2004 in these regions were also obtained. RESULTS: From 2000 to 2006, the annual incidence of paediatric strabismus operations decreased significantly in England (p=0.01) and Scotland (p=0.03), and showed a decreasing trend in Wales (p=0.06). Surgical rates, however, remained fairly constant from 2006 to 2010. The number of sight tests in children performed by the hospital eye service has remained fairly constant from 1995 to 2004 in England, Wales and Scotland. CONCLUSIONS: Rates of strabismus surgery in children, especially for esotropia, continued to decrease between 2000 and 2006, but may have stabilised from 2006 to 2010.

Development of allele-specific therapeutic siRNA in Meesmann epithelial corneal dystrophy.

BACKGROUND: Meesmann epithelial corneal dystrophy (MECD) is an inherited eye disorder caused by dominant-negative mutations in either keratins K3 or K12, leading to mechanical fragility of the anterior corneal epithelium, the outermost covering of the eye. Typically, patients suffer from lifelong irritation of the eye and/or photophobia but rarely lose visual acuity; however, some individuals are severely affected, with corneal scarring requiring transplant surgery. At present no treatment exists which addresses the underlying pathology of corneal dystrophy. The aim of this study was to design and assess the efficacy and potency of an allele-specific siRNA approach as a future treatment for MECD. METHODS AND FINDINGS: We studied a family with a consistently severe phenotype where all affected persons were shown to carry heterozygous missense mutation Leu132Pro in the KRT12 gene. Using a cell-culture assay of keratin filament formation, mutation Leu132Pro was shown to be significantly more disruptive than the most common mutation, Arg135Thr, which is associated with typical, mild MECD. A siRNA sequence walk identified a number of potent inhibitors for the mutant allele, which had no appreciable effect on wild-type K12. The most specific and potent inhibitors were shown to completely block mutant K12 protein expression with negligible effect on wild-type K12 or other closely related keratins. Cells transfected with wild-type K12-EGFP construct show a predominantly normal keratin filament formation with only 5% aggregate formation, while transfection with mutant K12-EGFP construct resulted in a significantly higher percentage of keratin aggregates (41.75%; p<0.001 with 95% confidence limits). The lead siRNA inhibitor significantly rescued the ability to form keratin filaments (74.75% of the cells contained normal keratin filaments; p<0.001 with 95% confidence limits). CONCLUSIONS: This study demonstrates that it is feasible to design highly potent siRNA against mutant alleles with single-nucleotide specificity for future treatment of MECD.

A systematic review of outcomes after dacryocystorhinostomy in adults.

BACKGROUND: This study was designed to systematically review the clinical outcomes of dacryocystorhinostomy (DCR) surgery. Data sources included PubMed for English language literature from January 1966 to December 2008 combined with a manual review of citations within article bibliographies. METHODS: Citations acquired from the targeted search were filtered independently by two researchers. Relevant articles were reviewed to obtain information including interventions and outcome measures. The surgical techniques were categorized into external DCR (EX-DCR), endonasal laser-assisted DCR (LA-DCR), and nonlaser endoscopic endonasal DCR techniques (EN-DCR). Articles were then assigned level-of-evidence grades as defined by the Oxford Center for Evidence-Based Medicine. RESULTS: A total of 73 studies that fulfilled the inclusion criteria were analyzed. Of these, 68 were graded as level 4, 11 were graded as level 3b, and 1 was graded at level 2b evidence. A total of 4800 patients were pooled, from which 4921 DCRs were performed. All studies reported success during the follow-up period, although the outcome measures used were not consistent in the studies. Success varied between 65 and 100% after EX-DCR compared with EN-DCR, which varied from 84 to 94%. The success rate of LA-DCR varied widely between 47 and 100%. There was low evidence base to support the use of silicone stent to improve surgical success. Most studies did not show significantly improved outcomes with an antimetabolite. The overall intra- and postoperative complication rates were 1.0 and 6%, respectively. CONCLUSION: DCR is an effective and safe method for the treatment of nasolacrimal obstruction. Meta-analysis of outcomes was not feasible because of the heterogenous patient groups and outcome measures used. Nonetheless, the literature provides considerable levels 3 and 4 evidence to support DCR surgery in adults. Outcomes after EN-DCR and EX-DCR were comparable. The failure rate for LA-DCR was higher.

