Related Experiment Video
Updated: Jan 24, 2026
07:23
Optimization of the Retinal Vein Occlusion Mouse Model to Limit Variability
Published on: August 6, 2021
3.2K
Secondary dengue retinitis with associated occlusive retinal vasculitis
Vikram Vinayak Koundanya1, Neha Chowdhary2, Manisha Agarwal2
1Vitreoretina Services, Dr. Shroff's Charity Eye Hospital, 5027-Kedar Nath Road, Daryaganj, New Delhi, 110002, India. vikramkoundanya@gmail.com.
Journal of Ophthalmic Inflammation and Infection
|May 18, 2019
Summary
Secondary dengue infection can cause vision-threatening retinitis. Early diagnosis using the IgG/IgM ratio and prompt treatment with corticosteroids can lead to successful outcomes in dengue retinitis cases.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Immunology
Background:
- Dengue is a prevalent tropical disease.
- Secondary dengue infections can trigger severe immunological responses, including antibody-dependent enhancement (ADE).
- ADE can lead to serious ocular complications such as retinitis.
Purpose of the Study:
- To report a case of secondary dengue retinitis.
- To highlight the clinical presentation and diagnostic methods for dengue retinitis.
- To demonstrate the efficacy of corticosteroid treatment for this condition.
Main Methods:
- Case report of a 42-year-old female patient.
- Diagnostic evaluation included patient history, clinical examination, IgG/IgM ratio assessment, and ELISA for dengue.
- Treatment involved oral corticosteroids.
Main Results:
- The patient was diagnosed with secondary dengue retinitis and retinal vasculitis.
- The diagnosis was confirmed by serological tests and clinical findings.
- Successful treatment was achieved with oral corticosteroids.
Conclusions:
- Secondary dengue infection can present as retinitis with retinal microvascular occlusions.
- A high index of suspicion and utilizing the IgG/IgM ratio are crucial for diagnosing dengue retinitis.
- Corticosteroids are an effective treatment option for secondary dengue retinitis.
Related Concept Videos
01:55Secondary Active Transport
137.4K
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme “pump” embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
137.4K
01:32Secondary Active Transport
9.4K
One example of how cells use the energy contained in electrochemical gradients is demonstrated by glucose transport into cells. The ion vital to this process is sodium (Na+), which is typically present in higher concentrations extracellularly than in the cytosol. Such a concentration difference is due, in part, to the action of an enzyme "pump" embedded in the cellular membrane that actively expels Na+ from a cell. Importantly, as this pump contributes to the high concentration of...
9.4K
01:11Secondary Healthcare System
2.0K
Secondary healthcare is offered by a specialist, generally in hospitals or clinics for patients referred by primary healthcare providers. It occurs when a person has an illness or injury that requires specific medical care. Secondary care is often referred to as acute care. Secondary care can range from uncomplicated care to repair a minor laceration or treat a strep throat infection to more complicated emergent care, such as treating a head injury sustained in an automobile accident. Whatever...
2.0K
03:02Primary and Secondary Growth in Roots and Shoots
60.3K
Vascular plants, which account for over 90% of the Earth’s vegetation, all undergo primary growth—which lengthens roots and shoots. Many land plants, notably woody plants, also undergo secondary growth—which thickens roots and shoots.
60.3K
01:25Secondary Distribution
564
Secondary distribution systems provide electrical energy at the utilization voltage levels from distribution transformers to customer meters. Typical secondary voltages in the United States include 120/240 V for residential use, 208Y/120 V for residential and commercial use, and 480Y/277 V for industrial and high-rise commercial use.
In residential areas, 120/240 V single-phase, three-wire service is commonly used for lighting, outlets, and large appliances. Urban areas with high-density loads...
In residential areas, 120/240 V single-phase, three-wire service is commonly used for lighting, outlets, and large appliances. Urban areas with high-density loads...
564
01:15Secondary Lymphoid Organs
9.0K
Secondary organs, including lymph nodes, the spleen, and mucosa-associated lymphoid tissue (MALT), work harmoniously to protect us from disease and infection.
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
9.0K