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340 points jbornhorst | 1 comments | | HN request time: 0.215s | 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.

1. teslabox ◴[] No.43301479[source]
About four years ago I went to the Costco optometrist for a contact lens prescription. The O.D. said I was at the age where people start needing reading glasses, but I passed on those. It was the strongest prescription I'd ever had. After the appointment I put the contacts in the case and wore my weak glasses for the rest of the week. The day before the check appointment I put them back on my eyes - everything was crystal clear, but I couldn't read my phone.

The check appointment was with the practice's other O.D. I said the prescription would've been great for sniper shooting, but I just needed something to read the computer monitor. "You want an intermediate-range prescription." It was better, but still too strong. I used the curvature measurement to order my own prescription from one of the online contact stores. Three years later I upped my prescription by a quarter diopter.

Contact pro-tip: I use my contacts for 1.5 to 2x the rated time. Daily contacts can't be used for more than a day. 2 week contacts are good for at least 3 weeks. I've found my monthly contacts are good for at least 6 weeks. I've started using the hydrogen peroxide contact solutions: https://clearcaresolution.myalcon.com/

> even though your prescription is "correct"?

Most people have a range of prescriptions that they find acceptable. Some people's visual mechanism only 'likes' a specific prescription that might not correct them to 20/20. Developmental Optometry is a sub-specialty of optometry that considers more than acuity. This is a overview: https://www.theottoolbox.com/behavioral-optometrist-developm...

My contacts correct to 20/40 or 20/50, which are good enough for most tasks.