This study aimed to explore the effects of COVID-19 and the lockdown measures adopted in England on patients with acute mental illness.Methods: The authors analyzed referrals to the crisis resolution and home treatment (CRHT) team and inpatient admissions to acute adult wards, at Leicestershire Partnership National Health Service Trust, an integrated community and mental health trust in the United Kingdom. Number of CRHT referrals and inpatient admissions during a 4-week period starting March 16, 2020 ("COVID-19 period"), was studied and compared with the same period in 2018 and 2019 ("control periods"). Demographic and clinical characteristics of patients admitted during the COVID-19 period were compared with those admitted during the 2019 control period.Results: The number of CRHT referrals and inpatient admissions were lower during the COVID-19 period, compared with the control periods, by approximately 12% and 20%, respectively. Patients admitted during the COVID-19 period were significantly more often detained under the Mental Health Act and were considered to pose a risk of aggression. The pattern of diagnoses differed significantly between 2020 and 2019. A higher percentage of patients admitted during the COVID-19 period were diagnosed as having nonaffective psychotic disorders (52% versus 35%) or bipolar disorder (25% versus 15%), and fewer received a diagnosis of depression (8% versus 16%), anxiety disorder (0% versus 3%), adjustment disorder (0% versus 8%), emotionally unstable personality disorder (6% versus 15%), or any other personality disorder (0% versus 5%) (p=0.01).Conclusions: These findings suggest that the pandemic has profoundly affected care by acute mental health services.

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Our novel findings demonstrate considerable retinal layer abnormalities in schizophrenia that are related to clinical features and visual function. With time, SD-OCT could provide easily-measurable biomarkers to facilitate clinical assessment and further our understanding of the disease.