[Q37] Medical context: Eye health history ​​​​​​​ 36. My contact lens history includes:
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Question Count Score
Never < 5 years 5 to 10 years 11 to 20 years > 20 years
Soft lenses 479 2.14
Hard (PMMA) lenses 478 1.47
RGP lenses 478 1.27
Hybrid lenses 478 1.09
Ortho K lenses 478 1.01
Scleral lenses 478 1.25
Average 1.37
Soft lenses
Answer Count Percent
20% 40% 60% 80% 100%
Never 243 50.73%
< 5 years 82 17.12%
5 to 10 years 53 11.06%
11 to 20 years 46 9.6%
> 20 years 55 11.48%
Total 479 100 %
Hard (PMMA) lenses
Answer Count Percent
20% 40% 60% 80% 100%
Never 360 75.31%
< 5 years 56 11.72%
5 to 10 years 33 6.9%
11 to 20 years 15 3.14%
> 20 years 14 2.93%
Total 478 100 %
RGP lenses
Answer Count Percent
20% 40% 60% 80% 100%
Never 424 88.7%
< 5 years 17 3.56%
5 to 10 years 12 2.51%
11 to 20 years 11 2.3%
> 20 years 14 2.93%
Total 478 100 %
Hybrid lenses
Answer Count Percent
20% 40% 60% 80% 100%
Never 456 95.4%
< 5 years 10 2.09%
5 to 10 years 6 1.26%
11 to 20 years 4 0.84%
> 20 years 2 0.42%
Total 478 100 %
Ortho K lenses
Answer Count Percent
20% 40% 60% 80% 100%
Never 474 99.16%
< 5 years 4 0.84%
5 to 10 years 0 0%
11 to 20 years 0 0%
> 20 years 0 0%
Total 478 100 %
Scleral lenses
Answer Count Percent
20% 40% 60% 80% 100%
Never 385 80.54%
< 5 years 73 15.27%
5 to 10 years 14 2.93%
11 to 20 years 6 1.26%
> 20 years 0 0%
Total 478 100 %