Blow-out fractures: patterns of ocular motility and effect of surgical repair.

The decision to repair an orbital blow-out fracture depends on several factors, but evidence for the optimum timing of surgery is not clear. We retrospectively studied all patients with orbital injuries who were referred to the eye department at a Scottish teaching hospital over a 10-year period from 1997 to 2006. We aimed to document the incidence and pattern of disturbances of ocular motility after blow-out fractures, and identify the rates of early and late resolution of these deficits, both spontaneously and after surgical repair. We found that most patients with blow-out fractures had a motility defect for an acute phase; approximately one third of which resolved spontaneously within 2 weeks. Recovery of motility after orbital surgery occurred in less than half the patients, and was not immediate. Continuing recovery also occurred in those who did not undergo surgery. Entrapment of muscle or tissue is not the only cause of motility disturbance after blow-out fractures, and orbital surgery is only one aspect of management in those patients with persistent motility defects.

A systematic review of outcomes following surgical decompression for dysthyroid orbitopathy.

OBJECTIVES: To systematically review and compare the surgical outcomes of orbital decompression for dysthyroid orbitopathy. METHODS: Data sources used were PubMed, EMBASE, and Cochrane search for English-language literature from January 1990 to April 2008, combined with manual review of citations within article bibliographies. Citations acquired from the targeted search were filtered independently by two researchers. Relevant articles were reviewed to obtain information including interventions and outcome measures. Articles were then assigned level-of-evidence grades as defined by the Oxford Centre for Evidence-Based Medicine. RESULTS: A total of 516 citations were generated from which 135 abstracts were regarded as potentially relevant. After other relevant articles identified from the bibliography and duplicate articles excluded, 56 studies were available for analysis. Fifty studies were identified as level 4 and six as level 3 evidence. A total of 2,315 patients were pooled, from which 4,176 orbits were decompressed. Fifteen different surgical techniques were broadly identified. The most common surgical indication was cosmesis. Decompression by combined transpalpebral-endoscopic technique resulted in the highest average reduction in postoperative proptosis. The largest improvement in visual acuity was after coronal approach orbital decompression. The overall complication rate was 9.3%. The most significant complications were vision loss and cerebral vascular accident. The highest complication rate was associated with combined endoscopic and transpalpebral decompression. CONCLUSIONS: There are myriad techniques in practice for decompressing the orbit, but no one technique has yet to achieve consistently good outcome and low complication rates. The reporting of outcomes should conform to a minimum dataset. Laryngoscope, 2009.

Diabetic retinopathy: more patients, less laser: a longitudinal population-based study in Tayside, Scotland.

OBJECTIVE: We aim to correlate the incidence of diabetic retinopathy and maculopathy requiring laser treatment with the control of risk factors in the diabetic population of Tayside, Scotland, for the years 2001-2006. RESEARCH DESIGN AND METHODS: Retinal laser treatment, retinal screening, and diabetes care databases were linked for calendar years 2001-2006. Primary end points were the numbers of patients undergoing first or any laser treatment for diabetic retinopathy or maculopathy. Mean A1C and blood pressure and retinal screening rates were followed over the study period. RESULTS: Over 6 years, the number of patients with diabetes in Tayside increased from 9,694 to 15,207 (57% increase). The number of patients receiving laser treatment decreased from 222 to 138 and first laser treatments decreased from 100 (1.03% of diabetic population) to 56 (0.37%). The number of patients with type 2 diabetes treated for maculopathy decreased from 180 in 2001 to 103 in 2006 (43% reduction, P = 0.03). Mean A1C decreased for type 1 and type 2 diabetic populations (P < 0.01) and a reduction in blood pressure was observed in type 2 diabetic patients (P < 0.01). The number of patients attending annual digital photographic retinopathy screening increased from 3,012 to 11,932. CONCLUSIONS: Laser treatment for diabetic maculopathy in type 2 diabetic patients has decreased in Tayside over a six-year period, despite an increased prevalence of diabetes and increased screening effort. We propose that earlier identification of type 2 diabetes and improved risk factor control has reduced the incidence of maculopathy severe enough to require laser treatment.