Vivity lenses implant real world contrast sensitivity results
Posted , 11 users are following.
I thought of giving something back to this small community as I received so much from it. I’m done with both eyes now, so for me is game-over, there’s nothing I can change now but I hope the information here will help others.
I had my first eye done on November 3, 2021, about 7 weeks ago now and my right eye (dominant one) on November 22, 2021, a month ago.
Left eye was targeted for -0.5D mini-monovision and the right eye for plano.
I took a contrast sensitivity test on VCS com on November 14 and another one yesterday, December 22.
Here are some details about the tests.
First test:
The left eye was two weeks after the surgery and the right eye was before its surgery.
To be able to test my right eye I had to wear reading glasses otherwise I would not have been able to properly see the screen.
Second test:
I took the test 7 weeks after the first surgery and 4 weeks after the second surgery, so my right eye had double the time to recover than my left eye, when I took the test.
Results summary
First test:
Left eye total score; 38/45 (84%)
Right eye total score: 43/45 (96%)
Second test:
Left eye total score: 42/45 (93%)
Right eye total score: 40/45 (89%)
This two things jump right at me:
- the left eye improved greatly from week 3 to week 8
- the right eye was better than the left eye at the time of testing (89% vs 84%).
What I learned from this is that healing time matters a lot.
There you have it, you got the numbers. Based on what I actually see now, I can’t say I notice the contrast loss (before and after), if there is any.
The only thing that bothers me is Christmas lights at night, Not all of them, just the ones more than let’s say, 15-20m away and especially the blue ones.
God, I hate those now, they actually almost make me dizzy.
Other than that, during the day I’m 100% happy with my vision (distance, intermediate and near).
Here are the screenshots for my contrast sensitivity tests results:
0 likes, 54 replies
Jennifer_Guess NeluG
Edited
Wow, I just took this test (pre-surgery) and it's depressing. I could not even test my left eye (worst cataract) as I could not even make out the gaps in the circles at the beginning. So, I just tested my (supposedly) good eye (not as much of a cataract) and got a 26 out of 45/ 58% 😦 Darn! I look forward to seeing what changes after surgery.
NeluG Jennifer_Guess
Posted
Hi Jennifer,
The test was useful to me because I had no cataract at all before surgery but for someone with cataract and with poor vision at intermediate distance the test doesn't help much.
Sometimes, between my first surgery and second surgery (three weeks apart), I would just lie down on my bed and look at the ceiling, one eye at a time.
Yes, there was a bit of a contrast difference between the operated eye and the other one but to me it was insignificant, which gave me courage and faith in my choice of lens, Vivity.
rwbil Jennifer_Guess
Posted
I am a bit suspicious of this test. I tried some other online ones and I scored a 100%, but this one I score horrible.
I also have a 4K monitor that allows one to squeeze those pixels very close together.
I mean some of the pictures just look like a solid ball. I even tried to look at it with both eyes and at closer distance and still the same thing.
I think this is a test to see if you can see the invisible girl.
I will have to ask my doctor if he does a CS tests and see how I do on it.
NeluG rwbil
Posted
Interesting, I didn't find the test to be difficult at all.
It's a bit harder for me at higher frequency bars but I guess that's normal, for everyone.
I searched for other online contrast sensitivity tests but the ones I found were too easy for me and I didn't think they were relevant.
By the way, the invisible girl is so pretty! 😃
RonAKA Jennifer_Guess
Posted
I am suspicious of the premise of that site. Testing your vision to see if you have toxins in your body??? Is it possible they sell a "cure" for the toxins in your body?
.
In any case I found this site that has a crude contrast sensitivity test. I found it quite easy to read the bottom line with either my monofocal distance IOL or my contact lens simulated monovision eye (with mild cataract).
.
Sydney Orthoptic Contrast Sensitivity Test
NeluG RonAKA
Posted
That's what I was saying before: the Sydney test is way too easy and for me it didn't do anything helpful.
About the VCS test; I was only interested in the contrast sensitivity test and I took advantage of the one free test per account.
I didn't care about anything else what they offer but the one I took seemed the best for me.
rwbil RonAKA
Edited
That test is a joke compared to that VSC Test. I could have gone many more lines down on that Sydney Orthoptic Contrast Sensitivity Test.
RonAKA rwbil
Posted
Perhaps the purpose of the VSC test is to identify a problem that is not really there? The site looks to me like one that is trying to sell something.
RonAKA rwbil
Posted
I did a bit of a search for pdf documents which give a higher resolution contrast sensitivity test chart. I found a good one with this information:
.
eyeline co nz assets product documents Hamilton Veale Contrast Sensitivity Test pdf
.
Tested with both eyes, which is a mixed bag off:
a natural eye, with a cataract, and contact correction to -1.25 D
An IOL eye corrected for distance
.
I can see the first two letters of the bottom line, but not the last two. I guess that gives me a score of 15 out of a possible 16, for whatever that means....
NeluG RonAKA
Posted
I asked my 21 years old son about the last two letters and he said there are no letters there and he's vision is perfect, just like mine used to be when I was young.
I also see the first two letters from the last row without issues.
RonAKA NeluG
Edited
The last two letters are supposed to be KN, but I don't see them. The first two in the last line are EL and I can see those two.
rwbil RonAKA
Posted
This time I did the test with both my desktop 4K monitor and my Laptop 1080 monitor. And the monitor makes a big difference, as the laptop was much clearer.
I could see the LA clearly on the desktop, but could see the LAYZ reasonable clearly on the Laptop.
At first I could not see the EL then I repositioned myself by moving around; same distance but up and down and side to side. And then I could see the EL. In fact I could see the EL pretty clearly on the laptop once I found the right position.
At least I scored as normal eyesight on this test.
RonAKA rwbil
Posted
I suspect one could adjust the contrast on a monitor until you see all the letters. I did not attempt to do that. The monitor I use is for doing digital darkroom photography for printing, and I calibrate it automatically with a Spyder device.
Jennifer_Guess RonAKA
Edited
My husband did the test on my (Macbook Air) and scored in the upper 90s- so it's me for sure! I did not see any invisible lady or anything either!!
NeluG RonAKA
Posted
For sure, one could play with the monitor contrast to achieve better results but that's not the point.
The point is to take the before and after tests using identical settings otherwise we're comparing apples to oranges.
Just as a side-note, I also use my monitor for my photos processing and I calibrated it with i1Display Pro.
RonAKA NeluG
Posted
I recalibrated my Asus ProArt 24" (it was overdue!) with Spyder and got exactly the same result. First two letters of the last line, but not the two on the right.