Shin, J.H.; Kim, S.H.; Oh, S.; Lee, K.M. Factors Associated with Refractive Prediction Error after Phacotrabeculectomy. J. Clin. Med.2023, 12, 5706.
Shin, J.H.; Kim, S.H.; Oh, S.; Lee, K.M. Factors Associated with Refractive Prediction Error after Phacotrabeculectomy. J. Clin. Med. 2023, 12, 5706.
Shin, J.H.; Kim, S.H.; Oh, S.; Lee, K.M. Factors Associated with Refractive Prediction Error after Phacotrabeculectomy. J. Clin. Med.2023, 12, 5706.
Shin, J.H.; Kim, S.H.; Oh, S.; Lee, K.M. Factors Associated with Refractive Prediction Error after Phacotrabeculectomy. J. Clin. Med. 2023, 12, 5706.
Abstract
Purpose: To compare refractive prediction error (PE)s between phacotrabeculectomy and phacoemulsification. Methods: Refractive PE was defined as the difference of spherical equivalent between the predicted value using the Barrett Universal II formula and the actual value obtained at postoperative one month. Forty-eight eyes that had undergone phacotrabeculectomy (19 eyes, open-angle glaucoma; 29 eyes, angle-closure glaucoma) were matched with 48 eyes that had undergone phacoemulsification by age, average keratometry value and axial length (AL), and their PEs were compared. The factors associated with PE were analyzed by multivariable regression analyses. Results: Phacotrabeculectomy group showed a larger absolute PE compared to the phacoemulsification group (0.51 ± 0.37 Diopters vs. 0.38 ± 0.22, P=0.033). Larger absolute PE was associated with longer AL (P=0.010) and higher intraocular pressure (IOP) difference (P=0.012). Hyperopic shift (PE>0) was associated with shallower preoperative anterior chamber depth (ACD) (P=0.024) and larger IOP difference (P=0.031). In the phacotrabeculectomy group, the PE was inversely correlated with AL: long eyes showed myopic shift and short eyes hyperopic shift (P=0.002). Conclusions: Surgeons should be aware of the possibility of worse refractive outcomes when planning phacotrabeculectomy especially in eyes with high preoperative IOP, shallow ACD, and/or extreme AL.
Copyright:
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