Reconciling print-size and display-size constraints on reading.

ABSTRACT: Two fundamental constraints limit the number of characters in text that can be displayed at one time-print size and display size. These dual constraints conflict in two important situations-when people with normal vision read text on small digital displays, and when people with low vision read magnified text. Here, we describe a unified framework for evaluating the joint impact of these constraints on reading performance. We measured reading speed as a function of print size for three digital formats (laptop, tablet, and cellphone) for 30 normally sighted and 10 low-vision participants. Our results showed that a minimum number of characters per line is required to achieve a criterion of 80% of maximum reading speed: 13 characters for normally sighted and eight characters for low-vision rea

SUBMITTER: Atilgan N 

PROVIDER: S-EPMC7720185 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature