Observational studyBMJ open2020
Assault-related severe ocular chemical injury at a London ophthalmic referral hospital: a 3-year retrospective observational study.
Observational study in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed, 5 citations in OpenAlex.
- Acid and Alkali Chemical Assault Burns (Vitriolage): A Systematic Review of Epidemiology.Plastic and reconstructive surgery. Global open · 2025Article
- Severe ocular chemical injury in the UK: a British Ophthalmological Surveillance Unit study.Eye (London, England) · 2024Article
- Chemical toxic exposures and chronic ocular pain.Frontiers in toxicology · 2023Review
Corrections and comments
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Authors and funding
3 authors at 1 institution in 2 countries.
Funding
Abstract
objectivesTo understand the incidence, causes, management and outcomes of intentional (assault) and unintentional severe ocular chemical injuries (SOCI) at an urban tertiary referral centre in the UK.
designRetrospective observational study.
settingA London tertiary referral ophthalmic centre, Moorfields Eye Hospital.
participantsAll cases of SOCI presenting between 1 September 2011 and 31 August 2014 were identified. The definition of SOCI was grade 3 or 4 on the Hughes-Roper-Hall classification system. We identified 25 cases (6 in 2011-2012, 8 in 2012-2013, 11 in 2013-2014). Median age was 31.1 years. 23 cases (92%) were male. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome was the proportion of cases of SOCI caused by assault, per year. Secondary outcome measures included the number of cases of SOCI, injury characteristics and mechanism, initial and long-term management, visual outcome and the need for surgical intervention.
resultsBetween 2011 and 2012, 3/6 cases were due to assault (50%); between 2012 and 2013, 7/8 were due to assault (87.5%); and between 2013 and 2014, 6/11 were due to assault (54.4%). Assault was responsible for 16/25 (64%) cases overall, while 8/25 (32%) cases were work related. The causative agent was known to be alkali in 16/25 (64%), while 10/25 (40%) did not complete the follow-up. The mean number of clock hours of limbal ischaemia was 5.24 (SD 2.97). 17/25 (68%) were Hughes-Roper-Hall grade 3. Surgical intervention occurred in 1/25. The final best-corrected visual acuity was 6/12 or worse in 11/25 (44%) and was counting fingers or worse in 4/25 (16%).
conclusionsPrevious studies found that SOCI had a low incidence and that work-related injuries were the most common cause. Our study demonstrates an increasing incidence of SOCI, which may be accounted for by a rise in assault using corrosive substances. A high number of patients did not attend regularly for follow-up and visual outcomes from these injuries are poor.
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