Abstract
Purpose
The aim of this study was to investigate the incidence of intraocular pressure (IOP) elevation after resident-performed cataract surgery and to determine variables, which influence postoperative day 1 (POD1) IOP.
Methods
In all, 1111 consecutive cataract surgeries performed only by training residents between 1 July 2001 and 30 June 2006 were included. Elevated IOP was defined as ≥23 mm Hg. Surgeries were classified according to the presence of POD1-IOP elevation. Fisher's exact test and Student t-test were used to compare both groups. Multivariate analyses using generalized estimating equations were performed to investigate predictor variables associated with POD1-IOP elevation.
Results
The average preoperative IOP was 16.0±3.2 mm Hg and the average POD1-IOP was 19.3±7.1 mm Hg, reflecting a significant increase in IOP (P<0.001, paired t-test). The incidence of POD1-IOP elevation ≥23 mm Hg was 22.0% (244/1111). Presence of glaucoma and ocular hypertension, higher preoperative IOP, and longer axial length were frequently encountered variables in the POD1-IOP elevation group (all P<0.05). Using a multivariate analysis, presence of glaucoma (P=0.004, OR=2.38; 95% confidence interval (95% CI)=1.31–4.30), presence of ocular hypertension (P=0.003, OR=6.09; 95% CI=1.81–20.47), higher preoperative IOP (P<0.001, OR=3.73; 95% CI=1.92–7.25), and longer axial length (P=0.01, OR=1.15; 95% CI=1.03–1.29) were significant predictive factors for POD1-IOP elevation.
Conclusions
IOP elevation on the first postoperative day following resident-performed cataract surgery occurred frequently (22.0%). Increased early postoperative IOP was associated with presence of glaucoma and ocular hypertension, higher preoperative IOP, and longer axial length.
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Acknowledgements
This study was supported in part by grants from the Research to Prevent Blindness, the Norman Knight Ophthalmology Legacy Fund, and the Massachusetts Lions Foundation, the Harvard 50th Anniversary Scholars Grant, a grant (2009-464) from the Asan Institute for Life Sciences, Seoul, Republic of Korea, and National Research Foundation of Korea (NRF) Grant funded by the Korean Government (NRF-2008-331-E00209).
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Material has been previously presented at the American Society of Cataract and Refractive Surgery (ASCRS) Meeting on May, 2006.
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Kim, J., Jo, MW., Brauner, S. et al. Increased intraocular pressure on the first postoperative day following resident-performed cataract surgery. Eye 25, 929–936 (2011). https://doi.org/10.1038/eye.2011.93
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DOI: https://doi.org/10.1038/eye.2011.93
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