Re: [MBZ] Glasses WUZ:Top Tier Diesel
That's Fronkensteen, not Frankenstein. Anyway, I found a pretty good explanation of Abbe Value and its practical effects here. In short, if you're stronger than +4 or -6 dipopters, PC is going to look like shit when you move your eyes to look out the edge of your lens, but straight ahead is perfectly fine. https://www.2020mag.com/article/does-material-abbe-value-influence-your-patients-vision > On September 7, 2019 at 9:59 AM Dan Penoff via Mercedes > wrote: > > > abbe normal? > > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Glasses WUZ:Top Tier Diesel
abbe normal? -D > On Sep 7, 2019, at 9:52 AM, Mitch Haley via Mercedes > wrote: > > >> On September 7, 2019 at 9:14 AM Curley McLain via Mercedes >> wrote: >> >> >> I go to a great ophthalmologist. They have a store in house, but don't >> make you use it. he just prints out the Rx and I can get it filled >> anywhere. I've been buying the "industrial quality eye protection" >> with titanium frames from wally land. (Safety glasses, polycarbonate) > > Polycarb is strong, has a halfway decent refractive index, blocks UV, and is > cheap. > But it likes to warp a bit in the mold and the chromatic aberrations are huge > so it's not the right stuff if you value visual accuracy. The stronger the > prescription, the worse it gets with different colors focusing differently. > Good old CR-39 plastic and crown glass have better focus, (abbe value 58-59) > but their low refractive indexes make for thick and heavy lenses. > > Trivex has a better abbe value (43), but costs more and has a lower > refractive index. > 1.66 and 1.74 high index plastics have an abbe value of 32, scarcely better > than PC's 30. > > https://www.allentownoptical.com/abbe-value-interpretation/ > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Glasses WUZ:Top Tier Diesel
> On September 7, 2019 at 9:14 AM Curley McLain via Mercedes > wrote: > > > I go to a great ophthalmologist. They have a store in house, but don't > make you use it. he just prints out the Rx and I can get it filled > anywhere. I've been buying the "industrial quality eye protection" > with titanium frames from wally land. (Safety glasses, polycarbonate) Polycarb is strong, has a halfway decent refractive index, blocks UV, and is cheap. But it likes to warp a bit in the mold and the chromatic aberrations are huge so it's not the right stuff if you value visual accuracy. The stronger the prescription, the worse it gets with different colors focusing differently. Good old CR-39 plastic and crown glass have better focus, (abbe value 58-59) but their low refractive indexes make for thick and heavy lenses. Trivex has a better abbe value (43), but costs more and has a lower refractive index. 1.66 and 1.74 high index plastics have an abbe value of 32, scarcely better than PC's 30. https://www.allentownoptical.com/abbe-value-interpretation/ ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Glasses WUZ:Top Tier Diesel
Mine is a couple of blocks away from my office downtown. A quick in and out for my annual exam, and I leave with my script. Only thing I don’t get is my PD, but Costco does that and provides it to me when I get glasses there. And it’s not like it’s something that will change… I had a neighbor who is an optometrist. She had a very active practice in a high end neighborhood nearby. Everyone we knew went to her. When you came out of the exam room, you got dumped into what I called the “showroom” where a couple of hotties would immediately try and sell you on designer frames with ten different coatings, etc, etc. I always excused myself using the reason that I had to get back to work and would return at a later time. I got my script, but no PD. One of my neighbor buddies’ wife went there and left with an $800 bill for a pair of glasses. He was livid. He swore revenge. The optometrist and her dirtbag husband (another story for another day) used to have neighborhood parties al the time, typically quite lavish affairs such as “casino nights”, for example. There would almost always be a large spread of food with a big pile of boiled shrimp being part of it. My neighbor buddy would go, pull up a chair to the serving table in front of the shrimp, and just plow through them. That was how he was getting his $800 dollars back. He did this every time they had a party to the point where it became a regular thing. And the optometrist never knew why - but everyone else did. -D > On Sep 7, 2019, at 9:14 AM, Curley McLain via Mercedes > wrote: > > I go to a great ophthalmologist. They have a store in house, but don't make > you use it. he just prints out the Rx and I can get it filled anywhere. > I've been buying the "industrial quality eye protection" with titanium frames > from wally land. (Safety glasses, polycarbonate) > > Mitch Haley via Mercedes wrote on 9/6/19 6:48 PM: >> That's kind of what I figured. You want to order glasses, they're probably >> going to want to file all the info under your member number. >> $150ish for 1.67 index digital lenses is a great price, but I just learned >> the market price is down around $300-500 these days. I still thought of them >> as $1000 lenses from when they came out about ten years ago. Wish I knew a >> good optician who doesn't want a big markup and has the equipment to measure >> my eyes for high def lenses. My old guy wasn't equipped for that, and he >> shut down the store suddenly instead of selling it. His prices were about >> half of RX Optical etc. Now the only opticians I can find want too much >> money for everything. >> My ophthalmologist doesn't dispense, so I get my insurance paid glasses from >> RX and buy extras from the Chinese internet houses. >> Mitch. >> >> > > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] Glasses WUZ:Top Tier Diesel
I go to a great ophthalmologist. They have a store in house, but don't make you use it. he just prints out the Rx and I can get it filled anywhere. I've been buying the "industrial quality eye protection" with titanium frames from wally land. (Safety glasses, polycarbonate) Mitch Haley via Mercedes wrote on 9/6/19 6:48 PM: That's kind of what I figured. You want to order glasses, they're probably going to want to file all the info under your member number. $150ish for 1.67 index digital lenses is a great price, but I just learned the market price is down around $300-500 these days. I still thought of them as $1000 lenses from when they came out about ten years ago. Wish I knew a good optician who doesn't want a big markup and has the equipment to measure my eyes for high def lenses. My old guy wasn't equipped for that, and he shut down the store suddenly instead of selling it. His prices were about half of RX Optical etc. Now the only opticians I can find want too much money for everything. My ophthalmologist doesn't dispense, so I get my insurance paid glasses from RX and buy extras from the Chinese internet houses. Mitch. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
