Clinical Study
Polar Value Analysis of Corneal Astigmatism in Intrastromal Corneal Ring Segment Implantation
Table 2
Polar value analysis.
| | Preoperative polar value (D) | Postoperative polar value (D) | Polar value change (D) | | | | AKP(+0) | AKP(+45) | AKP(+0) | AKP(+45) | ΔAKP(+0) | ΔAKP(+45) | ΔAKP(+0) | ΔAKP(+45) |
| | 7.29 ± 3.52 | 0 | 5.82 ± 4.29 | −0.50 ± 2.50 | −1.46 ± 2.80 | −0.50 ± 2.50 | 0.006 | 0.005 | 0.252 |
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Hotelling’s trace between preoperative and postoperative keratometry; univariate analysis for ΔAKP(+0) and ΔAKP(+45).
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