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Medical Forum / General / Vision / September 2007Help interpret prescription changes
As you will see by my prescription, I am very nearsighted. I just went to my opthomogist after 3 years, and he said "my vision changed only slightly" but nothing more. I was wondering if you could help me understand what changed. 2004: Rt: -16.5 sph, +1.25 cyl, 90 axis; Lft: -14 sph, +1.5 cyl, 90 axis 2007: Rt: -16.5 sph, +1.75 cyl, 90 axis; Lft: -13.5 sph, +2.0 cyl, 90 axis If I just look at sphere, it looks like my nearsightedness stayed about the same (with perhaps even a slight improvement in the left eye). However, the cyl numbers went up. Does that mean my astigmatism got a little bit worse? To further confuse things, when I ran the equivalent sphere calculations, it looked like both eyes improved a little - something that just doesn't happen with my ever- deteriorating vision. Would it make any sense to get new contacts or glasses with these changes? I'm going to see a specialist about possible IOL or clear lens extraction next month. Dear Chris, Would it make any sense to get new contacts or glasses with these changes? Otis> No. I'm going to see a specialist about possible IOL or clear lens extraction next month. Otis> Replacing the internal lens of the eye (if correctly done) should bring you back to "plano". I would ask them if they can "clear" -13 diopers of myopia. But wait for them to tell you. On Sep 22, 4:26 pm, chrispdi...@hotmail.com wrote: > As you will see by my prescription, I am very nearsighted. I just > went to my opthomogist after 3 years, and he said "my vision changed [quoted text clipped - 17 lines] > changes? I'm going to see a specialist about possible IOL or clear > lens extraction next month. Dear Chris, Would it make any sense to get new contacts or glasses with these changes? Otis> No. I'm going to see a specialist about possible IOL or clear lens extraction next month. Otis> Replacing the internal lens of the eye (if correctly done) should bring you back to "plano". I would ask them if they can "clear" -16 diopers of myopia. But wait for them to tell you. Otis> Or just give then a call if you are concerned. They are the experts. Otis ============= On Sep 22, 4:26 pm, chrispdi...@hotmail.com wrote: > As you will see by my prescription, I am very nearsighted. I just > went to my opthomogist after 3 years, and he said "my vision changed [quoted text clipped - 17 lines] > changes? I'm going to see a specialist about possible IOL or clear > lens extraction next month. Sorry. Rishi Giovanni Gatti (Zetsu), Lena102938, and Otis Brown are trolls who haunt s.m.v. Rishi has published, and is trying to sell worthless books. Otis is pathologically dishonest and actually hurts people. Following his advice can induce double vision in those not working closely with an eye doctor. Lena102938 uses anti-eye doctor rhetoric as a substitute for ANY actual information. It seems she now has to wear glasses and has developed a pathological (and ILLOGICAL) resentment toward the industry that "foisted these glasses upon her." You'd do well to ignore them and wait for responses from the caring, compassionate eye doctors who DO also participate in this site. > As you will see by my prescription, I am very nearsighted. I just > went to my opthomogist after 3 years, and he said "my vision changed > only slightly" but nothing more. I was wondering if you could help me > understand what changed. It helps to know how old you are. I'm guessing you're over 25? > 2004: Rt: -16.5 sph, +1.25 cyl, 90 axis; Lft: -14 sph, +1.5 cyl, 90 > axis [quoted text clipped - 5 lines] > eye). However, the cyl numbers went up. Does that mean my > astigmatism got a little bit worse? A half-diopter of cyl is pretty typical for a 3-year interval and you _are_ getting less nearsighted. It happens to lots of myopes. It won't cure itself but it might get a little better still. Good news is it's probably quit getting worse. > Would it make any sense to get new contacts or glasses with these > changes? I'm going to see a specialist about possible IOL or clear > lens extraction next month. If you're getting CLE (clear lens exchange) next month don't change anything yet. If you're wearing spherical contacts it might be worthwhile to get a new box because you aren't seeing well with them as it is. Don't buy a whole new supply of torics, or new glasses, unless you have complaints at near. -MT, OD If the cyl number increases, does that mean my astigmatism is getting worse? You said, "A half-diopter of cyl is pretty typical for a 3- year interval". It went from 1.5 to 2, which on pure math might look like it's worsened by 33%. Am I just incorrectly interpreting the meaning of cyl? I'm 36 years old... and yes, I'm going to see a specialist about possible lens replacement, but I'm not sure I'll be able to afford it since they told me it's considered "cosmetic" and not covered by insurance if you don't have cataracts. Even if I do, the procedure would have to wait until 2008 so that I can use flex spending account from work. > If the cyl number increases, does that mean my astigmatism is getting > worse? You said, "A half-diopter of cyl is pretty typical for a 3- > year interval". It went from 1.5 to 2, which on pure math might look > like it's worsened by 33%. Your prescription expresses cylinder in plus, so "increases" in cyl occur as a result of one meridian getting _less_ nearsighted while the other remained about the same. It's pretty normal. > Am I just incorrectly interpreting the > meaning of cyl? Yes, but cyl changes simply because you're alive. In six months you could easily measure 025 less. It varies. The textbooks say there is a gradual tendency to increase over a lifespan. In your case, increasing cyl means decreasing myopia. > I'm 36 years old... and yes, I'm going to see a specialist about > possible lens replacement, but I'm not sure I'll be able to afford it > since they told me it's considered "cosmetic" and not covered by > insurance if you don't have cataracts. Even if I do, the procedure > would have to wait until 2008 so that I can use flex spending account > from work. Another factor is how close you are to presbyopia. It helps to know how old you are. BTW - I'm 99% sure your prescription could be more accurate so don't take every quarter diopter as gospel. Measuring axis exactly 90 degrees 2 eyes, four measurements in three years - that's statistically improbable. Axis seldom changes drastically but it usually changes. -MT On Sep 22, 8:52 pm, chrispdi...