Scanlon Peter H
Gloucestershire Retinal Research Group, Gloucestershire Hospitals NHS Foundation Trust, Office above Oakley Ward, Cheltenham General Hospital, Sandford Road, Cheltenham, GL53 7AN, UK.
Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Headley Way, Headington, Oxford, OX3 9DU, UK.
Curr Diab Rep. 2017 Sep 5;17(10):96. doi: 10.1007/s11892-017-0928-6.
The purpose of this study is to review the evidence that lower risk groups who could safely be screened less frequently for sight-threatening diabetic retinopathy (DR) than annually.
Data have demonstrated that people with no DR in either eye are at a low risk of progression to sight-threatening DR over a 2-year period (event rate 4.8 per 1000 person years), irrespective of whether the screening method is one-field non-mydriatic or two-field mydriatic digital photography. Low risk has been defined as no retinopathy on two consecutive screening episodes or no retinopathy on one screening episode combined with risk factor data. The risk of an extension to 2 years is less than 5 per 1000 person years in a population with a national screening programme, and the general standard of diabetes care is relatively good, whether low risk is defined as no retinopathy on two consecutive screening episodes or no retinopathy on one screening episode combined with other risk factor data. The definition used in different populations is likely to depend on the availability of data.
本研究旨在回顾相关证据，即对于较低风险群体，可安全地减少对威胁视力的糖尿病视网膜病变（DR）的筛查频率，而非每年进行一次筛查。
数据表明，双眼均无DR的人群在2年期间进展为威胁视力的DR的风险较低（事件发生率为每1000人年4.8例），无论筛查方法是单视野非散瞳还是双视野散瞳数码摄影。低风险被定义为连续两次筛查均无视网膜病变，或一次筛查无视网膜病变并结合风险因素数据。在实施全国筛查计划且糖尿病护理总体水平相对良好的人群中，延长至2年的风险低于每1000人年5例，无论低风险是定义为连续两次筛查无视网膜病变，还是一次筛查无视网膜病变并结合其他风险因素数据。不同人群中使用的定义可能取决于数据的可获得性。
