To assess the impact of opening a large community-based asynchronous review ophthalmic clinic on attendance delays among patients with stable chronic eye disease attending a London teaching eye hospital network.

Interrupted time-series analysis of routine electronic health records of appointment attendances.

A large eye hospital network with facilities across London, UK, between June 2018 and April 2023.

We analysed 69 257 attendances from 39 357 patients, with glaucoma and medical retina accounting for 62% (n=42 982) and 38% (n=26 275) of visits, respectively. Patients over 65 made up 54% (n=37 824) of attendances, while 53% (n=37 014) were from the more deprived half of the population, and 51% (n=35 048) were males.

An asynchronous review clinic opened in a shopping centre in London, in autumn 2021, following the COVID-19 lockdown in spring 2020.

Average attendance delays (days), calculated as the difference between follow-up attendance date and the latest clinically appropriate date determined at the preceding attendance.

Pre-COVID-19, attendance delays for chronic eye disease monitoring were increasing by 0.9 days per week (95% CI, 0.8 to 0.9) on average, worsening to 2.0 days per week (95% CI, 2.0 to 2.0) after the first COVID-19 national lockdown, mid-March 2020. Opening the asynchronous review clinic increased appointment capacity, with delays decreasing on average by 8.1 days per week (95% CI, 8.1 to 8.2) shortly after opening. The rate of decrease slowed to 0.3 days per week (95% CI, 0.3 to 0.3) after 5 months. We found no significant differences in average attendance delays by age, gender or level of deprivation.

The asynchronous review clinic significantly reduced attendance delays across the hospital network, addressing pre-existing backlog for stable chronic eye diseases. The reduction appeared to be maintained after the initial backlog had been cleared.

Social media sites are increasingly used to assess and treat different mental health problems in adolescents and young adults. However, it is still unclear which social network sites are the most used for this purpose and what interventions for tackling unhealthy body image have been validated. This systematic review will assess evidence on the effectiveness of social media interventions in improving unhealthy body image among adolescents and young adults.

Five databases, including Embase, Scopus, MEDLINE, Web of Science (Core Collection) and PsycINFO, will be consulted, with a publication window starting in 2011 and ending on 31 October 2024. Rayyan software will detect and eliminate duplicates. We will include only studies based on social media-based interventions for adolescents and young adults with body image problems. Two independent reviewers will screen titles, abstracts and full-text articles, resolving conflicts through discussion with a third reviewer as needed. The two reviewers will complete the risk of bias assessments for each included study, using the Joanna Briggs Institute critical appraisal checklists for randomised controlled trials and quasi-experimental studies. We will report on the characteristics of studies, participants and interventions in descriptive narrative form, along with the results from the assessment of social media interventions.

Universidad Cesar Vallejo’s ethics committee approved this systematic review protocol as part of a wider project (code 100-CEI-EPM-UCV-2022). Results will be shared via social media to engage stakeholders and promote awareness of body image issues.