Table 1.
Refractive Changes at One Month and One Year After Nd:YAG Capsulotomy
| Follow-Up Intervals | Before Capsulotomy | After Capsulotomy | Difference | p-value |
|---|---|---|---|---|
| Mean ± SD (Range) | Mean ± SD (Range) | Mean ± SD (Range) | ||
| One month, n=605 | ||||
| Sphere, (D) | −0.039±1.060 (−6.50 to +5.50) | −0.068±0.975 (−4.00 to +5.25) | −0.029±0.604 (−4.75 to +4.25) | 0.050 |
| Cylinder, (D) | −0.813±0.678 (−5.00 to 0.00) | −0.771±0.688 (−5.00 to 0.00) | 0.042±0.448 (−2.25 to +2.00) | 0.006* |
| SE, (D) | −0.453±1.038 (−8.25 to +5.13) | −0.473±0.941 (−5.25 to +4.88) | −0.020±0.590 (−4.75 to +4.25) | 0.141 |
| Axis, degrees | 91.11±54.96 (1.00 to 180.00) | 89.04±54.62 (1.00 to 180.00) | −2.066±56.53‡ (−178.00 to +170.00) | 0.803 |
| CDVA, logMAR | 0.171±0.198 (−0.13 to +1.00) | 0.048±0.120 (−0.60 to +1.30) | −0.123±0.192 (−1.00 to +1.30) | <0.0001* |
| One year, n=211 | ||||
| Sphere, (D) | 0.011±1.083 (−4.25 to +5.50) | 0.036±1.012 (−3.00 to +6.00) | 0.025±0.570 (−2.00 to +3.00) | 0.851 |
| Cylinder, (D) | −0.851±0.647 (−3.25 to 0.00) | −0.750±0.612 (−3.50 to 0.00) | 0.101±0.455 (−1.00 to +2.00) | 0.003* |
| SE, (D) | −0.415±1.059 (−4.75 to +5.13) | −0.340±1.003 (−3.25 to +5.00) | 0.075±0.561 (−1.50 to +3.13) | 0.271 |
| Axis, degrees | 101.90±51.91 (3.00 to 180.00) | 96.73±52.19 (3.00 to 180.00) | −5.20±52.00‡ (−171.00 to +175.00) | 0.231 |
| CDVA, logMAR | 0.179±0.199 (0.00 to +1.301) | 0.056±0.161 (−0.13 to +1.48) | −0.122±0.196 (−0.90 to +0.88) | <0.0001* |
Notes: *Statistically significant with a p-value <0.05. ‡Positive differences refer to counterclockwise change, negative differences refer to clockwise change.
Abbreviations: CDVA, corrected distance visual acuity; D, diopter; logMAR, logarithm of the minimum angle of resolution; Nd, neodymium; YAG, yttrium-aluminum-garnet; SD, standard deviation; SE, spherical equivalent.