Slow cataract progression

What this outcome means

Cataract progression is the gradual clouding of the eye's lens over years, slowly fogging and dimming what you see. On DoseRank it maps to a defined health outcome built from human studies on lens opacity grading, visual acuity changes, and rate of clouding – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Aging eyesOlder adults noticing colors dull and vision slowly hazing over.

Early lens changesPeople with first signs of clouding caught at an eye exam.

High sun exposureThose with years of bright outdoor light and little eye protection.

Stack buildersAlready taking supplements such as Zeaxanthin and want the dose right.

Evidence level

78Moderate-strong

Zeaxanthin – has moderate public evidence for this outcome. This usually means there are smaller or mechanistic studies, but not randomized human trials. A DoseFit Score of 100 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best available ingredients

Zeaxanthin is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 100

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: Above range: Zeaxanthin 200 mg vs 2-6 mg.

Processed

2.6k

Available

2.6k

Ingredients

Brands

290

Coverage

100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.

CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better

ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better

EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better

ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better

TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better

PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

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Questions

Frequently asked

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.

Slow cataract progression

What this outcome means

Who it's for

Aging eyesOlder adults noticing colors dull and vision slowly hazing over.

Early lens changesPeople with first signs of clouding caught at an eye exam.

High sun exposureThose with years of bright outdoor light and little eye protection.

Stack buildersAlready taking supplements such as Zeaxanthin and want the dose right.

Evidence level

78Moderate-strong

Best available ingredients

Zeaxanthin is the best supported ingredient signal for this outcome.

Dose matchedDoseFit 100

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: Above range: Zeaxanthin 200 mg vs 2-6 mg.

Processed

2.6k

Available

2.6k

Ingredients

Brands

290

Coverage

100%

Relevant ingredients

Which ingredient types matter for cataract progressionOpen to see which ingredient types matter for cataract progression

362 products across 2 ingredient types — open to filter the ranking.

Use types to filter ranked products

Antioxidants & Bioactive Compounds

353 products

Molecules that neutralize free radicals and tune cell signaling. Helpful in balance; mega-doses can blunt the body's own adaptive defenses.

Typical:

Vitamins

9 products

Essential micronutrients the body can't make in sufficient amounts. Fat-soluble ones (A, D, E, K) store up; water-soluble ones need regular topping-up.

Typical:

Top decision cards

Best products for cataract progression

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for cataract progression

Swanson Vitamins, Herbal Urinary Care, 60 Capsules

Swanson Vitamins$0.07 / serving4.7 · 807Available now

Why this ranks here

Evidence fitZeaxanthin has moderate human evidence for this outcome.
Dose fitZeaxanthin at 200 mg is higher than the studied 2-6 mg window.
Price / serving$0.07 per serving — low price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustSolid trust signals from buyer ratings, with room to grow.

Trade-offs

Trust signals sit below the other picksPopularity trails the other picks here

The numbers

100

200 mgAbove rangehigher than the studied 2-6 mg window

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products