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|Title:||Longer axial length is protective of diabetic retinopathy and macular edema||Authors:||Man, R.E.K.
|Issue Date:||Sep-2012||Citation:||Man, R.E.K., Sasongko, M.B., Sanmugasundram, S., Nicolaou, T., Jing, X., Wang, J.J., Wong, T.Y., Lamoureux, E.L. (2012-09). Longer axial length is protective of diabetic retinopathy and macular edema. Ophthalmology 119 (9) : 1754-1759. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ophtha.2012.03.021||Abstract:||Purpose: To assess the association of ocular biometric parameters and refractive error with diabetic retinopathy (DR) and diabetic macular edema (DME) in persons with diabetes. Design: Cross-sectional, clinic-based study. Participants: Patients with diabetes aged 18 years or more from the Royal Victorian Eye and Ear Hospital, Victoria, Australia. Methods: Spherical equivalent (SE) refraction was assessed using objective autorefraction. Axial length (AL), corneal curvature (CC), and anterior chamber depth (ACD) were measured using the IOLMaster (Carl Zeiss Meditech AG, Jena, Germany). Diabetic retinopathy was graded from 2-field retinal photographs using the modified Airlie House classification system. Diabetic macular edema was defined as absent or present from fundus photographs and confirmed by optical coherence tomography (Stratus, Carl Zeiss Meditech AG). Main Outcome Measures: Severity of DR was grouped as no DR, mild DR (Early Treatment of Diabetic Retinopathy Study [ETDRS] = 20), moderate DR (ETDRS = 31-43), and severe DR (ETDRS >43). Diabetic macular edema severity was classified as mild, moderate, or severe. Results: A total of 208 of 630 eyes (33.0%) had DR. In multivariate models, eyes with longer AL were less likely to have mild (odds ratio [OR], 0.58; 95% confidence interval [CI], 0.41-0.83; P = 0.006 per mm increase), moderate (OR, 0.73; 95% CI, 0.60-0.88; P = 0.002), and severe DR (OR, 0.67; 95% CI, 0.53-0.85; P=0.01), and had a lesser risk of mild (OR, 0.70; 95% CI, 0.56-0.86; P < 0.001) and moderate DME (OR, 0.72; 95% CI, 0.56-0.93; P=0.002) but not severe DME. No association was found for SE, ACD, and CC with DR. Conclusions: In persons with diabetes, eyes with longer ALs are less likely to have DR and DME. Financial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article. © 2012 American Academy of Ophthalmology.||Source Title:||Ophthalmology||URI:||http://scholarbank.nus.edu.sg/handle/10635/109442||ISSN:||01616420||DOI:||10.1016/j.ophtha.2012.03.021|
|Appears in Collections:||Staff Publications|
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