scholarly journals Analysis of Morphologic and Functional Outcomes in Macular Edema due to Central Retinal Vein Occlusion Treated with Intravitreal Dexamethasone Implant

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Alfredo Niro ◽  
Giancarlo Sborgia ◽  
Alessandra Sborgia ◽  
Luigi Sborgia ◽  
Claudio Furino ◽  
...  

Purpose. To analyze anatomic and functional retinal changes and their correlation after intravitreal dexamethasone implant (DEX implant) in patients with central retinal vein occlusion- (CRVO-) related macular edema (ME) using optical coherence tomography and microperimetry. Methods. Fifteen treatment-naïve patients with functional impairment due to CRVO-related ME were enrolled in this prospective interventional case series. Main outcomes were best-corrected visual acuity (BCVA), retinal sensitivity (RS), and central retinal thickness (CRT). Secondary outcomes were ellipsoid zone (EZ) status and fixation behaviour. All patients underwent DEX implant and were retreated according to predefined criteria. Data were prospectively recorded at baseline and at month 1, 3, 6, 9, and 12. Correlation between main outcomes was analyzed. Results. Fifteen eyes of 15 patients (9 men, 6 women; mean age 61.8 ± 10.9 years) were included. BCVA and CRT significantly improved at all follow-up visits, while RS significantly improved at 3, 6, 9, and 12 months. EZ status and fixation behaviour did not change significantly. Baseline CRT had a significant negative correlation with BCVA and RS at different follow-up visits (r=−0.52  to −0.63, p≤0.04; r=−0.52, p=0.04; resp.). At all time points, there was not a significant correlation between CRT and BCVA and RS, while RS and BCVA showed a significant correlation, increasing over time (r=−0.72  to −0.89; p<0.001). Conclusion. DEX implant led to a significant morphofunctional improvement. Baseline CRT is predictive of changes of functional outcomes whose correlation increases over time after treatment.

2018 ◽  
Vol 2 (5) ◽  
pp. 289-296 ◽  
Author(s):  
Atalie C. Thompson ◽  
Akshay S. Thomas ◽  
Adam L. Rothman ◽  
Duncan Berry ◽  
Sharon Fekrat

Purpose: To investigate the longitudinal relationship between subfoveal choroidal thickness (CT) and central retinal vein occlusion (CRVO). Methods: Retrospective cohort of 104 subjects with enhanced-depth imaging optical coherence tomography for unilateral CRVO. Mean CT and best-corrected visual acuity (BCVA) were compared in eyes with and without CRVO and in eyes with CRVO with and without cystoid macular edema (CME). Results: CT was thicker in eyes with CRVO-related CME than uninvolved contralateral eyes at baseline (263.9 ± 86.9 versus 230.2 ± 87.9 µm; P < .001) and final follow-up (261.1 ± 94.7 versus 222.3 ± 86.2 µm; P = .007). CRVO eyes treated with intravitreal antivascular endothelial growth factor with or without steroid therapy showed a significant reduction in CT at final follow-up (256.3 ± 90.7 versus 236.9 ± 85.9 µm; P = .004). Subjects with CRVO who were not treated with intravitreal injections also showed a significant but more modest decline in CT over time (234.4 ± 94.2 versus 221.5 ± 97.1 µm; N = 31; P = .02). However, contralateral uninvolved eyes without CRVO did not show a significant change in CT over time (233.3 ± 87.9 versus 219.5 ± 90.6 µm; N = 71; P = .40). Persistent CME at final follow-up was associated with thicker baseline (277.6 ± 96.4 versus 235.1 ± 86.5 µm; P = .02) and final CT (265.7 ± 93.4 versus 215.0 ± 82.1 µm; P = .005). Change in CT was not related to change in BCVA ( P > .05). Conclusions: CT was greater in eyes with CRVO-related CME compared to eyes with CRVO but no CME and compared to uninvolved contralateral eyes. CT decreased in eyes with CRVO over time both among eyes that received intravitreal injections and among eyes that did not receive injections. CT may be a prognosticator of treatment response in CRVO-related CME.


2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Cristina Nicula ◽  
Dorin Nicula ◽  
Anca Rednik ◽  
Adriana Bulboaca ◽  
Ovidiu Crișan

Purpose. The purpose of the study was to assess the efficacy of intravitreal dexamethasone implant (IDI: Ozurdex®) injection in eyes with macular edema due to retinal vein occlusion. Material and Method. A retrospective, nonrandomized study was conducted in patients with macular edema (ME) due to retinal vein occlusion (RVO) who undertook intravitreal Ozurdex® as first-line treatment. We performed a complete ocular exam including macular OCT. Results. The mean BCVA (logMar) improved from 0.420.42 ± 0.23 logMar at baseline to 0.21 ± 0.23 logMar at 48 weeks in the BRVO group and from 0.72 ± 0.16 logMar at baseline to 0.31 ± 0.23 logMar at 48 weeks in the CRVO group. In both groups, CFT values decreased significantly compared to baseline (p<0.0001 at each timepoint). Reinjection for recurrent macular edema after 18 weeks was indicated in five eyes (41.67%) in the BRVO group and in six eyes (25%) in the CRVO group. Cataract developed in two eyes (16.67%) in the BRVO group and in one eye (4.17%) in the CRVO group. The IOP was higher than 25 mmHg in two cases in the BRVO group (16.66%) and in three cases (8.33%) in the CRVO group. Conclusion. Ozurdex® injected intravitreally significantly improved the mean CFT and BCVA in eyes with macular edema due to retinal vein occlusion.


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