Related Experiment Video
Updated: Jul 12, 2026
04:36
An Assay to Detect Protection of the Retinal Vasculature from Diabetes-Related Death in Mice
Published on: January 12, 2024
Screening for and managing diabetic retinopathy: current approaches
1Department of Medicine, Division of Endocrinology, Mount Sinai School of Medicine, 35 E. 85th Street, New York, NY 10028-0954, USA. zbloomgard@aol.com
Summary
Diabetic retinopathy can cause vision loss through vascular leakage or ischemia. Early screening, managing blood glucose and blood pressure, and treatments like laser photocoagulation are key to preventing vision impairment.
Area of Science:
- Ophthalmology
- Endocrinology
- Diabetology
Background:
- Diabetic retinopathy is a leading cause of vision impairment and blindness.
- Chronic hyperglycemia damages retinal capillaries through biochemical pathways.
- Vision loss results from vascular leakage or ischemia in the retina.
Purpose of the Study:
- To describe the anatomy of the eye and diabetic retinopathy.
- To outline the pathogenesis, clinical features, and prevalence of vision impairment.
- To address screening, risk factors, and treatment of diabetic retinopathy.
Main Methods:
- Review of the anatomy, pathogenesis, clinical features, and prevalence of diabetic retinopathy.
- Discussion of screening guidelines and modifiable risk factors.
- Overview of therapeutic interventions including medical management, laser photocoagulation, and surgery.
Main Results:
- Diabetic retinopathy involves damage to retinal capillaries linked to hyperglycemia.
- Vision impairment is more common and less correctable in elderly patients.
- Modifiable risk factors include A1C, hypertension, smoking, and dyslipidemia.
Conclusions:
- Tight control of blood glucose and blood pressure reduces risk and progression.
- Screening is crucial for early detection and intervention.
- Laser photocoagulation and intraocular surgery are effective treatments for advanced disease.
Related Concept Videos
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...
01:15Diabetes: Management and Pharmacotherapy
The therapy for diabetes aims to alleviate hyperglycemia-related symptoms, prevent acute metabolic decompensation, and reduce chronic end-organ complications. Glycemic control is evaluated through short-term (self-monitoring, continuous glucose monitoring) and long-term (A1c, fructosamine) metrics, enabling near real-time tracking of blood glucose levels and reflecting glycemic control over specific time frames.
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
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...
01:25Type II Diabetes Mellitus III: Clinical Manifestations and Diagnosis
Type 2 diabetes mellitus develops gradually and is often asymptomatic in early stages.Clinical ManifestationsWhen symptoms appear, they include fatigue, blurred vision, pruritus, delayed wound healing, and recurrent infections, particularly candidal infections. Peripheral neuropathy may present as numbness or tingling in the extremities. Classic hyperglycemia symptoms—polyuria, polydipsia, and polyphagia—are less common. Most patients are overweight and frequently have associated hypertension...
01:28Angle Closure Glaucoma: Treatment
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
01:22Diabetes Mellitus: Type 2 and Gestational
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...