Mini- Monovision diopter questions! Please answer any question that you can.
Posted , 7 users are following.
Before I contact Doc again I wanted to clarify my understanding. In the context of Mini Monovision...
Q1- For the eye set to far, am I correct in understanding that in general it is better to be under corrected than over corrected. So for example -.2 is better than +.2?
Q2- If Plano in the far eye means perfect sharp vision to infinity. Like mountains and moon? What will -.2 or -.5 mean?
Your sharp point moves from infinity to bit closer? How much closer? Moon and mountains will appear slightly blurry, completely blurry? I can't wrap my head around this fully. I have +1 reading glasses that I rarely use, so if I look far wearing them then something like that is what my wife will see if it overshoots to +.5 (ok half that blurriness as my reader are +1 and not +.5)?
Q3- Dr Zeiss's recommendation of -.2 with -1.4 for example is superior to Dr Rockstars Plano and -1 recommendation, as it wins you more near and intermediated vision sacrificing really far vision. Correct?
Specially if Dr. Rockstar plano ends up overshooting in the + direction after healing. That is wasted range, correct? Let us say if it overshoots by .5 after healing, then in Dr Zeiss's case it will still end up being +.3! However in Dr Rockstar's case it will end up being +.5!!!!!!
Q4- What about if for far eye we aim for -.5 and it undershoots by .5, then it ends up being .-1 in the far eye!!!!! What does one see in distance if they have -1? Basically what I see with +1 readers?
Q5- If I remember correctly. Dr Zeiss said the Zeiss lense's come is steps of .5. I think Sok's mentioned in one thread IOLs' come in steps of .3? Dr Rockstar did not mention the steps but he said that he can use Zeiss or Hoya. He said though that the Hoya's steps brings it more closer to plano than Zeiss's one. I assume their starting number are different even if they are both in .5 or whatever increments.
Q6- If Dr Zeiss's recommendation of -.2 and -1.4 is taken (difference of 1.2 Diopter between the 2 eyes). Then if it overshoots .5 in opposite direction in each eye, then it could end up being a difference of 2.4 Diopter!!!!
Although that will be taken into account when operating on the 2nd eye. Although Dr Zeiss even wanted to operate on both eyes together! As Sue said that shows why never to operate on both eyes at the same time.
Jeez!!! 😃
0 likes, 33 replies
Guest W-H
Posted
Reply waiting to be moderated - I don´t understand this forum....
There are many factors involved in choosing targets, i really don´t think any of us is qualified to do this.
Different lenses, different eyes, different expectations.
I really think you need to tell the surgeon what outcome you wish for, and let him decide the rest, he have done this thousands of times before.
A monofocal lens can cover one of the three zones, far, intermediate and near.
You have two eyes, you can only cover two zones fully with monofocals in both eyes.
Most people choose to cover far and intermediate, and use readers for near, because this is the setup that makes you able to go out and do stuff without wearing glasses for either far or midrange.
But you can sacrifice a little far to get a little more near, you take some from one zone and move a little into another zone, in all cases I think it is matter of telling the surgeon what is most important, what hobbies/job is important to you, how you live your life.
No matter where the focal points ends up, you can always move the focal points to where you want them, with glasses or contact lenses.
As an example you can move both focal points to near, and have optimal reading vision with both eyes at the same time, if you wish.
And how vision turns out, how well you can see, is very different from person to person, the surgeon can only try to hit the targets, and time will tell how much each individual person can see.
I think all big players in the field makes good monofocals, the surgeon will choose the one he feels comfortable with in the given situation for the specific surgery, which I think always will be better, than us amateurs guessing 😃
Even though I would also stay away from the 3 piece stuff....
I wish your wife the best of luck!
Deb03 W-H
Posted
I am not going for mini/mono but maybe you could call it micro-mono. Dr is targeting -.4 in nondominant eye. If I end up closer to plano then I will target dominant eye slightly myopic. I think my first surgeon targeted plano and I ended up .5 farsighted. In his defense, I did not request that I'd rather he err on the myopic side. I just assumed he would. I would not want to operate on both eyes at the same time. You can adjust the second one if necessary.
soks Deb03
Posted
hi deb are you doing mini monovision with the bausch and lomb lens? i am seeing dr. safran next month to discuss lens exchange.
Deb03 soks
Posted
I've been going back and forth. The current plan is slightly myopic (-.4/-.5). This is one notch more myopic than the he would choose for distance vision. My surgery is in 2 weeks so I don't have too much longer to decide! Glad to hear you are going to see him.
soks Deb03
Posted
good luck. i would be interested to see how much near you get with the monofocal.