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  • Title: Reduced intraocular pressure after cataract surgery in patients with narrow angles and chronic angle-closure glaucoma.
    Author: Brown RH, Zhong L, Whitman AL, Lynch MG, Kilgo PD, Hovis KL.
    Journal: J Cataract Refract Surg; 2014 Oct; 40(10):1610-4. PubMed ID: 25134991.
    Abstract:
    PURPOSE: To evaluate the effect of cataract surgery on intraocular pressure (IOP) in patients with narrow angles and chronic angle-closure glaucoma (ACG) and to determine whether the change in IOP was correlated with the preoperative pressure, axial length (AL), and anterior chamber depth (ACD). SETTING: Private practice, Atlanta, Georgia, USA. DESIGN: Retrospective case series. METHODS: Charts of patients with narrow angles or chronic ACG who had cataract surgery were reviewed. All eyes had previous laser iridotomies. Data recorded included preoperative and postoperative IOP, AL, and ACD. The preoperative IOP was used to stratify eyes into 4 groups. RESULTS: The charts of 56 patients (83 eyes) were reviewed. The mean reduction IOP in all eyes was 3.28 mm Hg (18%), with 88% having a decrease in IOP. There was a significant correlation between preoperative IOP and the magnitude of IOP reduction (r = 0.68, P < .001). The mean decrease in IOP was 5.3 mm Hg in eyes with a preoperative IOP above 20 mm Hg, 4.6 mm Hg in the over 18 to 20 mm Hg group, 2.5 mm Hg in the over 15 to 18 mm Hg group, and 1.4 mm Hg in the 15 mm Hg or less group. The mean follow-up was 3.0 years ± 2.3 (SD). CONCLUSIONS: Cataract surgery reduced IOP in patients with narrow angles and chronic ACG. The magnitude of reduction was highly correlated with preoperative IOP and weakly correlated with ACD. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.
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