See the evidence-based data forest through the systematic trees.

About

The Root Cause Analysis is a high-density acetate frame, which means it’s created from the good, expensive stuff. The time-tested aviator shape originates back to a date that the Internet is just not letting up that easily…but trust us when we say, “timeless.”

Features

  • Zeiss LightPro lenses offer glare elimination, device visibility and killer visual clarity—all in a lightweight, smudge-resistant package.
  • Enough light transmission to keep vision sharp / Full depth perception and fine visual detail / Glare elimination and UV protection without “over-darkening” / Digital screen visibility (no more tilting your phone at odd angles)
  • Premium, bio-based acetate frame with 3-barrel industrial hinges.

Fit

Vintage style, medium fit

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Narrow Medium Wide

An aviator frame shape ideal for oval, square, and heart faces.

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Overall rating: 4.75 / 5 from 516 reviews.

AI Generated Review Summary

Zeiss LightPro Sunglasses are praised for their high-quality, stylish frames and lenses. Customers appreciate the perfect fit, modern look, and durability of these aviator-shaped glasses. The lenses are noted for their clarity and tint, while the color is described as fabulous and high quality.

Summary topics

  • Product Quality (11%): Customers appreciated the great quality of the product, with multiple mentions of superb quality.
  • Product Fit (8%): Customers expressed satisfaction with the fit of the product, with many describing it as perfect or great.
  • Product Look (15%): Many customers pointed out that the glasses have a great modern look on the face.
  • Frame Style (11%): It was highlighted by customers that the frames are stylish and cool, yet sturdier and made of better materials than most readers.
  • Lens Quality (13%): It was noted by customers that the lenses are amazing, clear, and have a tint to them.

Review topics: ["size","fit","color","problem","feel","shape","look","materials","quality","weight","comfort","shipping","style","design","shade","pair","customer service","light","fun","glasses","pattern","construction","readers","frames","lenses","sunglasses","caddis","tint","progressives","compliments"].

Review highlights

  • "Love the glasses, its style, and colors." — Gabi H.
  • "Perfect fit, style and quality." — Simon
  • "Amazing progressive lenses and I look so cool!" — Melissa P.

Reviews

In Love With Caddis’ Quality!

"This is my second pair of Caddis in two months. I love the quality. The first pair of these RCA had the wrong prescription. Customer service was great to work with and corrected the problem. Mistakes happen, but great companies correct them. I’m a customer for life!"

— Suzann M. (5/5)

OBSESSED

"I have been buying glasses from my optometrist because they said it’s important to get the prescription in the right place and that ordering online is not a good choice. I was unhappy with their selection and expense so I took a chance and I’m SO glad I did!!!"

— Magdalen S. (5/5)

Fits great out of the box

"My third Caddis pair, and as before, the prescription and fit are just right. Though I wish I could have gotten my beloved Mr Cartoon style in blue, this aviator style frame works well too. A more muted blue/green color, but looks good."

— Polly P. (5/5)

Addicted to Caddis

"My second pair of Root analysis and my 10 th or 11th pair purchased. Love the quality the lens clarity and the fit. I’ve been in the optical industry for 30 years and can’t find anything better than a Caddis for an “over the counter “ reader. Well done Caddis in all categories !"

— spryng b. (5/5)

How you look on the outside can match how you feel on the inside

"At a certain age, readers make your life easier. They do. But you don’t necessarily want to look that certain age. Enter Caddis RCA. When the “cool” kids at work compliment my glasses, and I don’t have to take them off to see distance because I got the progressives, I don’t feel my age. So I’m ordering the same style in sunglasses too — because now my outside finally matches how I feel on the inside. Get ready for the compliments."

— jenn h. (5/5)

Great looking sunglasses

"I found myself using these more as sunglasses than as readers but obviously not ideal for diving etc. I lost them already and will order another pair."

— ANTHONY P. (5/5)

Great Reading Glasses

"Love these glasses a lot ~ I lost my first pair so had to order a second pair no brainer !!"

— sarah O. (5/5)

Fantastic.

"I like these a lot. Great quality. Nice to wear. Will probably buy another pair in another Color when I can afford to do so."

— Douglas S. (5/5)

Love absolutely everything about this pair of glasses

"The color is spectacular, the shape is cool, but what I appreciate the most is the weight. They are ultra-light. I owned another pair of Caddis and they were heavy and left a mark on my nose bridge. These do not."

— Carla A. (5/5)

Aging Awesome with my RCA

"I am a big fan of the Caddis D-28 frames! But for sunglasses I prefer the RCA frames so I buy the 0 Mag readers and have my optometrist add my progressive prescription. This Donkey color is a cool shade of grey!"

— Ryan F. (5/5)

Q&A