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How I clean my glasses

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Re: How I clean my glasses

#321

Post by Fnoord »

fernirello wrote: post #284
glitchc wrote: post #262

Earlier quoted context omitted.

Glass lenses are only good for spherical prescriptions. If you have astigmatism, you need an aspherical lens, which cannot be shaped in glass.

I've owned several pairs of aspherical lenses made of glass, ground by competent yet hardly exceptional shops. Only in the U.S. I found people uninterested in selling me glass lenses--exaggerated mimicry, "but they'll be so heavy!", etc.

> "but they'll be so heavy!"

Yeah, they are. If you only have say -2 its no big deal. I have -4 and with heavy glasses (I used to wear such) I get pain in top of my nose rather quickly.

Re: How I clean my glasses

#322

Post by Fnoord »

mixmastamyk wrote: post #247
twawaaay wrote: post #225

Earlier quoted context omitted.

Do you get scratch resistant frames, too? The scratches on the glass do not have to be visible. The surface just gets a tiny bit matte, reducing the contrast and also making cleaning a bit bigger problem. As to the frames, except for the unavoidable wear and tear in places where it can't be avoided, my current main daily driver Tom Ford acetate glasses look as shiny as on the day I got them, 3 years ago. My friend ha…

No, but they are titanium and don't scratch. Well, not with towel anyway.

Titanium frame is my latest love iteration of my glasses. It makes them more light. I've found that's what I find annoying about glasses, the weight on my head. Not the peripheral. In fact, I've tried lenses various times, and never have been able to go with it. Too much discomfort.

Re: How I clean my glasses

#323

Post by kroltan »

camtarn wrote: post #193
pen2l wrote: post #168

Earlier quoted context omitted.

I've been wearing glasses for about 20 years. I've gotten a new pair pretty much every year. Every single time I've gotten a new pair, I was given the offer for coatings as addons, never once did a shop in the midwest or east coast just tell me "they come with coatings". Are you in the US?

Nope, UK. And admittedly this was just a single optician, so maybe things are different elsewhere.

Try another one, I think they're hard-selling you.

Re: How I clean my glasses

#324

Post by Tryk »

joshvm wrote: post #199

> The ultrasonic cleaner and distilled water are more expensive and have greater ongoing costs Distilled water should be pretty cheap. You can sometimes buy it as "ironing" water. I use it for my watercooled PCs (plus coolant concentrate), in Switzerland it's about 1 CHF a litre from the supermarkets.

Is there a reason to buy distilled water? Why don't you just make it yourself (e.g. https://www.wikihow.com/Make-Distilled-Water)

Re: How I clean my glasses

#325

Post by pizza234 »

aidenn0 wrote: post #179
pizza234 wrote: post #84

Earlier quoted context omitted.

Ultrasonic cleaners, with a bit of dishes soap in the water, are the most efficient/effective way (I uses to clean them with water and soap as well, in the past). They are simple devices that lightly shake objects very quickly, in water. They work well with dirt that is soft (e.g. grease), and therefore not only for glasses, but also for teeth aligners and jewelry/small objects. Some grease is still sticky, but gener…

What uncoated lenses do you have? Polycarbonate lenses usually have an anti-scratch coating, and most lenses have an AR coating as well.

Correct objection :)

I don't know the technical distinction, but there is a noticeable distinction in prcatice. I guess that "cheap coating" is made by gluing a film; I see this type of coating very often in budget or even not-so-budget sports (sun)glasses.

Cleaning this type of glasses in an unltrasonic cleaner will cause bubbles to form between the film and the lens.

Re: How I clean my glasses

#326

Post by twistedanimator »

cornstalks wrote: post #24

The best method I’ve found so far: 1. Get your glasses wet with warm water. 2. Apply dish soap to both lenses. 3. Gently rub the soapy water over the lenses. For some stubborn things (like sunscreen) in the edges I sometimes gently use a Q-tip. 4. Rinse under warm water. Gently rub with your fingers to agitate the soapy water and help rinse it off. 5. (This is the important step) Adjust the faucet’s flow to a low lam…

I just wanted to thank you for this advice. I just used your laminar flow idea and didn't even need to use my microfiber cloth at all, the lenses were totally clean!

Here's what I did: 1. First pass of laminar flow water from the faucet to remove any large debris. 2. Two sprays of lens cleaner on each side of each lens. 3. Rinse lenses with laminar flow water making sure to leave no droplets behind.

Thank you for changing my algorithm forever.

