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. 2012 Jul;7(3):219–224.

Table 2.

Quality of life scores in the study groups

Subscales Study groups (Mean±SD) Difference P-value
PRK (n=114) Specs/CL (n=114) Mean (95% CI)
General Health 96.2±12 74.1±24.4 22.2 17 to27.4 <0.001
General Vision 90.1±17.3 66.3±23.2 23.8 18.2 to 29.4 <0.001
Ocular Pain 90.9±13.3 87.8±17.6 3.1 -1.2 to 7.4 0. 35
Near Activities 97.4±9.4 86.1±13.5 11.3 8.2 to14.5 <0.001
Distance Activities 96.6±7.5 82.7±15 13.8 10.6 to 17.1 <0.001
Social Function 99.9±0 92.7±15.6 7.2 4.2 to 10.2 <0.001
Mental Health 97.7±5.4 84±16.3 13.7 10.4 to 17 <0.001
Role Difficulties 98.5±4.1 84±20.5 14.6 10.5 to 18.6 <0.001
Dependency 100±0 95.8±11.9 4.2 1.9 to 6.4 <0.001
Driving 96.7±13.2 77.4±21.9 19.3 13.5 to 25.1 <0.001
Color Vision 99.9±0 98.3±7.1 1.6 -0.2 to -0.3 >0.99
Peripheral Vision 99.6±3.3 89.4±16.9 10.1 6.8 to 13.5 <0.001
Total Score 97±4.4 86.1±10.7 11 8.7 to 13.2 <0.001

SD, standard deviation; PRK, photorefractive keratectomy; Specs/CL, spectacles and contact lenses; CI, confidence interval