Blinking decreases and eye strain increases during one hour of smartphone use, with dynamic screen changes from social media reels creating the highest visual load.
In a long-term cohort study, researchers found that specific retinal changes—thinner photoreceptor layers and thicker retinal pigment epithelium—were linked to a higher risk of developing amyotrophic lateral sclerosis, suggesting potential noninvasive biomarkers for early detection.
Estradiol increases susceptibility to retinal degeneration in female mice with retinitis pigmentosa, highlighting hormone-specific effects on neurodegenerative disease pathways.