Overminus and prism n = 28 | Observation n = 29 | |||
---|---|---|---|---|
n | % | n | % | |
Refractive error (SE, D) | ||||
+ 4.00 to <+ 5.00 | 1 | 3.6 | 2 | 6.9 |
+ 3.00 to <+ 4.00 | 2 | 7.1 | 3 | 10.3 |
+ 2.00 to <+ 3.00 | 4 | 14.3 | 7 | 24.1 |
+ 1.00 to <+ 2.00 | 10 | 35.7 | 7 | 24.1 |
0 to <+ 1.00 | 10 | 35.7 | 10 | 34.5 |
-1.00 to<0 | 1 | 3.6 | 0 | 0.0 |
Mean (SD) | 1.43 ± 1.12 | 1.42 ± 1.25 | ||
Range | −0.25 to + 4.5 | + 0.25 to + 4.25 | ||
Difference in means (95% CI) | 0.01 (−0.61 to 0.62) | |||
Change between baseline and 12 months | p = 0.278 | p = 0.378 | ||
Exotropia control | ||||
0 to 3 | 20 | 71.4 | 2 | 6.9 |
4 to 6 | 6 | 21.4 | 19 | 65.5 |
7 to 9 | 2 | 7.1 | 8 | 27.6 |
Mean (SD) | 1.75 ± 1.18 | 5.72 ± 1.28 | ||
Range | 3 to 8 | 3 to 8 | ||
Difference in means (95% CI) | −3.97 (−4.63 to −3.33) | |||
Change between baseline and 12 months | p<0.001 | p = 0.546 | ||
Exodeviation by PACT at distance | ||||
No exodeviation (orthophoria) | 0 | 0.0 | 0 | 0.0 |
1 to 9 | 0 | 0.0 | 0 | 0.0 |
10 to 14 | 6 | 21.4 | 4 | 13.8 |
16 to 18 | 3 | 10.7 | 11 | 37.9 |
20 to 25 | 11 | 39.3 | 11 | 37.9 |
30 to 35 | 8 | 28.6 | 3 | 10.3 |
40 to 45 | 0 | 0.0 | 8 | 28.6 |
Mean (SD) | 22.46 ± 7.61 | 27.48 ± 7.24 | ||
Range | 12 to 35 | 18 to 45 | ||
Difference in means (95% CI) | −5.02 (−8.96 to −1.08) | |||
Change between baseline and 12 months | p<0.001 | p = 0.177 | ||
Exodeviation by PACT at near | ||||
No exodeviation (orthophoria) | 0 | 0.0 | 0 | 0.0 |
1 to 9 | 4 | 14.3 | 0 | 0.0 |
10 to 14 | 6 | 21.4 | 6 | 20.7 |
16 to 18 | 8 | 28.6 | 11 | 37.9 |
20 to 25 | 8 | 28.6 | 10 | 34.5 |
30 to 35 | 2 | 7.1 | 2 | 6.9 |
40 to 45 | 0 | 0.0 | 0 | 0.0 |
Mean (SD) | 16.25 ± 7.03 | 26.72 ± 7.41 | ||
Range | 8 to 30 | 16 to 40 | ||
Difference in means (95% CI) | −10.47 (−14.31 to −6.64) | |||
Change between baseline and 12 months | p<0.001 | p = 0.127 | ||
Preschool Randot near stereoacuity, arcsec (log arcsec) | ||||
40″ (1.6 log arcsec) | 7 | 25 | 3 | 10.3 |
60″ (1.78 log arcsec) | 8 | 28.6 | 7 | 24.1 |
100″ (2.0 log arcsec) | 8 | 28.6 | 6 | 20.7 |
200″ (2.3 log arcsec) | 4 | 14.3 | 6 | 20.7 |
400″ (2.6 log arcsec) | 1 | 3.6 | 3 | 10.3 |
800″ (2.9 log arcsec) | 0 | 0.0 | 4 | 13.8 |
Nil (3.1 log arcsec) | 0 | 0.0 | 0 | 0.0 |
Mean (SD) (log arcsec) | 1 .91 ± 0.26 | 2.16 ± 0.42 | ||
Range (log arcsec) | 1.6 to 2.6 | 1.6 to 2.9 | ||
Difference in means (95% CI) | −0.25 (−0.44 to −0.06) | |||
Change between baseline and 12 months | p<0.001 | p = 0.265 |