Posted , 3 users are following.
Has anyone come across a premium lens that is available in the UK (privately), and that does not have reduced contrast, nor problems with night driving ? I have had / am having monofocal iols following a cataract operation, but would eventually prefer to have them swapped for premium lenses if advisable.
0 likes, 5 replies
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at201 r28705
Posted
I think that if you want to minimise the chances of having night vision issues, a monofocal lens for distance is the best option.
The best recommendation I have at this time is to use a combination of a monofocal lens and a Symfony lens (similar to and yet slightly different arrangement than in my eyes).
For the ease of reference, I will repeat what I just posted in another post.
"I have a Symfony Toric lens in my right eye for distance and a monofocal lens in my left eye for close-up. With this combination, I have good day vision at all distances beyond 16 inches. However, I wish that my night vision were better, the main issue being the seeing of multiple concentric circles or halos around lights at night time.
Based on my experience and what I know today, this is what I would have done and thus, this is what I would suggest to other people at this time. Essentially, this consists of combining the use of the Symfony lens and the monofocal lens a little differently. Please consider this if good night vision is important to you and you still want to have good vision at far, intermediate as well as the near distances.
1. For your dominant eye, have a monofocal lens set for the best focus at far distance. That should provide you the best chance for avoiding the night vision issues.
2. For your non-dominant eye, have a Symfony lens set for the best focus at 32 to 40 inches. This should provide you good vision at the intermediate and near distances, without seeing the multiple circles around lights in the distance. (if you closed your dominant eye, you may still see them; but you won't see them with both eyes open).
Most of the surgeons don't suggest a combination of different types of lenses, but would usually consider it favorably if you bring it up."
r28705 at201
Posted
at201 r28705
Posted
1. I think that a lens exchange is probably not a good idea. Most of the eye surgeons don't like to do it unless necessary.
2. The combination of a monofocal lens and a Symfony lens gives me a good vision at 40 cm (for reading), 60 cm, 90 cm, as well as far distance (except for some night vision issue). Since you already have a monofocal lens, this option should work for you also. (you may want to try using monovision with a contact lens before committing to this choice).
3. When did you have the cataract surgery in the non-dominant eye? What is your uncorrected and corrected distance vision in that eye?
4. How good is your vision in the dominant eye right now?
Depending on your answers, having a Symfony lens set for the best focus at about 80 cm to 100 cm may still be your best choice for the dominant eye. Even though using the dominant eye for distance is somewhat preferable, it is not necessary.
r28705 at201
Posted
Thank you. The distance vision in the non-dominant eye is +0.5 sphere, -0.75 cyl x10 6/6+ The surgery was done last October. The vision in the dominant eye is reasonable although there is an early stage cataract. It is due to be operated on in July. I tried monovision for an hour or so, but only for distance and mid, and it wasn't really long enough to decide whether I would get used to it. I wouldn't be happy trying it with iols as it wouldn't be reversible !
at201 r28705
Posted
Regarding your statement that "I wouldn't be happy trying it with iols as it wouldn't be reversible," changing the lens is hard, but adjusting the vision provided by that lens from far to intermediate or near (or vice versa) is straightforward with LASIK. I had my left eye changed from the best focus at about 22 inches to about 17 inches with LASIK couple of years back (that also corrected my astigmatism in that eye).