Ocular Manifestations of Flavivirus Infections.

Flaviviruses are a group of positive-sense, single-stranded RNA viruses predominantly transmitted by arthropods (mainly mosquitoes) that cause severe endemic infections and epidemics on a global scale. They represent a major cause of systemic morbidity and death and are expanding worldwide. Among this group, dengue fever, the West Nile virus, yellow fever, Japanese Encephalitis, and, recently, the Zika virus have been linked to a spectrum of ocular manifestations.

Swept-source Optical Coherence Tomography Angiography in Active and Scarred Toxoplasmic Retinochoroiditis.

Purpose: To describe optical coherence tomography angiography (OCTA) findings in eyes with active and scarred toxoplasmic retinochoroiditis.

Methods: OCTA scans in active (25 eyes) and scarred (17 eyes) retinochoroiditis were retrospectively reviewed.

Results: In active lesions, OCTA findings included a non-detectable flow signal area in retinal vascular plexuses and choriocapillaris in all 25 eyes (100%), an abnormal intraretinal vascular process in 2 eyes (8%), and an associated area of retinal flow deficit secondary to branch retinal artery occlusion in one eye (4%).

Multimodal Imaging of Acute Foveolitis following COVID-19 Vaccination.

Purpose: To report a case of unilateral acute foveolitis following COVID-19 vaccination.

Methods: A case report.

Results: A 24-year-old woman developed a sudden blurring of vision in the left eye (LE) 5 days after receiving the first dose of COVID-19 vaccine.

Ocular Manifestations of Emerging Arthropod-Borne Infectious Diseases.

Purpose: To review the clinical features, diagnosis, treatment modalities, and prognosis of arthropod-borne infectious diseases.

Methods: This is a narrative review on arthropod-borne infectious diseases including general and ophthalmological aspects of these infectious diseases. A comprehensive literature review between January 1983 and September 2020 was conducted in PubMed database.