Laser Treatment for Retinal Arterial Macroaneurysm

Bianco, Lorenzo; Gawęcki, Maciej; Antropoli, Alessio; Arrigo, Alessandro; Bandello, Francesco; Parodi, Maurizio Battaglia

doi:10.3390/photonics9110851

Cited by 3 publications

(1 citation statement)

References 71 publications

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“…In our case, we opted for observation as it is the standard mode of management for asymptomatic RAMs. 7 However, recent studies suggest that patients receiving laser or anti-VEGF treatments achieve higher closure rates and better visual outcomes compared to those who choose follow-up without treatment. 8 Moreover, the decision to follow up without treatment approach may elevate the risk of thrombus formation in unruptured RAM affecting the optic disc.…”

Section: Discussionmentioning

confidence: 99%

Branch retinal artery occlusion with unruptured retinal arterial macroaneurysm post–SARS-CoV-2 vaccination: A case report

Murata,

Nagasato,

Tanaka

et al. 2023

European Journal of Ophthalmology

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Introduction Many adverse occurrences in the eye have been reported after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination. This is the first report of a patient with an unruptured retinal arterial macroaneurysm (RAM) who developed branch retinal artery occlusion (BRAO) one day after SARS-CoV-2 vaccination (BNT162b2 by Pfizer-BioNTech). Patient Report A 75-year-old man with a pertinent history of type-2 diabetes mellitus visited the hospital complaining of sudden visual loss in his right eye 1 day after receiving the fourth dose of the SARS-CoV-2 mRNA vaccine; his best-corrected visual acuity (BCVA) decreased from 1.0 to 0.7 (Snellen decimal). The patient had previously been diagnosed with an unruptured RAM and superior paracentral acute middle maculopathy in the same eye. Fundus examination showed increased sheathing of blood vessels. Indocyanine green showed a hyperfluorescent area suggestive of RAM on the right eye disc. Fluorescein angiography and optical coherence tomography angiography revealed arterial obstruction findings in the upper retinal area. Diagnosis and Intervention The patient was diagnosed with BRAO with RAM and was followed up without any additional treatment. Follow-up examination after 4 months did not show any improvement in BCVA value. Conclusion This case suggested that BRAO could develop after SARS-CoV-2 vaccination in patients with unruptured RAM; however, more research is required to investigate the causes.

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Section: Discussionmentioning

confidence: 99%

Branch retinal artery occlusion with unruptured retinal arterial macroaneurysm post–SARS-CoV-2 vaccination: A case report

Murata,

Nagasato,

Tanaka

et al. 2023

European Journal of Ophthalmology

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Juxtafoveal Retinal Arterial Macroaneurysm Diagnosed on Ancillary Imaging

Balas,

Mandell,

Arjmand

2024

Journal of VitreoRetinal Diseases

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Purpose: To describe a case of retinal arterial macroaneurysm, a rare, focal arterial dilatation that is commonly found temporally within the first 3 orders of retinal arterial bifurcations. Methods: An observational case report was evaluated. Results: A 49-year-old man with prediabetes and hypercholesteremia presented with decreasing vision and a paracentral scotoma in the right eye. His ocular history was insignificant. There was significant intraretinal and subretinal fluid with perifoveal exudates. After 2 intravitreal injections of aflibercept for a tentative diagnosis of branch retinal vein occlusion, there was no improvement. Intravenous fluorescein angiography showed a small retinal arterial macroaneurysm less than 60 µm from the foveal avascular zone that was treated with low-power focal laser photocoagulation. This resulted in complete resolution of the macular edema with significant improvement in visual acuity. Conclusions: This rare and successfully treated case of an exudative juxtafoveal retinal arterial macroaneurysm highlights the importance of multimodal imaging in establishing an accurate diagnosis.

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Development of a Computer System for Automatically Generating a Laser Photocoagulation Plan to Improve the Retinal Coagulation Quality in the Treatment of Diabetic Retinopathy

2023

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In this article, the development of a computer system for high-tech medical uses in ophthalmology is proposed. An overview of the main methods and algorithms that formed the basis of the coagulation plan planning system is presented. The system provides the formation of a more effective plan for laser coagulation in comparison with the use of existing coagulation techniques. An analysis of monopulse- and pattern-based laser coagulation techniques in the treatment of diabetic retinopathy has shown that modern treatment methods do not provide the required efficacy of medical laser coagulation procedures, as the laser energy is nonuniformly distributed across the pigment epithelium and may exert an excessive effect on parts of the retina and anatomical elements. The analysis has shown that the efficacy of retinal laser coagulation for the treatment of diabetic retinopathy is determined by the relative position of coagulates and parameters of laser exposure. In the course of the development of the computer system proposed herein, main stages of processing diagnostic data were identified. They are as follows: the allocation of the laser exposure zone, the evaluation of laser pulse parameters that would be safe for the fundus, mapping a coagulation plan in the laser exposure zone, followed by the analysis of the generated plan for predicting the therapeutic effect. In the course of the study, it was found that the developed algorithms for placing coagulates in the area of laser exposure provide a more uniform distribution of laser energy across the pigment epithelium when compared to monopulse- and pattern-based laser coagulation techniques.

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Laser Treatment for Retinal Arterial Macroaneurysm

Cited by 3 publications

References 71 publications

Branch retinal artery occlusion with unruptured retinal arterial macroaneurysm post–SARS-CoV-2 vaccination: A case report

Branch retinal artery occlusion with unruptured retinal arterial macroaneurysm post–SARS-CoV-2 vaccination: A case report

Juxtafoveal Retinal Arterial Macroaneurysm Diagnosed on Ancillary Imaging

Development of a Computer System for Automatically Generating a Laser Photocoagulation Plan to Improve the Retinal Coagulation Quality in the Treatment of Diabetic Retinopathy

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