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Foveal bulges linked to better BCVA in eyes with resolved macular edema
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The presence of a foveal bulge in healthy eyes and eyes with resolved macular edema associated with branch retinal vein occlusion may indicate better best corrected visual acuity, according to a study.
The retrospective, observational case series included 31 eyes of patients with macular edema attributed to BRVO. A control group included 31 healthy fellow eyes.
Through spectral-domain optical coherence tomography, researchers identified foveal bulges in all 31 eyes in the control group and in seven eyes in the BRVO group at final visit, a statistically significant difference (P < .0001).
Eyes in the control group had significantly better mean BCVA than eyes in the BRVO group (P < .0001). The outer segment length in eyes in the BRVO group was significantly shorter than in the control group (P < .0001).
Of the seven eyes in the BRVO group with foveal bulges, mean BCVA was better (P < .0001), central foveal thickness was thicker (P = .0248) and photoreceptor outer segment length was longer (P = .0001) compared with those with no foveal bulge after resolution of macular edema.
“In the BRVO group, the BCVA was significantly better in the eyes with foveal bulge than in eyes without a foveal bulge, despite the fact that all eyes had a complete resolution of the macular edema and had an intact IS/OS line,” the authors said.
Disclosure: The authors have no relevant financial disclosures.
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