Augmented Reality (AR) headsets extended with eye-tracking, a promising input technology for its natural and implicit nature, open a wide range of new interaction capabilities for everyday use. In this paper we present ARtention, a design space for gaze interaction specifically tailored for in-situ AR information interfaces. It highlights three important dimensions to consider in the UI design of such gaze-enabled applications: transitions from reality to the virtual interface, from single- to multi-layer content, and from information consumption to selection tasks. Such transitional aspects bring previously isolated gaze interaction concepts together to form a unified AR space, enabling more advanced application control seamlessly mediated by gaze. We describe these factors in detail. To illustrate how the design space can be used, we present three prototype applications and report informal user feedback obtained from different scenarios: a conversational UI, viewing a 3D visualization, and browsing items for shopping. We conclude with design considerations derived from our development and evaluation of the prototypes. We expect these to be valuable for researchers and designers investigating the use of gaze input in AR systems and applications.

具有眼动追踪功能的增强现实（AR）耳机具有自然和隐含的特性，是一种很有前途的输入技术，它为日常使用打开了许多新的交互功能。在本文中，我们介绍了ARtention，这是一种专为原位AR信息接口量身定制的注视交互设计空间。它着重指出了在此类支持凝视的应用程序的UI设计中要考虑的三个重要方面：从现实到虚拟界面的过渡，从单层到多层的内容的过渡，以及从信息消耗到选择任务的过渡。这些过渡方面将以前隔离的凝视交互概念汇集在一起​​，以形成一个统一的AR空间，从而实现了由凝视无缝介导的更高级的应用程序控制。我们将详细描述这些因素。为了说明如何使用设计空间，我们展示了三个原型应用程序，并报告了从不同场景中获得的非正式用户反馈：对话UI，查看3D可视化以及浏览购物项目。我们以对原型的开发和评估得出的设计考虑作为结论。我们希望这些对于研究AR系统和应用程序中注视输入的使用的研究人员和设计人员来说是有价值的。