Resight — An Adaptive Typographic and Reading System for Central Vision Loss
Age-related macular degeneration (AMD) is the leading cause of blindness in developed countries and currently affects over 200 million people worldwide—a figure projected to reach 300 million by 2040 (Wong et al., 2014). Despite this high prevalence, most assistive reading technologies continue to prioritize magnification or contrast enhancements, offering limited support for the specific visual challenges posed by central vision loss. In particular, the potential of typography, despite its ubiquity, remains underutilized as an adaptive tool for addressing the specific demands of peripheral vision.
This thesis responds to this gap by proposing a hypothesis-driven reading system that integrates adaptive typography, kinetic text presentation, and eccentric viewing support. Grounded in interdisciplinary evidence from typographic research, vision science, low vision rehabilitation, and reading technology, the project repositions typography as an active contributor to accessible reading.
Two key outcomes were developed: Locus Serif, a variable typeface optimized for peripheral legibility through research-led modifications of multiple typographic parameters, including stroke weight (set between 22–33% of x-height), low stroke contrast, increased x-height, adjustable letter width (narrowing in the foveal region and widening toward the periphery), and scalable serif length (shortened progressively to maintain spatial balance with wider forms). These coordinated adjustments also influence the typeface’s visual rhythm, aiming to achieve an effective balance between heterogeneity and homogeneity—critical for supporting word segmentation and perceptual clarity in peripheral reading. The second component, ReSight, is a horizontal scrolling reading interface aligned to the user’s Preferred Retinal Locus (PRL), incorporating optional PRL calibration via a simplified Amsler grid, high-contrast display, fixation support, and adjustable scrolling controls.
Together, these components demonstrate how typographic design, when grounded in scientific research and implemented responsively, can enhance reading accessibility for individuals with central vision loss. The project offers a design-led framework that invites future empirical validation and potential integration into assistive reading technologies across platforms and scripts.
Meer lezen