Researchers at the University of Alabama at Birmingham School of Optometry have secured two National Eye Institute grants totaling nearly $4 million to study how vision develops, deteriorates, and adapts. The projects, led by Lawrence Sincich, PhD, and Timothy Gawne, PhD, FAAO, focus on two areas that are increasingly central to clinical care: the global rise of myopia and the way the brain processes visual information following disease-related loss.
The funding includes a $2.1 million R01 grant awarded to Sincich for a four-year project investigating how cone photoreceptors are represented in the brain’s primary visual cortex, and a $1.9 million R01 grant awarded to Gawne to study environmental and therapeutic factors contributing to the myopia epidemic. Together, these projects reflect a broader shift in how vision is understood, not as a static function of the eye, but as a system shaped by both biological and environmental influences that directly impact myopia risk and progression.
How the Brain Processes Degraded Vision
Sincich’s research examines how neurons in the visual cortex respond when visual input is altered or degraded, a condition commonly experienced in retinal diseases such as glaucoma and macular degeneration. Using adaptive optics to precisely control visual stimuli, the study aims to understand how the brain interprets incomplete or damaged signals and how resilient these neural pathways are to disruption.
“By measuring how these neurons react to normal versus degraded stimuli, we will learn the degree to which they are resilient to retinal degeneration.”
— Lawrence Sincich, PhD, Professor, UAB School of Optometry
The work addresses a clinically important issue: patients often do not immediately recognize gaps in their visual field, even when structural damage has occurred. Understanding how the brain compensates for degraded input may improve how clinicians detect, monitor, and manage disease-related changes in vision. While this research is not directly focused on myopia, it contributes to a broader understanding of how visual systems respond to stress and change, which is also relevant when considering long-term myopia progression and adaptation.
Clinical Relevance for Vision Monitoring
For clinicians, this research highlights the importance of not relying solely on patient-reported symptoms. Changes in vision may occur gradually, and patients may adapt without noticing deficits. This is particularly important in conditions like myopia, where progression can occur silently over time, reinforcing the need for structured monitoring and early detection strategies.
Myopia Research Expands Beyond Correction
Gawne’s research focuses on the growing prevalence of myopia, which UAB reports affects more than 40 percent of adults in the United States and nearly one billion people worldwide. The scale of myopia positions it as a major public health concern within modern vision care, requiring approaches that go beyond simple correction.
“Myopia is not just a matter of needing glasses or contact lenses. The increased axial length of the eye remains a major risk factor for vision-threatening diseases.”
— Timothy Gawne, PhD, FAAO, Professor, UAB School of Optometry
The study is structured around three aims: evaluating how real-world visual environments influence eye growth, improving Repeated Low-level Red Light (RLRL) therapy, and developing objective recommendations for lighting spectra. Each of these areas reflects a shift toward understanding how environmental exposure contributes to myopia development and long-term vision outcomes.
Particular attention is being given to how artificial lighting may affect eye development. Because lighting conditions vary widely across environments, identifying which spectral compositions influence myopia progression could lead to more targeted prevention strategies. This is especially relevant in modern environments where artificial light and screen exposure are constant.
Environmental Factors and Myopia Progression
One of the more significant aspects of this research is its focus on real-world visual conditions. Rather than isolating variables in controlled environments, the study considers how everyday exposure to different lighting and visual stimuli may contribute to myopia. This approach reflects a broader shift toward understanding how lifestyle and environment influence long-term vision development.
The research also seeks to refine light-based therapies by balancing effectiveness with safety, moving away from high-intensity exposure toward approaches that are more practical for broader use. This balance is critical if therapies are to be adopted widely in managing myopia across different populations.
Linking Vision Processing and Myopia Risk
Although the two projects address different aspects of vision science, they are connected by a shared objective: improving how visual systems are understood across both development and disease. One examines how the brain processes degraded input, while the other investigates how environmental conditions shape myopia risk and progression.
Together, they reflect a more integrated approach to vision care, one that considers structural, neurological, and environmental factors simultaneously. For clinicians, this reinforces the importance of early detection, particularly in identifying early-stage myopia before progression accelerates.
Programs supporting early detection often rely on standardized tools used in schools and clinics, including Good-Lite vision screening tools, to ensure consistent identification of changes in vision and early indicators of myopia, enabling timely referral and intervention.
Source: Vision research tackles myopia epidemic and visual processing following disease-related vision loss