Re: How I clean my glasses

#327

Post by Fnoord »

Fnoord wrote: post #322
mixmastamyk wrote: post #247

Earlier quoted context omitted.

No, but they are titanium and don't scratch. Well, not with towel anyway.

Titanium frame is my latest love iteration of my glasses. It makes them more light. I've found that's what I find annoying about glasses, the weight on my head. Not the peripheral. In fact, I've tried lenses various times, and never have been able to go with it. Too much discomfort.

I would like to add: the weight on my nose is more discomforting than grease on my glasses. I sometimes clean my glasses and I'm afterwards like wow, that was dirty. But did it really bother me? Not really. I rather do it for other people, cause it makes me look better, but such isn't a high prio for me (already 'married with children').

Re: How I clean my glasses

#328

Post by Groxx »

sgt wrote: post #315
Groxx wrote: post #295

Earlier quoted context omitted.

Yeah, I've stepped down from the highest index I've used due to the aberrations. Material and grinding techniques have improved since then in general, but it was quite distracting - shift my head a degree or two and bam, rainbow, and further to the edges of the lens it'd be 3+ distinct colored images of every light source. It was kinda neat to be a walking spectroscope, and see what different light sources produced.…

It's strange. I have a high index but ... seeing rainbows? I can't relate to this. Why is that? For me, only blue LED'e shift slightly,

It's worse with stronger prescriptions, if that explains anything. And it has in general gotten a lot better in the past 10-20 years or so, so if you're looking through a current pair it may be quite different.

Currently, if I look at any sharp contrast edge in daylight and turn my head a few degrees, it'll be lightly fringed by either blue or orange. In the dark with a three-color RGB LED projecting "white" (rather than a broad-spectrum white source) I can get fairly clearly separated dots of different colors closer to the edges of my lens.

Re: How I clean my glasses

#329

Post by dang »

teddyh wrote: post #172
dang wrote: post #117

Earlier quoted context omitted.

I'm happy to admit mistakes (and correct them!) but this is inaccurate. We don't edit titles to put our own personal spin on a topic, which is what the word editorializing means. We look closely at the article itself to find what it is actually saying. If we do replace a title, we replace it with representative language from the article itself wherever possible. This has been the case for a long time: https://hn.algo…

How about the second example? The linked article is decidedly not a technical specification or even a discussion about any details of OpenStreetMap's Data Model. The article lacks any snippets of code or map data. It is quite clearly a defense of the simplicity of OpenStreetMap's data model (using analogies and anecdotes) as reflected by the article’s title. How, then, could one possibly justify the title change?

Sorry for the delay in replying. I think you have a stronger case about that example. Most likely we changed the title to make it less baity—"In Defense of" doesn't really add much information except "Fight", and that's a bad way to prime a thread.

Having now read more of the article, though, I agree with you that the title edit changed the focus in a misleading way. I've changed it back now. Maybe "The simplicity of OpenStreetMap's data model", or something like that, might have been an ok compromise, but it's too late to matter.

Moderation is guesswork. Inevitably, we guess wrong sometimes. The best thing is for users to tell us when we've got something wrong, because then we can correct it. In the future, if you would let us know at hn@ycombinator.com instead of posting in the thread, where we're unlikely to see it, we can correct things while the thread is still live. We do that all the time (many times a day), but we can't correct mistakes we don't know about!

Re: How I clean my glasses

#330

Post by teddyh »

dang wrote: post #329
teddyh wrote: post #172

Earlier quoted context omitted.

How about the second example? The linked article is decidedly not a technical specification or even a discussion about any details of OpenStreetMap's Data Model. The article lacks any snippets of code or map data. It is quite clearly a defense of the simplicity of OpenStreetMap's data model (using analogies and anecdotes) as reflected by the article’s title. How, then, could one possibly justify the title change?

Sorry for the delay in replying. I think you have a stronger case about that example. Most likely we changed the title to make it less baity—"In Defense of" doesn't really add much information except "Fight", and that's a bad way to prime a thread. Having now read more of the article, though, I agree with you that the title edit changed the focus in a misleading way. I've changed it back now. Maybe "The simplicity of…

> Most likely we changed the title to make it less baity—"In Defense of" doesn't really add much information except "Fight", and that's a bad way to prime a thread.

Such words also signals value, since they signal that someone has something significant to contribute to the conversation. For an extensive discussion about how such words signal value, see Larry McEnerney’s lecture The Craft of Writing Effectively:

https://www.youtube.com/watch?v=vtIzMaLkCaM

A more value-signalling title with less “Fight” might have been “The benefits of simplicity in OpenStreetMap's data model”.

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