Related Experiment Video
Updated: Jul 3, 2026

A Murine Model of Dengue Virus-induced Acute Viral Encephalitis-like Disease
Published on: April 28, 2019
Foveolitis associated with dengue Fever: a case series
Boon-Kwang Loh1, Kristine Bacsal, Soon-Phaik Chee
1Singapore National Eye Centre, Singapore. lohboonkwang@yahoo.com
Background:
Dengue fever (DF), a viral infection caused by dengue virus, is characterized by fever, headache, muscle and joint pains. Approximately 50-100 million people are infected annually. Ocular manifestations during DF are uncommon and include intraretinal hemorrhages and cotton wool spots; manifestations predominantly characterized by foveal involvement have not been described before in DF or any other retinopathies. We describe the clinical features of a series of patients with DF-associated foveolitis.
Methods:
A retrospective review of patients with maculopathy associated with DF was conducted. Patients found to have a yellow-orange lesion at the fovea, supported by a typical optical coherence tomography (OCT) finding of disruption of the outer neurosensory retina, were analyzed.
Results:
Ten eyes of 6 patients were studied. The mean age was 19.8 years. The mean presenting best corrected visual acuity was 6/45 (range of 6/7.5 to counting fingers). Fundus examination revealed a yellow-orange lesion at the fovea which corresponded to outer neurosensory retina disruption on OCT. Multifocal electroretinography showed decreased foveal and parafoveal responses. Treatment was variable, depended on visual acuity and ranged from observation to immunosuppression.
Conclusion:
Foveolitis may be associated with DF. OCT is a useful tool for the diagnosis and monitoring of progression of this condition.
Insights
Foveolitis, a novel finding in dengue fever (DF), presents as a yellow-orange lesion at the fovea. Optical coherence tomography (OCT) aids in diagnosing this condition, which may impact visual acuity.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Retinal Imaging
Background:
- Dengue fever (DF) is a common viral infection with varied symptoms.
- Ocular manifestations of DF are rare, with foveal involvement previously undescribed.
- This study introduces DF-associated foveolitis.
Purpose of the Study:
- To describe the clinical features of foveolitis in patients with dengue fever.
- To investigate the role of optical coherence tomography (OCT) in diagnosing and monitoring this condition.
Main Methods:
- Retrospective review of patients with DF-associated maculopathy.
- Analysis of patients with foveal yellow-orange lesions and outer neurosensory retina disruption on OCT.
- Assessment of visual acuity and electroretinography responses.
Main Results:
- Ten eyes of 6 patients with DF-associated foveolitis were analyzed.
- A characteristic yellow-orange foveal lesion and outer neurosensory retina disruption on OCT were observed.
- Reduced visual acuity and decreased foveal/parafoveal responses on multifocal electroretinography were noted.
Conclusions:
- Foveolitis can be associated with dengue fever.
- OCT is a valuable diagnostic and monitoring tool for DF-associated foveolitis.
- Treatment strategies for DF-associated foveolitis vary based on visual acuity.
More Related Videos
08:36Measuring Dengue Virus RNA in the Culture Supernatant of Infected Cells by Real-time Quantitative Polymerase Chain Reaction
Published on: November 1, 2018
07:06A Simple Flow Cytometry Based Assay to Determine In Vitro Antibody Dependent Enhancement of Dengue Virus Using Zika Virus Convalescent Serum
Published on: April 10, 2018
Related Concept Videos
Arboviral Encephalitis
Encephalitis l: Introduction
Encephalitis ll: Pathophysiology
Endocarditis II: Clinical Features of Infective Endocarditis
Viral Meningitis
Patterns of Fever