ABSTRACT

We introduce here a new mouse cursor designed to facilitate the use of the mouse by people with peripheral vision loss. The pointer consists of a collection of converging straight lines covering the whole screen and following the position of the mouse cursor. We measured its positive effects in a group of participants with peripheral vision loss of different kinds and found that it can reduce by a factor of seven the time required to complete a targeting task using the mouse. Using eye tracking, we show that this system makes it possible to initiate the movement toward the target without having to precisely locate the mouse pointer. Using Fitts’ Law, we compare these performances with those of full visual field users in order to understand the relation between the accuracy of the estimated mouse cursor position and the index of performance obtained with our tool.

摘要

我们在这里介绍一种新的鼠标光标，旨在方便周围视力丧失的人使用鼠标。指针由一组覆盖整个屏幕并跟随鼠标光标位置的会聚直线组成。我们在一组患有不同类型周边视力丧失的参与者中测量了它的积极作用，发现它可以将使用鼠标完成目标任务所需的时间减少七倍。使用眼动追踪，我们表明该系统可以启动向目标的移动，而无需精确定位鼠标指针。使用菲茨定律，