> With what you have told us about your vision, it looks like your > prescription for progressives should be something like right and left > sphere numbers of 0.00 (no distance spherical power), the cylinder > values you have stated, and adds of about +2.5 and +3.0 for close > distances. Your computer screen with these glasses would then be > sharp when viewed somewhere between the top and the bottom of your > lenses.
Thank you for clearing that up for me. If I would have ordered with the numbers I had come up with in the beginning it would have been just a mess. >You might need just a > little sphere for distance vision to go along with your cylinder > specification [...] So would I add a plus or minus number for SPH for my right eye (the one with the astigmatism)? On Oct 22, 9:24 am, didgidude <[EMAIL PROTECTED]> wrote: > For what it's worth, I tried progressives from Zenni, hoping they > would be useful for working at my computer workstation, but did not > like them. Blame that on me, not Zenni. The corridor for sharp > vision of my PC screen was too narrow for me, and I found that too > distracting. In fact, I could not adapt to progressives at all after > an honest 2-week effort and went back happily to bifocals. For > computer work, I simply ordered a pair of single-vision glasses with > the spherical powers equal to the sum of my distance-vision sphere > plus half the add for close vision. The cylinder numbers are the same > as prescribed. These work very well for me, and I am satisfied. > > You are trying to avoid changing back and forth between glasses, so my > solution would probably not please you. I have some comments on your > prescription, however. If you do not need glasses for distant > objects, and your reading prescription is +2.50 for one eye and +3.00 > for the other, then it seems to me that with a computer prescription > of +2.00 and +2.50, that the add for reading should be just 0.50 > (added to the spherical numbers for computer vision). That would give > you the +2.5 and +3.0 for reading. Adding the reading numbers to the > computer numbers for your "adds" to get +4.5 and +5.5 will result in a > very close reading distance, I would think -- not far from the front > of your nose. My "add", for example is +2.0 for both eyes to get me > from infinity to standard reading distance -- about 14-15 inches. > > With what you have told us about your vision, it looks like your > prescription for progressives should be something like right and left > sphere numbers of 0.00 (no distance spherical power), the cylinder > values you have stated, and adds of about +2.5 and +3.0 for close > distances. Your computer screen with these glasses would then be > sharp when viewed somewhere between the top and the bottom of your > lenses. Let's hope you receive some more opinions on this forum to > help sort this out. I do think that if you're going to try > progressives that you should have your prescription confirmed so that > you get the best possible numbers to submit. You might need just a > little sphere for distance vision to go along with your cylinder > specification and progressives, in my opinion, are less forgiving of > small errors than other glasses. > > An alternative, of course, is trifocals. Plano (no correction) for > the top, computer numbers for the middle, and reading numbers for the > bottom. I do not know whether or not you can get trifocals from one > of the on-line suppliers though. > > On Oct 22, 12:14 am, "Jason K." <[EMAIL PROTECTED]> wrote: > > > I'm looking to buy some glasses with progressive lenses from Zenni. I > > need these glasses for mainly computer reading and reading paper > > documents up close. Currently I have two pairs of glasses that I am > > constantly switching and taking off. It's a pain in the neck when I'm > > having to read docs and then have to take my glasses off to look at a > > board farther away (6+ feet). It kills productivity. I want > > progressives because I have read that I could get some with my > > computer glasses script, reading glasses script, and no distance > > correction all in one pair. > > The computer glasses prescription has sphere values of +2.00 for the > > left eye and +2.50 for the right. The reading prescription has +2.50 > > for the left eye and +3.00 for the right. In the prescription, the > > right eye also has a cylinder of -0.50 and an axis of 140. Neither > > pair has add values. > > From what I understand, I should make my computer prescription the > > main prescription and the add values should be my reading > > prescription. Is this correct? > > One of my main concerns is about whether Zenni will make the > > progressives I order without distance correction on the top of the > > lenses. I want a pair of glasses with the distance zone on the top of > > the lens, but they would be "clear" so that I can see far away when > > need be. Is this how Zenni would make my progressives? --~--~---------~--~----~------------~-------~--~----~ Check us out at the oft-updated http://www.glassyeyes.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 -~----------~----~----~----~------~----~------~--~---
