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Arch Soc Esp Oftalmol. 2013 Oct;88(10):373-9. doi: 10.1016/j.oftal.2013.01.020. Epub 2013 May 29.

[Intravitreal triamcinolone combined with grid laser photocoagulation for patients with cystoid macular edema and advanced diabetic retinopathy: pilot study].

[Article in Spanish]

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  • 1División de Retina, Wilmer Eye Institute, Escuela de Medicina de la Universidad de Johns Hopkins, Baltimore, MD, EE. UU.; King Khaled Eye Specialist Hospital, Riad, Arabia Saudí. Electronic address: arevalojf@jhmi.edu.



To determine if primary intravitreal injection of triamcinolone acetonide (TA) plus grid laser photocoagulation (GLP) is effective in treating cystoid diabetic macular edema (DME).


Prospective comparative non-randomized clinical trial. Fourteen eyes (14 patients) diagnosed with cystoid DME were treated with GLP according to the Early Treatment Diabetic Retinopathy Study (ETDRS) guidelines, plus an intravitreal injection of 4 mg of TA. A matched control group (16 eyes [16 patients]) treated with GLP was selected retrospectively from our medical records. Best-corrected visual acuity (BCVA), and quantitative change in optical coherence tomography (OCT) macular thickness were assessed.


Mean follow up was 14.9 months (12 to 19 months). In 3 (21.4%) eyes BCVA increased > 2 ETDRS lines, in 5 (35.7%) eyes BCVA remained the same, and BCVA decreased >2 ETDRS lines in 6 (42.8%) eyes. Central macular thickness, as measured by OCT, decreased a mean of 106.2 μm (30.2%). The difference with the control group was not statistically significant (P = .2). Four (28.5%) eyes developed an increased in intraocular pressure in our study group.


Although all of our patients showed an improvement of cystoid DME by means of OCT and fluorescein angiography, 42.8% (6 eyes) lost 2 or more lines in BCVA with primary intravitreal injection of TA plus GLP. Primary intravitreal injection of TA plus GLP may not be effective for cystoid DME at 12-months.

Copyright © 2010 Sociedad Española de Oftalmología. Published by Elsevier Espana. All rights reserved.


Combined therapy; Diabetic retinopathy; Diffuse cystoid diabetic macular edema; Edema macular diabético quístico difuso; Fotocoagulación láser en rejilla; Grid laser photocoagulation; Intravitreal triamcinolone acetonide; Retinopatía diabética; Terapia combinada; Triamcinolona intravítrea

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