Journal List > J Korean Ophthalmol Soc > v.53(8) > 1009136

Jang and Lee: Effects of Intravitreal Bevacizumab Injection in 3 Types of Macular Edema Secondary to Branch Retinal Vein Occlusion

Abstract

Purpose

To compare the effects of intravitreal bevacizumab injection (IVB) in 3 types of macular edema secondary to branch retinal vein occlusion (BRVO).

Methods

Patients with macular edema secondary to BRVO with at least 1-year follow-up after IVB were included in the present retrospective study. The authors classified the macular edema into 3 types according to OCT findings: diffuse macular edema (type 1), cystoid macular edema (type 2), and serous retinal detachment (type 3). The clinical outcome indicators were best corrected visual acuity, central macular thickness (CMT), and total number of injections.

Results

The total injection number was significantly higher in type 2 than type 3 (p = 0.02). Changes in CMT were significantly different between type 2 and type 3 (p = 0.03). CMT decreased significantly after IVB in all types of macular edema.

Conclusions

Morphologic classification of macular edema with OCT is useful for predicting efficacy of IVB in macular edema secondary to BRVO.

Figures and Tables

Figure 1
Classification of macular edema in BRVO patients. Type I: diffuse macular edema. Type II: cystoids macular edema. Type III: serous retinal detachment.
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Figure 2
Changes in visual acuity after intravitreal Bevacizumab injection. Type I: diffuse macular edema. Type II: cystoids macular edema. Type III: serous retinal detachment.
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Figure 3
Changes in CMT after intravitreal bevacizumab injection. Type I: diffuse macular edema. Type II: cystoids macular edema. Type III: serous retinal detachment.
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Table 1
Patients' demographics
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Values are presented as mean ± SD or number.

BCVA = best corrected visual acuity; CMT = central macular thickness.

*Diffuse macular edema; Cystoids macular edema; Serous retinal detachment; §One-way ANOVA.

Table 2
Visual acuity and central macular thickness (CMT) during follow-up period
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Values are presented as mean ± SD.

BCVA = best corrected visual acuity; CMT = central macular thickness.

*Diffuse macular edema; Cystoids macular edema; Serous retinal detachment; §p = 0.02, one-way ANOVA.

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