- Instant coffee linked to a sevenfold increase in dry age-related macular degeneration (AMD).
- Study analyzed data from hundreds of thousands of individuals.
- Researchers advise those at risk to reduce or avoid instant coffee entirely.
A newly published study has revealed a concerning connection between instant coffee consumption and a significantly higher risk of age-related macular degeneration (AMD)—a leading cause of irreversible central vision loss in older adults.
The scientists conducted a comparative analysis involving different types of coffee and eye diseases like glaucoma and cataracts. While the risks were highest for instant coffee, the study also found potential associations between general coffee intake and other eye conditions.
Instant Wake-Up, Lifelong Risk: Study Links Instant Coffee to Severe Vision Loss
Age-related macular degeneration affects the macula, the retina’s central portion responsible for sharp, straight-ahead vision. Though it rarely causes total blindness, its impact on daily functioning can be profound. Dry AMD, the more common and slow-progressing type, currently has no cure—making prevention strategies crucial.
The study, which analyzed data from hundreds of thousands of participants, categorized coffee drinkers by type: instant, ground, and decaf. Researchers identified a disproportionately high incidence of dry AMD among instant coffee consumers, even after adjusting for lifestyle factors like smoking, age, and general diet.
This isn’t the first time coffee’s effect on vision has been explored, but previous studies yielded inconsistent results. However, the scale and specificity of this latest research add weight to the findings. It also found a correlation between coffee intake and an elevated risk of glaucoma and cataracts—conditions that further threaten vision health if unmanaged.
While coffee has its merits—such as improving focus, reducing certain cancer risks, and boosting mood—experts continue to emphasize moderation and mindful consumption. Filtered black coffee remains the healthiest option, whereas coffee mixed with creamers, sugars, or overly processed forms like instant may pose hidden risks over time.
Given the mounting evidence, reconsidering your coffee choice may be a small but meaningful step toward safeguarding your long-term eye health—especially as you age.
“An ounce of prevention is worth a pound of cure.” – Benjamin Franklin
