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Retinal racemose hemangioma (retinal arteriovenous communication) is a rare, congenital vascular abnormality of the retina that can impair vision. Herein, a conservative management approach is described in the context of multimodal imaging including swept-source optical coherence tomography angiography. Background/Purpose: Retinal racemose hemangioma is a rare congenital abnormality of the retinal vasculature with a variety of secondary manifestations that can cause vision loss, including macular edema. This report aims to demonstrate the use of swept-source optical coherence tomography angiography in further characterizing this abnormality. Methods: Case report with multimodal imaging including swept-source optical coherence tomography angiography. Results: A 56-year-old woman with blurred vision was diagnosed macular edema secondary to retinal racemose hemangioma. Localization of the arterial-venous connection was identified with swept-source optical coherence tomography angiography at the deep capillary plexus. Conservative management of the associated foveal exudation ultimately led to a favorable outcome. Conclusion: Observation or topical therapy may be useful and warranted in select cases of retinal racemose hemangioma. The anomalous vascular connection in retinal racemose hemangioma seems to originate at the level of the deep capillary plexus in this case; however, larger studies are necessary for corroboration. Evolving angiographic modalities such as swept-source optical coherence tomography angiography may continue to provide insights for this rare disease. [ABSTRACT FROM AUTHOR]

Purpose To describe the multimodal imaging findings of retinal lesions that clinically resemble retinal astrocytic hamartomas (RAHs), but also have unique characteristics that we believe represent a novel variant. Methods Observational study. Five eyes in five patients with solitary retinal lesion evaluated at the retina division of three institutions. We describe the multimodal imaging findings including fundus photography, fundus autofluorescence, fluorescein angiography, spectraldomain optical coherence tomography (OCT), sweptsource OCT, swept-source OCT angiography and ultrasonography. Results The retinal lesions described shared similar appearance to RAHs but demonstrated unique features such as glistening granular appearance on fundus photographs with perivascular hyperreflectivity with OCT and OCT angiography. Conclusion The lesions described herein appear to have unique characteristics that warrant a designation as a novel RAH variant. The name presumed retinal pericapillary astrocytic hamartoma is suggested. [ABSTRACT FROM AUTHOR]

We present the outcomes of 2 cases of cystoid macular edema, complicating an eccentric macular hole, treated with argon laser therapy to barricade the macular hole. Purpose: To report the outcomes of laser therapy to barricade eccentric full-thickness macular hole with associated cystoid macular edema. Methods: We report two patients who developed an eccentric full-thickness macular hole with persistent cystoid macular edema after pars plan vitrectomy with and without internal limiting membrane peel for epiretinal membrane and the results of argon laser therapy. Results: Barricade argon laser therapy was applied concentric to the full-thickness macular hole. Associated cystoid macular edema was noted to resolve within 1 to 3 months of therapy in both cases. Conclusion: Barricade laser therapy surrounding a macular hole can lead to resolution of associated cystoid macular edema. Pathogenic mechanisms to explain this favorable outcome are discussed. [ABSTRACT FROM AUTHOR]