@hotmail.com wrote: > If the cyl number increases, does that mean my astigmatism is getting > worse? You said, "A half-diopter of cyl is pretty typical for a 3- > year interval". It went from 1.5 to 2, which on pure math might look > like it's worsened by 33%. Am I just incorrectly interpreting the > meaning of cyl? Looking it as total power in the meridians: 2004 RE: -16.5 / -14.25 LE: - 14 / -12.5 2007 RE: -16.5 / -13.75 LE: - 13.5 / - 11.5 So the percentage change will not seem as large, 5 -10%. Dr Judy > I'm 36 years old... and yes, I'm going to see a specialist about > possible lens replacement, but I'm not sure I'll be able to afford it > since they told me it's considered "cosmetic" and not covered by > insurance if you don't have cataracts. Even if I do, the procedure > would have to wait until 2008 so that I can use flex spending account > from work. Hi, >how close you are to presbyopia. It helps to know how old you are. 36 years old. I think the anger is shrouding your vision, Mike. Didn't you read? > I think the anger is shrouding your vision, Mike. Didn't you read? Why do I have to read? I can demonstrate the truths for myself. -MT >Why do I have to read? Because you asked, silly. You can't 'demonstrate' someone's age, you have to read it. > You can't 'demonstrate' someone's age, you have to read it. Why not? You can "demonstrate" perfect vision without reading anything except Bates? -MT >Why not? Because you don't have their passport, or identity or whatnot. You have to ask them first. >You can "demonstrate" perfect vision without reading anything except Bates? Sure you can. You don't even need to read Bates, you can read nothing at all. You can find out all by yourself, the truths. Bates acknowledged that the methods used in the cure of imperfect sight were not his, but the methods of Nature. > Bates acknowledged that the methods used in the cure of imperfect > sight were not his, but the methods of Nature. And every bit as effective! Nature has a poor record of curing presbyopia, if you actually bother to measure. Perhaps when you get presbyopia you can demonstrate that truth, too. -MT Hi, >Nature has a poor record of curing presbyopia, if you actually bother Not if you cure it intentionally. Nature is there to cure you, always, but you must call out to it first. >And every bit as effective! Should I prepare for another lecture from you on 'placebo'? Oh dear. > Should I prepare for another lecture from you on 'placebo'? No, you've made it clear that you place great faith in placebo treatments. I'm not going to change that. -MT > No, you've made it clear that you place great faith in placebo treatments. Faith, no. I have just demonstrated the truth in the cure of imperfect sight. That does not require faith, but a willingness to try. On the other hand, it could be a placebo treatment. Oh no! But it works in 100% cases! Who cares if it is. Sorry. Rishi Giovanni Gatti (Zetsu), Lena102938, and Otis Brown are trolls who haunt s.m.v. Rishi has published, and is trying to sell worthless books. Otis is pathologically dishonest and actually hurts people. Following his advice can induce double vision in those not working closely with an eye doctor. Lena102938 uses anti-eye doctor rhetoric as a substitute for ANY actual information. It seems she now has to wear glasses and has developed a pathological (and ILLOGICAL) resentment toward the industry that "foisted these glasses upon her." You'd do well to ignore them and wait for responses from the caring, compassionate eye doctors who DO also participate in this site. >>Nature has a poor record of curing presbyopia, if you actually bother > > Not if you cure it intentionally. See I don't know anyone who's done that. You don't either. -MT Sorry. Rishi Giovanni Gatti (Zetsu), Lena102938, and Otis Brown are trolls who haunt s.m.v. Rishi has published, and is trying to sell worthless books. Otis is pathologically dishonest and actually hurts people. Following his advice can induce double vision in those not working closely with an eye doctor. Lena102938 uses anti-eye doctor rhetoric as a substitute for ANY actual information. It seems she now has to wear glasses and has developed a pathological (and ILLOGICAL) resentment toward the industry that "foisted these glasses upon her." You'd do well to ignore them and wait for responses from the caring, compassionate eye doctors who DO also participate in this site. Hi, >See I don't know anyone who's done that. You don't either. And you know everything there is to know, of course. If you don't know something happens, it must be impossible. Brilliant logic there. > If you don't know something happens, it must be impossible. > > Brilliant logic there. The logic is I've been measuring it for 25 years. I've never seen it happen. You've never measured it and you say it happens all the time. That doesn't mean it's impossible. It just means I haven't seen it after a checking a hundred thousand or so. Where are all those people who fixed their own presbyopia? Why aren't there Central Fixation parlors next to every nail salon? Illogical means assuming Rishi is right and everybody else is wrong. -MT > > If you don't know something happens, it must be impossible. > [quoted text clipped - 7 lines] > > Where are all those people who fixed their own presbyopia? Mike, They never have came. >> Where are all those people who fixed their own presbyopia? > > Mike, > They never have came. I don't spend my entire life in the office. I've never met anyone who claimed to have "cured their presbyopia by rest methods." Where are they? -MT |
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