Related Experiment Video
Updated: Jul 25, 2026
09:28
Oxygen-Induced Retinopathy Model for Ischemic Retinal Diseases in Rodents
Published on: September 16, 2020
Retinopathy associated with high-dose interferon alfa-2b therapy
C Hejny1, P Sternberg, D H Lawson
1Department of Ophthalmology, Emory Eye Center and Emory University School of Medicine, Atlanta, Georgia 30322, USA.
American Journal of Ophthalmology
|June 1, 2001
Summary
High-dose interferon alfa-2b therapy for melanoma can cause retinopathy, potentially leading to vision loss. Patients require monitoring for this side effect, especially with higher treatment dosages.
Area of Science:
- Ophthalmology
- Oncology
- Pharmacology
Background:
- High-dose interferon alfa-2b is used for adjuvant treatment of high-risk melanoma.
- Ocular side effects of this therapy require further investigation.
Observation:
- Seven patients receiving high-dose interferon alfa-2b developed retinopathy.
- Retinopathy presented with cotton-wool spots and/or retinal hemorrhages.
- Two patients experienced severe vision loss, while five had resolution after treatment cessation.
Findings:
- Interferon alfa-2b therapy is associated with an increased risk of retinopathy.
- Higher dosages of interferon alfa-2b may correlate with a greater risk.
- Severe vision loss is a potential complication of this retinopathy.
Implications:
- Patients undergoing interferon alfa-2b therapy need regular ocular monitoring.
- Early detection and treatment cessation may prevent severe vision loss.
- The role of co-administered medications like paroxetine in retinopathy incidence is unclear and warrants further study.
Related Concept Videos
01:27Open Angle Glaucoma: Treatment
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
01:26Nephrotic Syndrome II : Assessment and Medical Management
IntroductionNephrotic syndrome is a kidney disorder marked by excessive protein loss in the urine, leading to various systemic complications. This condition often results from damage to the glomeruli—the kidney's filtering units—causing proteinuria, low blood protein levels, and fluid retention. Understanding the assessment, diagnosis, and management of nephrotic syndrome is essential for effective treatment and prevention of further kidney damage.AssessmentPatient History: Document any history...
01:30Inhibitors of Viral Protein Synthesis
Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
01:24Type II Diabetes II: Pathophysiology
PathophysiologyType 2 diabetes mellitus (T2DM ) is a chronic metabolic disorder characterized by insulin resistance and progressive pancreatic β-cell dysfunction, leading to impaired glucose homeostasis. It results from interactions among genetic predisposition, environmental factors, and metabolic stressors, such as overnutrition and a sedentary lifestyle.Insulin Resistance and Glucose DysregulationEarly T2DM involves insulin resistance in skeletal muscle, adipose tissue, and the liver.
01:27Diabetic Retinopathy
DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
01:28Diabetic Nephropathy
Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration occur due to afferent arteriolar...