Taking care of your vision requires an approach tailored to your age group. Before age 40, the priority is protection against blue light and the prevention of progressive myopia. Between ages 40 and 55, the lens and retina accumulate photo-oxidative stress—supplementation with lutein, zeaxanthin, and antioxidants becomes important. After age 55, preventing AMD (Léro Pervulane, Pileje Visiobiane, Suvéal Duo) and cataracts becomes a priority, with the AREDS2 formula serving as the clinical standard. For all ages, regular eye exams remain the indispensable foundation of eye health.
Difrarel 100 mg is among the most commonly prescribed anthocyanin-based medications in France for functional visual disorders—retinal capillary fragility, light adaptation disorders, and mild progressive myopia. Its anthocyanins (standardized blueberry extract) strengthen retinal capillaries, accelerate rhodopsin regeneration, and inhibit enzymes that break down the vascular matrix. The difference from dietary supplements (Superdiet Organic Blueberry, Naturactive Blueberry) lies in the pharmaceutical standardization, which guarantees the content of active anthocyanins—relevant for documented functional disorders.
Vitamin A remains the fundamental nutrient for scotopic vision—severe deficiency causes xerophthalmia and irreversible night blindness. In developed countries, subclinical deficiency (common in restrictive diets) can subtly impair night vision and corneal sensitivity. Cod liver oil (Möllers) combines natural vitamin A (retinol), vitamin D3, and DHA in a naturally bioavailable lipid-based formulation—a formula that simultaneously supports vision, immunity, and bone health. Important precaution: Do not exceed 10,000 IU/day of vitamin A for pregnant women due to the teratogenic risk.
Lycopene (5–15 mg/day) is the most concentrated lipophilic antioxidant in the human lens—it neutralizes singlet oxygen radicals from photooxidation that damage the lens. Its intake significantly reduces the risk of nuclear cataracts in prospective studies. Coenzyme Q10 (ubiquinol, 100–200 mg/day) supports the mitochondrial respiratory chain of photoreceptors and the retinal pigment epithelium—which have some of the highest mitochondrial densities in the body.
Even mild iron-deficiency anemia can cause a decrease in contrast sensitivity and phosphenes—since iron is essential for retinal oxygen supply via erythrocyte hemoglobin. Copper is a cofactor for ocular superoxide dismutase (SOD)—the primary antioxidant enzyme of the retina and optic nerve—and for ceruloplasmin, which is involved in transporting iron to ocular structures. The AREDS2 formula includes copper (2 mg/day) precisely for this reason, in combination with zinc, which can inhibit copper absorption at high doses.
Four profiles guide the choice. Impaired night vision: standardized blueberry extract 160–320 mg/day (Naturactive Blueberry, Superdiet Organic Blueberry) or Difrarel 100 mg by prescription. AMD prevention after age 50: complete AREDS2 formula (Léro Pervulane, Pileje Visiobiane, Suvéal Duo). Lens protection: lycopene + vitamin C + vitamin E. Eye strain and screen use: Ophta'Plex (blueberry + blackcurrant + B vitamins) or Ergyoptil Nutergia. In all cases, these supplements are intended for prevention and support—they do not treat an established eye condition and are not a substitute for regular eye care.
