Long-term comparison of postoperative refractive outcomes between phacotrabeculectomy and phacoemulsification.
Chung Jae Keun, Wi Jae Min, Lee Kwan Bok, Ahn Byung Heon, Hwang Young Hoon, Kim Mijin, Jung Jong Jin, Yoo Young Cheol
AI Summary
This study found no significant long-term difference in refractive outcomes between phacotrabeculectomy and phacoemulsification in open-angle glaucoma patients, implying similar refractive predictability for both surgeries.
Abstract
Purpose
To compare long-term postoperative refractive outcomes between phacotrabeculectomy and phacoemulsification, both with posterior chamber intraocular lens implantation.
Setting
Department of Ophthalmology, Konyang University, Kim's Eye Hospital, Myung-Gok Eye Research Institute, Seoul, South Korea.
Design
Retrospective comparative study.
Methods
Postoperative refractive outcomes were compared between patients with cataract and coexisting primary or secondary open-angle glaucoma (OAG) who had phacotrabeculectomy (combined group) and patients with cataract with or without coexisting OAG who had phacoemulsification alone (phaco-only group). The refractive prediction error, mean absolute error, and median absolute error were compared between groups. Subgroup analysis based on preoperative axial length (AL) was performed (medium >22.0 to <24.5 mm; medium-long ≥24.5 to <26.0 mm; long ≥26.0 mm).
Results
The combined group comprised 51 eyes and the phaco-only group, 74 eyes. The mean interval between surgery and refraction measurement was 14.70 months ± 10.80 (SD) (median 13.0 months) and 4.81 ± 4.97 months (median 2.0 months), respectively. Postoperatively, there was no statistically significant between-group difference in the following mean values: refractive prediction error, -0.05 ± 0.64 versus -0.04 ± 0.52 (P = .905); mean absolute error, 0.46 ± 0.44 versus 0.38 ± 0.36 (P = .258); median absolute error, 0.32 (interquartile range [IQR], 0.17, 0.67) versus 0.28 (IQR, 0.13, 0.54) (P = .297). Subgroup analysis also did not show significant differences between the 2 groups (all P > .05).
Conclusion
The long-term postoperative refractive outcomes of phacotrabeculectomy and phacoemulsification alone were not significantly different in eyes with OAG, regardless of preoperative AL.
MeSH Terms
Shields Classification
Key Concepts5
There was no statistically significant difference in the mean refractive prediction error between phacotrabeculectomy (-0.05 0.64) and phacoemulsification alone (-0.04 0.52) in patients with cataract and coexisting open-angle glaucoma (OAG) or cataract with or without coexisting OAG, respectively (P = .905).
There was no statistically significant difference in the mean absolute error between phacotrabeculectomy (0.46 0.44) and phacoemulsification alone (0.38 0.36) in patients with cataract and coexisting open-angle glaucoma (OAG) or cataract with or without coexisting OAG, respectively (P = .258).
There was no statistically significant difference in the median absolute error between phacotrabeculectomy (0.32 [interquartile range, 0.17, 0.67]) and phacoemulsification alone (0.28 [interquartile range, 0.13, 0.54]) in patients with cataract and coexisting open-angle glaucoma (OAG) or cataract with or without coexisting OAG, respectively (P = .297).
Subgroup analysis based on preoperative axial length (medium >22.0 to <24.5 mm; medium-long ≥24.5 to <26.0 mm; long ≥26.0 mm) did not show significant differences between phacotrabeculectomy and phacoemulsification alone in postoperative refractive outcomes (all P > .05).
The long-term postoperative refractive outcomes of phacotrabeculectomy and phacoemulsification alone were not significantly different in eyes with Open-Angle Glaucoma (OAG), regardless of preoperative axial length.
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