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목적 : To assess the accuracy of intraocular lens (IOL) power prediction for cataract surgery with open angle glaucoma (OAG) and identify preoperative angle parameters correlated with postoperative unpredicted refractive errors.
방법 : This study comprised 45 eyes from 45 OAG subjects and 63 eyes from 63 non-glaucomatous cataract subjects. We investigated the differences between preoperative predicted refractive errors and postoperative refractive errors. Preoperative predicted refractive errors were obtained by biometry and compared to postoperative refractive errors measured by auto-refractometer 2month postoperatively. Anterior angle parameters were determined using swept source optical coherence tomography. We investigated correlations between preoperative angle parameters and postoperative unpredicted refractive errors.
결과 : In patients with OAG, significant differences occurred between preoperative predicted and postoperative real refractive errors, with more myopia than predicted. No significant differences occurred in controls. Angle parameters (AOD, ARA, TISA, and TIA) at the superior and inferior quadrant were significantly correlated with differences between predicted and postoperative refractive errors in OAG patients (-0.321 to -0.408, p<0.05). Superior quadrant AOD 500 was significantly correlated with postoperative refractive differences in multivariate linear regression analysis (β=-2.2925, R2=0.404).
결론 : Clinically unpredicted refractive errors after cataract surgery were more common in OAG than in controls. Certain preoperative angle parameters, especially AOD 500 at the superior, were significantly correlated with these unpredicted errors.
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