3 ms·

That limit is efficient for measuring and selling glasses. As a life-long user, glasses with an error of 0.5 are unacceptable for me. That's the amount of chan

That limit is efficient for measuring and selling glasses. As a life-long user, glasses with an error of 0.5 are unacceptable for me. That's the amount of change over years when it is time to get new ones. Not all deviations are measurement errors. There are potential variable conditions of the eye (e.g., spasm of accommodation and sugar level). An online solution that can consider them properly is definitively worth a patent.

jtwaleson 3y ago
Agreed on all points. Also the acceptability varies a lot. By your wording it sounds like you are quite picky about glasses and would A) not go to a random optician and B) return the glasses if you are not satisfied. I’m the same ;) There are many people who are not that picky.
- qaid 3y ago
  A) How can I find a proper optician? B) how do you determine whether or not you’re satisfied? Throughout 30 years of wearing glasses, I’ve questioned many times whether the glasses are right for me. I may resist for a month or two but I always end up “adapting” to the new pair. When is this acceptable and how do I know when to speak up?
  - jtwaleson 3y ago
    First of: adapting to new glasses is normal and can take a couple of weeks. For A: I don’t really know, but use the ones that gives you B. Depending on the country, high end / non-chain stores can have better customer service and listen to your wishes, and answer your questions. There’s also smoke and mirrors and upselling so see if you trust the person. B: for simple distance vision (if you are under 40) do a quick pin hole test and look at tree leaves or something. If your vision quality increases a lot you should not be satisfied. Same if you notice eye strain when looking at things in the distance. Now for multifocal glasses it really depends on your use case (reading, computer work, etc), and it’s very difficult to get a really good correction. There’s no silver bullet. Find an optometrist or optician that you trust, so back to A ;)

jtwaleson 3y ago

Agreed on all points. Also the acceptability varies a lot. By your wording it sounds like you are quite picky about glasses and would A) not go to a random optician and B) return the glasses if you are not satisfied. I’m the same ;) There are many people who are not that picky.

qaid 3y ago
A) How can I find a proper optician? B) how do you determine whether or not you’re satisfied? Throughout 30 years of wearing glasses, I’ve questioned many times whether the glasses are right for me. I may resist for a month or two but I always end up “adapting” to the new pair. When is this acceptable and how do I know when to speak up?
- jtwaleson 3y ago
  First of: adapting to new glasses is normal and can take a couple of weeks. For A: I don’t really know, but use the ones that gives you B. Depending on the country, high end / non-chain stores can have better customer service and listen to your wishes, and answer your questions. There’s also smoke and mirrors and upselling so see if you trust the person. B: for simple distance vision (if you are under 40) do a quick pin hole test and look at tree leaves or something. If your vision quality increases a lot you should not be satisfied. Same if you notice eye strain when looking at things in the distance. Now for multifocal glasses it really depends on your use case (reading, computer work, etc), and it’s very difficult to get a really good correction. There’s no silver bullet. Find an optometrist or optician that you trust, so back to A ;)