Monocular vs. binocular vision side effects
Posted , 6 users are following.
Guys, could you share your perception of side effects with each eye vs two eyes?
Let's say RS and LS are monocular right and left eye side effects severity. How would you estimate you binocular side effects? Is it like:
- worse than max(RS, LS) (RS + LS maybe?...)
- max(RS, LS)
- avg(RS, LS)
- min(RS, LS)
- better than min(RS, LS)
?
I currently only have pretty noticeable RS (this is the operated eye) and marginal LS. I would estimate my binocular vision like avg(RS, LS). It is enough for night driving even in a slightly rainy weather. Tried it yesterday and today - no problems. I wonder what should I expect with side effects in both eyes?
Thanks
0 likes, 5 replies
Guest mak73
Posted
Thats a tough one, because it depends on so many things, and I am not sure I understand your system.
But I will try....
Left eye have Lara edof
Right eye have Lisa trifocal
In daylight:
Lara makes some highlighting on screens with high contrast like white letter on black background, and small starburst around led lights on black background.
Lisa makes no side effects in daylight.
In the dark:
Lisa makes a small halo around some lights, if the lights are really strong a slightly bigger halo, and sometimes noting around some lights. Lisa makes concentric rings around some certain bright led lights like new type traffic lights, but not that often. I find that Lisa in general have very few visual side effects.
Lara makes halos around small lights, and makes big starburst around stronger lights, Lara starburst are much bigger than the halos from Lisa, maybe 5-10 times bigger. Lara also makes concentric rings around a lot of lights, but sometimes the concentric rings are covered behind a huge starburst, concentric rings from Lara are about 3 times larger than concentric rings from Lisa (when Lisa makes them, it is not that often).
With both eyes combined the brain have recently started to leave out some of the noise from Lara, and only show the side effects from the Lisa, which is more pleasant, so both eyes combined are much better than Lara alone.
All that said nighttime driving have never been difficult, night vision in general is very good and the side effects are not really that bothersome, it is just something that is there, it sounds a lot worse than it is.
mak73 Guest
Posted
Thank you.
I count it as #4 - min(RS, LS). It basically means that the brain tries to take the best of 2 eyes.
Deb03 mak73
Posted
I'm not sure I totally understand the question either. I have 2 monofocals. I think I might be closer to 3 - the average of the two - possibly somewhere between 3 and 4. It's definitely not 4. I see some of the effects of both, but not as bad as overlaying each of them separately. I have more glare in my LE. With both eyes together I see more glare than my RE alone but less than my LE. RE is short of plano, so it sees more light disturbances looking in the distance. When I combine with my LE, I see some but not all of these disturbances.
mak73 Deb03
Posted
Thank you Deb03,
For me it looks like you understood the question perfectly 😃
OK. So it is somewhere between 3 and 4. I would actually put my own result in between 3 and 4 too but I said 3 for simplicity.
Sorry if the question seems confusing. Let me elaborate it a bit.
Usually the vision with 2 eyes is better than with each eye separately. For ex reading with LE only or with RE only can be so-so but together they can work much better. I wonder how it works in case of halos, starbursts etc.
soks mak73
Posted
i like your functions system. i have one symfony and one natural eye with cataract. i will go with #3 for side effects. it not as bad as the symfony eye abut it is not good as the natural eye either. somewhere in between.