A drink made with ginger, lemon, and garlic may support general health as you age, but there’s no strong scientific evidence that it specifically prevents age-related eye diseases or dramatically improves vision.

Here’s what the research does suggest:

• Ginger contains antioxidant and anti-inflammatory compounds that may help reduce oxidative stress linked to aging. Some early studies even suggest ginger could improve blood flow and reduce eye fatigue. (PubMed)
• Garlic may support cardiovascular health and circulation, which indirectly benefits the eyes because the retina depends on healthy blood vessels. (Healthline)
• Lemon provides vitamin C, an antioxidant associated with eye tissue health and immune support. (Healthline)

However:

• There are no clinical trials showing that a ginger-lemon-garlic drink can prevent cataracts, glaucoma, or macular degeneration.
• Most claims online about these drinks being “miracle cures” or “eye rejuvenators” are exaggerated. (Healthline)

For long-term eye wellness, the strongest evidence still supports:

• controlling blood sugar and blood pressure,
• not smoking,
• wearing UV-protective sunglasses,
• regular eye exams,
• and eating a nutrient-rich diet with leafy greens, omega-3 fats, and colorful vegetables.

If you enjoy the drink, it can be a reasonable wellness habit in moderation. A common recipe is:

• warm water,
• fresh ginger,
• lemon juice,
• and a small amount of crushed garlic.

A few cautions:

• Garlic and ginger can irritate the stomach in some people.
• Lemon acidity may affect tooth enamel.
• Garlic and ginger can interact with blood-thinning medications.

So the drink may contribute to overall healthy aging, but it should be viewed as a supportive habit rather than a proven eye-health treatment.