from a previous post: "Here is the OptiBoard link of how these professionals are talking about if they should release the PD to their patients or not.
http://www.optiboard.com/forums/showthread.php?t=37256"; digging around on that page i found a similar thread: http://www.optiboard.com/forums/showthread.php?s=d3b2aed1d1430d5bbca644ad98f4ed57&t=33398 this one about a retired guy deciding to order a bunch of glasses to check out the quality and some discussion of whether or not they should put up their own website for "consumers" (patients) to read reviews from the doctors. (highlight: "There's bound to be situations where the online places do a "decent" job. -1.00 ou with a 60 pd is kinda hard to make wrong. If you're going to do a review site, it will have to be honest, and at some point, there will be a good review. I don't think any ECP should even remotely reccomend online eyewear, and with a site like that, eventually you'll have to.") the interesting part is where they talk about progressive lenses ("PAL") and a missing measurement in the online order forms: segment height, which after some google-ing i've found is the height at which the line between the lenses starts on traditional bifocals. it's measured from the bottom of the lens of whatever particular frames are picked out, and so would be variable depending on the glasses, size of the lenses, where the frames are worn on the nose, and even the posture at which the person tends to hold their head when standing/ sitting/reading. (see http://www.2020mag.com/ViewContent/tabid/136/content_id/964/Default.aspx and http://www.optiboard.com/forums/showthread.php?t=12933; especially interesting is the tone of the first link: "Take a new PD every time a patient is in the dispensary. PD’s widen throughout life. It is another contact between you and the patient and it demonstrates care and precision.") now, with my prescription of -3.50 ou and 62 PD, i will certainly order glasses online without a second thought. but i do think that when you edit out the snarkiness, they actually have a point when it comes to bifocals/trifocals/progressives. why they aren't just explaining this so that "laypeople" can understand the need for a fitting instead of being all conspiratorial about it is beyond me, but if i needed bifocals i might think twice about ordering them. if only there was a middle ground where i could go to a local optometrist and not have to pay out the nose for glasses i basically only wear with my pajamas before/after my contacts are in.... --~--~---------~--~----~------------~-------~--~----~ Check us out at the oft-updated http://glassyeyes.blogspot.com! You received this message because you are subscribed to the Google Groups "GlassyEyes" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/glassyeyes?hl=en -~----------~----~----~----~------~----~------~--~---
