1. In the last eight months I've had the lenses in both eyes replaced due to Cataracts. I went with a mini mono-focal setup and had a intermediate lens put in my LE and a distance lens put in my RE. My LE sight is pretty good (20/70) but the vision range of the LE is very narrow . I see clearly from around 13" to 36" out which is great for looking at my phone and computer. The RE, which was set for distance has a range of about 23" to infinity or (20/20). It amazes me how close and far the distance this lens can see. My question is why is the range so tight for the intermediate lens vs the distance lens which is much wider. Couldn't the surgeon have given me a longer range for the intermediate eye when they set up the lens? It would be nice if the LE had more range on the distance side.
The closer to the eye, the tighter is the range you get, this is how the optics in the eyes works. But it sounds like your LE refraction have hit a bit to close, that the refraction is off.
Even with good measurements and a skilled surgeon, refractive surprises is always a risk, the surgeon picks the lens that should hit the desired target, but in real life things can change slightly.
Have your eye clinic told you the measurements after the implants?
I have premium lenses in both eyes, both my lenses have hit +0.75 over the target, which gives me less near vision than I could have had, but I have chosen not to do anything about it.
If your lens have hit too close, there really is no easy solution. You need glasses, contacts or a laser surgery like Lasik or Smile, if you want to change it permanently.
Hi Jeff!
Good question. I would be interested to hear what your ophthalmologist’s answer is as I have wondered too why the distance lenses can see so far but with just small changes in diopter, the visual range shrinks.
I have heard that having an astigmatism widens the “blur circle” which widens the effective range, although it is not crystal clear throughout.
What are your numbers? Do you have astigmatism?