I love responses that cover so many nooks and crannies. Thanks very much for pitching in with such great answers. I've got lots to chew on and am so looking forward to buying some glasses. I'm almost there.
I appreciate the care with which you make your contributions here. Cheers! Ian On Oct 30, 11:26 am, Chuck Knight <[email protected]> wrote: > First off, congratulations! You've read your prescription like an old > pro. Your assumptions appear to be exactly right, and yes the doctor > just left off the decimal points. > > Now, let's talk about your other two points. > > Progressives. > Most decisions represent a tradeoff. Progressives are no exception. > By blending the two prescriptions, you get a gradual transition from > far to near. BUT, the area in which any specific distance is in > perfect focus will be fairly small...often we hear complaints about > the "narrow corridor." This creates any number of minor issues, like > having to move your head back and forth while reading, because of the > tiny "close up" area. > > Most people choose progressives because of appearance...essentially, > vanity. Be aware that they do represent a compromise solution. > > Functionally, the bigger the area (lens) the better it is for you. > Consequently, a lot of people choose really big progressive lenses > which can provide a more gradual blending, and larger areas for > distance, mid, and reading. A lot of people also choose conventional > bifocals, because the close up lens is WAY bigger, and it makes them > more comfortable. > > Separate glasses are another approach...just get pairs for both/all > distances, if this is most comfortable for you. You'll even find > discussions on this forum, among bifocal wearers, involving a third > prescription...computer distance. > > Photochromics vs sunglasses. > The photochromic lenses tend to not get quite so dark as custom tinted > sunglasses. The usual rule of thumb is about 60% darkness for > photochromics, and 80% darkness for sunglasses. This may be dark > enough for you. Photochromics also tend not to come in the same wide > range of colors at most of the online retailers...but unless you are > looking for "rose colored glasses" this will likely not be an issue. > > No one would argue the convenience of photochromics. You put on one > pair of glasses, and they work for most situations. The tradeoff is > that they take a little time to transition between light-dark-light, > so there's a brief period when you will be "blinded." > > The other consideration is aesthetic. In my own case, I prefer my > clear glasses to be small and unobtrusive, but I prefer my sunglasses > to be big and bold. I choose to carry 2 pairs. Many *MANY* others > choose photochromics. It really comes down to making a choice...and > thanks to this group, it can be a well informed choice. > > The nicest thing about buying glasses online, is that a "wrong" > decision isn't catastrophic. When glasses are $400 a pair, most of us > *have* to get it perfect, because we're stuck with our decision. When > they cost $10 a pair, we're much more willing to experiment. > > Welcome to the group. > > -- Chuck Knight > > On Thu, Oct 29, 2009 at 4:15 PM, clocker <[email protected]> wrote: > > > Firstly, thanks to all. I've learnt a lot about glasses from this > > group already. I've never had glasses before and I suppose I likely > > don't really need them yet, but I'm tired of my night vision depth of > > field being miserable while driving. I definitely need the reading > > glasses portion of the prescription. > > > I have a few questions before I go ahead and order up my first pair of > > glasses. > > > Never having had glasses before doesn't help the process of buying on > > line. I know this prescription is not a very strong one, but I don't > > know enough to tell where the decimal points have been left out of the > > numbers below. I'd appreciate a hand with that. > > > OD - RE SPH. -025 CYL. -025 AXIS 80 > > OS - LE SPH. -025 CYL. -025 AXIS 85 > > > ADD > > OD +225 > > OS +225 > > > The PD numbers were written on their card as being: > > 35/64 > > 32/67 > > > I measured my PD and my right eye is 35mm from the middle of my nose > > bridge and my left eye is 32mm from centre. > > > I read those numbers as: > > OD - 35 > > OS - 32 > > Distance - 67 > > Near - 64 > > > Is that about how others read them too? > > > I need a bifocal lens and look forward to having progressive lenses. > > > Am I better off having two pair of glasses, one as sunglasses and the > > other clear or is it conventional wisdom that the photochromic is the > > way to go? > > > Cheers! Ian --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
