Table 5.
8 Items of Vision Knowledge Between Baseline and Evaluation Survey
| Variable | (1) | (2) | (3) | (4) | (5) | (6) | (7) | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Control (n=490) | Education (n=513) | Free Eyeglasses (n=506) | Education Plus Free Eyeglasses (n=598) | t-Test (P value) | |||||||
| Baseline | Evaluation | Baseline | Evaluation | Baseline | Evaluation | Baseline | Evaluation | (2)–(1) | (3)–(1) | (4)–(1) | |
| Correct Response, N (%) | |||||||||||
| Knowledge about Myopia | |||||||||||
| Myopia (near sightedness) causes difficulty in seeing distant objects | 210(42.86) | 229(46.73) | 193(37.62) | 215(41.91) | 236(46.64) | 245(48.42) | 272(45.48) | 280(46.82) | 0.917 | 0.609 | 0.52 |
| Myopia is caused by deformed eyeballs | 110(22.45) | 120(24.49) | 77(15.01) | 129(25.15) | 83(16.40) | 126(24.90) | 115(19.23) | 149(24.92) | 0.014 | 0.049 | 0.271 |
| Myopia cannot be treated by eye exercise | 64(13.06) | 47(9.59) | 77(15.01) | 170(33.14) | 70(13.83) | 37(7.31) | 88(14.72) | 180(30.10) | <0.001 | 0.244 | <0.001 |
| Myopia affects school performance | 232(47.35) | 312(63.67) | 253(49.32) | 398(77.58) | 261(51.58) | 351(69.37) | 300(50.17) | 449(75.08) | 0.003 | 0.723 | 0.03 |
| Knowledge about Eyeglasses Importance | |||||||||||
| Myopia can be corrected by proper fitting of quality eyeglasses | 88(17.96) | 303(61.84) | 96(18.71) | 307(59.84) | 101(19.96) | 298(58.89) | 131(21.91) | 343(57.45) | 0.479 | 0.204 | 0.028 |
| Eyeglasses is needed even when the myopia degree is low | 180(36.73) | 159(32.45) | 181(35.28) | 258(50.29) | 168(33.20) | 168(33.20) | 232(38.80) | 329(55.11) | <0.001 | 0.269 | <0.001 |
| Wearing eyeglasses does not cause eyesight to get worse | 123(25.10) | 113(23.06) | 103(20.08) | 206(40.16) | 129(25.49) | 109(21.54) | 138(23.08) | 251(41.97) | <0.001 | 0.6 | <0.001 |
| Primary school or younger students with myopia should wear eyeglasses | 165(33.67) | 154(31.43) | 172(33.53) | 259(50.49) | 185(36.56) | 174(34.39) | 247(41.30) | 353(59.03) | <0.001 | 0.985 | <0.001 |
Notes: Data source, baseline survey and evaluation survey; This table shows the results of descriptive statistics on 8 items of vision knowledge; Columns (1)–(4) shows the number and percentage of correct answers to 8 relevant vision knowledge questions in the baseline survey and the evaluation survey.