CIE 243:2020的主题是道路和车辆照明环境下的不适眩光。本文概述了影响不适眩光的研究方法、数学模型和变量。该报告描述了与不适眩光的评估和测量相关的困难，以及模型中的差异。本报告的一个目的是鼓励使用本报告中提出的建议所提供的方法，对不适眩光进行进一步研究。这样的研究将产生更多可靠的数据，从而开发出更可靠的模型。其目的是在适当的时候用这些额外的数据和修订的不适眩光模型更新本报告。

The topic of CIE 243:2020 is discomfort glare in the context of road and vehicle lighting. It provides an overview of the research methods, mathematical models and the variables which are considered to influence discomfort glare. The report describes the difficulties associated with the evaluation and measurement of discomfort glare and the variance in the models.One aim of the report is to encourage further research on discomfort glare using methods informed by the proposals raised in this report. Such research will generate a greater body of credible data, thus enabling the development of a more robust model. It is intended to update this report in due course with these additional data and a revised discomfort glare model.