Metamorphopsia patients experience distortions in their views. The number of metamorphopsia patients is arising with the increase in the elderly population. For early detection of metamorphopsia, examination approaches have been proposed. However, none of the existing methods can be employed to precisely assess the perceptions of patients. We propose LineM as a novel method to precisely measure the distorted views of metamorphopsia patients based on interactive line manipulation task involving the patients. To explore the potential of LineM, a case study which uses the measured results from LineM to visualize the distorted views of metamorphopsia patients is presented. Furthermore, a novel technique for compensating the distorted views of individual metamorphopsia patients using the results from LineM is also presented. Considering that elderly individuals account for the majority of metamorphopsia patients, an intuitive and user-friendly prototype system has been implemented. The effectiveness and usability of LineM and the compensation method were demonstrated via a qualitative and subjective experiment that involved metamorphopsia patients and elderly participants.

变形症患者的视线出现扭曲。随着老年人口的增加，变态患者的数量正在增加。为了早期发现变态，已经提出了检查方法。但是，现有方法均不能用来精确评估患者的感知。我们提出LineM作为一种新方法，可以基于涉及患者的互动线操作任务来精确测量变形者的畸变视图。为了探索LineM的潜力，提出了一个案例研究，该案例使用LineM的测量结果来可视化变形患者的扭曲观点。此外，还提出了使用LineM的结果来补偿个体变形症患者的畸变观点的新技术。考虑到老年人是变形症患者的绝大部分，因此已经实现了直观且用户友好的原型系统。LineM的有效性和实用性以及补偿方法通过涉及变态患者和老年参与者的定性和主观实验得以证明。