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cataract sunglasses

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A concentrated shelf (top 5 take 80% of clicks) — this niche doesn't clear our bar today.

Market size 26Growth 58Conversion 41Competition 17Returns 31Price range 75Avg price 94Brand share 24Review moat 42Quality gap 58

Avg price

Great$22.60

avg listing price — sweet spot $15–$100

Price range

Great$7.98–$36.00

cheapest to priciest tracked listing — scored on the share inside $15–$100

Growth

Good+32.9%

90-day search growth — must beat 0% to launch

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Review moat

Okay2,255

avg incumbent reviews — the moat a new listing must climb

Conversion

Okay3.3%

search→purchase rate — share of searches ending in a sale

Returns

Okay5.2%

return rate — above 6% kills the launch gate

Market size

Okay$107K

$107K/yr · 144K searches

Brand share

Bad91%

top-5 brand share — brand-locked demand

Competition

Bad80%

top-5 click share — a locked-up shelf

Competition

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

12

Top-5 brand share

91%

Open market

7%

  • Goiteia37%
  • Wise Eyewear35%
  • OPTEGO7%
  • Yogo Vision6%
  • Bloomoak5%
  • iSafety3%
  • Open — no brand owns it (3 brands, 7%)

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$11K20%$21K30%$32K40%$43K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 13 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +32.9% search growth over the last 90 days.
4K3KSpike '25Spike '26SepDecMarJunAugNovMarMay

Peak months: May, Jun · busiest ÷ quietest = 1.9×

Reviews

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall33%

“Fit your face comfortably”

Value For Money15%

“Great value”

Quality-Overall12%

“The glasses are nice and seem well-made”

Comfort-Overall7%

“Very comfortable”

Advertised Vs Actual Product5%

“Ive got what I want”

Shape/Style4%

“I really like the style”

Color3%

“Nice colors”

Weight Light2%

“Lightweight comfortable”

Strength2%

“Solid sunglasses that arent flimsy”

Brightness/Shine/Glow2%

“Protection from bright light”

What buyers complain about

Size-Overall35%

“Very large”

Durability9%

“didn't last”

Advertised Vs Actual Product8%

“After all that is available about that organization through an abundance of news and information organizations, advertising in support of them is inexcusable”

Color8%

“Dark”

Quality-Overall5%

“Not well made”

Value For Money4%

“NOT WORTH THE PRICE”

Comfort-Overall4%

“Uncomfortable”

Strength4%

“A little flimsy”

Functionality-Overall2%

“didnt work”

Pain Relief-Overall2%

“does hurt a little when wore for long time”

Top return reasons

Size-Overall72%
Advertised Vs Actual Product6%
Shape/Style3%
Color3%
Quality-Overall2%
Comfort-Overall2%
Width2%
Value For Money2%
Transparency2%
Functionality-Overall1%