Influence of Biometric Variables on Refractive Outcomes after Cataract Surgery in Angle-closure Glaucoma Patients
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Purpose: To evaluate the influence of biometric variables on refractive outcomes after cataract surgery in angle-closure glaucoma (ACG) patients. Methods: In this case-control study, 42 ACG patients, 40 open-angle glaucoma (OAG) patients, and 35 controlswithout glaucoma who had undergone conventional cataract surgery were enrolled consecutively. Electronicmedical records, including preoperative biometric variables (keratometric diopter, axial length, anterior chamberdepth, and lens thickness), the refractive change (RC), and the absolute value of refractive change (ARC)were reviewed. Results: In the control and OAG patients, the anterior chamber depth was negatively correlated with the ARC(r = -0.344, p = 0.043 and r = -0.431, p = 0.006, respectively), whereas there was no correlation in the ACGpatients. Lens thickness was positively correlated with the RC, but not with the ARC, in the control and OAGgroups (r = 0.391, p = 0.020 and r = 0.501, p = 0.001, respectively). In contrast, lens thickness in the ACGgroup was not correlated with the RC but was positively correlated with the ARC (r = 0.331, p = 0.032). Conclusions: In contrast with the anterior chamber depth, preoperatively measured lens thickness may be auseful predictor of the direction of the RC after cataract surgery in control and OAG patients. However, in ACGpatients, a thicker lens was correlated with a larger RC, regardless of the direction of the shift (hyperopic ormyopic).
Abstract
Purpose: To evaluate the influence of biometric variables on refractive outcomes after cataract surgery in angle-closure glaucoma (ACG) patients. Methods: In this case-control study, 42 ACG patients, 40 open-angle glaucoma (OAG) patients, and 35 controlswithout glaucoma who had undergone conventional cataract surgery were enrolled consecutively. Electronicmedical records, including preoperative biometric variables (keratometric diopter, axial length, anterior chamberdepth, and lens thickness), the refractive change (RC), and the absolute value of refractive change (ARC)were reviewed. Results: In the control and OAG patients, the anterior chamber depth was negatively correlated with the ARC(r = -0.344, p = 0.043 and r = -0.431, p = 0.006, respectively), whereas there was no correlation in the ACGpatients. Lens thickness was positively correlated with the RC, but not with the ARC, in the control and OAGgroups (r = 0.391, p = 0.020 and r = 0.501, p = 0.001, respectively). In contrast, lens thickness in the ACGgroup was not correlated with the RC but was positively correlated with the ARC (r = 0.331, p = 0.032). Conclusions: In contrast with the anterior chamber depth, preoperatively measured lens thickness may be auseful predictor of the direction of the RC after cataract surgery in control and OAG patients. However, in ACGpatients, a thicker lens was correlated with a larger RC, regardless of the direction of the shift (hyperopic ormyopic).
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