Exploring the Eurostat database I found an interesting dataset called Physical and sensory functional limitations by sex, age and educational attainment level. The limitations are categorized for Seeing, Hearing and Walking. I downloaded the data, subset the Seeing limitation and made a little program to explore it. As expected, the lower the education level and the older the people are the more limitations they have. For sex men have less visual limitations that women. You can also compare the total visual limitations between countries, the program is here.

 visual limitations


 

The paper Visual Outcomes Following Bilateral lmplantation of Two Diffractive Trifocal Intraocular Lenses in 10 084 Eyes by Rafael Bilbao-Calabuig et al purpose is to investigate refractive and visual acuity outcomes, patient satisfaction, and spectacle independence at 3 months of 2 diffractive (non-toric) trifocal intraocular lenses (IOLs) in a large series of patients.

Table 3 shows visual acuity and refractive outcomes for each study group implanted with 1 of 2 diffractive trifocal intraocular lenses. These outcomes are shown with mean, standard deviation and range for the logMAR and there is a p value for each combination. In this first graphic I will show the visual acuity outcomes so we can easily compare between the two lenses for all the given combinations, also the p value of each is shown. You can click on the image to get a larger view:

 

tri1

 

 The second one shows the refractive outcomes, sphere and cylinder post-op as well as the follow up in months and the p value of each:

 

tri2 

 

With the graphics you can compare outcomes between the lenses easier than with the table.


 

In the study A Multicenter Prospective Cohort Study on Refractive Surgery in 15011 Eyes by Kamiya et al there is a table for demographics. I will show that table in graphics for easier comparation between procedures. The first one is gender by procedure:

 

kamiya3

 

Then all the other characteristics for the whole population:

 

kamiya2

 

And then the same characteristics per procedure, you can click on the image to enlarge it:

 

kamiya1

 

With this graphic is much easier to compare every characteristic between procedures.