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Ask HN: Do your eyes bug you even though your prescription is "correct"?

340 points jbornhorst | 1 comments | 07 Mar 25 17:09 UTC | HN request time: 0.207s | source

I’m digging into an idea around eyeglasses, screen-time, and vision discomfort. If you wear prescription glasses but still get headaches, eye strain, or blurry vision after long screen days, I’d love to chat briefly (20–30 min).

Pure research, zero selling.

Interested? Drop a comment below or email me directly at jbornhorst [at] gmail.com. I’ll coordinate a convenient time to talk.

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winrid ◴[07 Mar 25 18:21 UTC] No.43292657[source]▶
I had this issue until I got a 2nd prescription by a different provider and new lenses. Sometimes lense material etc also matters. Bigger PITA than I thought getting glasses was going to be.

Nearsighted, left eye worse.

replies(1): >>43292790 #
1. amluto ◴[07 Mar 25 18:31 UTC] No.43292790[source]▶
Lens material absolutely matters. Glasses suffer from chromatic aberration, and this causes visible rainbows away from the center of the lens. A material with a higher Abbe number will perform better.

For common lens materials, polycarbonate has a low Abbe number, and Trivex is a widely available alternative with a higher Abbe number. You can find tables online for common lens materials.