Diabetic Retinopathy News and Research

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In the initial stages, people with diabetic retinopathy may not notice their vision changing. Diabetics sometimes experience rapid changes in blood sugar that can temporarily cause blurry vision even when retinopathy is not present. If a person notices a few specks or spots floating in his visual field, this may mean he has developed proliferative diabetic retinopathy, the growth of abnormal new blood vessels on the retina and optic nerve. High blood sugar levels have been linked in studies to retinal blood vessel abnormalities. Blurred vision may occur when the macula--the small area at the center of the retina--swells as it fills with fluid that has leaked from retinal blood vessels. Because damage to the eye often develops slowly, early detection of diabetes and control of blood sugar through diet and medications can make a crucial difference in saving vision.

Effective diabetic retinopathy treatments include laser photocoagulation for early to moderate stages and a microsurgery called vitrectomy for repair of eyes with extensive damage. Injectable and oral medications that act on abnormal blood vessels to control diabetic retinopathy before vision loss occurs are now in development. Early detection would be key to the effectiveness of these treatments, also.

New drug helps diabetics keep their sight

Trials of an experimental drug which helps slow down the loss of vision caused by diabetes have had very optimistic results.

12 Jun 2006

New MIT designed device allows visually challenged to access Internet

An MIT poet has developed a small, relatively inexpensive "seeing machine" that can allow people who are blind, or visually challenged like her, to access the Internet, view the face of a friend, "previsit" unfamiliar buildings and more.

1 Jun 2006

Statins may improve circulation in the eye

The cholesterol-lowering medications known as statins may improve circulation in the eye, potentially reducing the risk of certain eye diseases, according to a study in the May issue of Archives of Ophthalmology.

9 May 2006

New insight into the way an embryonic retina cell develops

The discovery provides a new vantage point for understanding how a healthy visual system develops. It also raises the possibility of re-directing the production of cell types as needed to stave off eye disease.

9 May 2006

Compound found in marijuana may defend against diabetic retinopathy

A compound found in marijuana won't make you high but it may help keep your eyes healthy if you're a diabetic, researchers say.

1 Mar 2006

Aston Academy investigates macular oedema

Aston Academy of Life Sciences, the clinical research hospital of Aston University, has recently been commissioned to assess the efficacy and safety of a specialist drug, Posurdex (Allergan Ltd, UK), which is used in the treatment of patients who suffer from a sight threatening condition, called macular oedema.

26 Jan 2006

University of Florida researchers restore vitality to cells in lab experiments

University of Florida researchers say primitive cells that act like molecular maintenance men - traveling throughout the body to repair damaged blood vessels - become too rigid to move in patients with diabetes, fueling the disease's vascular complications.

25 Jan 2006

Immune cells known as macrophages linked to growth of lymph vessels in eyes,

Scientists at Schepens Eye Research Institute have discovered that a particular immune cell contributes to the growth of new lymph vessels, which aid in healing. This cell, known as a macrophage, is called in by the body during the wound healing process.

6 Sep 2005

New compound ruboxistaurin may decrease vision loss in diabete

A multicenter international study chaired by a Joslin Diabetes Center investigator and reported in the July issue of the American Diabetes Association's journal Diabetes brings hopeful news to the 18 million people in the United States -- and millions more worldwide -- with type 1 or type 2 diabetes.

15 Jul 2005

Sirna Therapeutics granted new UK patents

Sirna Therapeutics has announced that the United Kingdom (UK) Patent Office has granted the Company two additional short interfering RNA (siRNA) target patents. The first patent covers any siRNA with one or more chemical modifications targeting Vascular Endothelial Growth Factor (VEGF).

12 Jul 2005

Ruboxistaurin shows favorable effects on kidney damage and function in people with type 2 diabetes and nephropathy

Eli Lilly and Company today announced encouraging results from a one-year pilot study examining the effect of ruboxistaurin mesylate in persons with type 2 diabetes and kidney disease (also known as "diabetic nephropathy").

12 Jun 2005

Patients with newly diagnosed type 2 diabetes should be screened for retinopathy

Diabetic retinopathy has been found in nearly 8 percent of pre-diabetic participants in the Diabetes Prevention Program (DPP), according to a report presented today at the American Diabetes Association's 65th Annual Scientific Sessions.

12 Jun 2005

New approach to inhibiting blood vessel growth or angiogenesis

A manmade protein with a tail of amino acids delivered to target cells can dramatically reduce blood vessel growth that obstructs vision or feeds a tumor, researchers have found.

31 May 2005

Common antibiotic called minocycline may slow or prevent diabetic retinopathy

The team found that minocycline, often used to treat acne, limits by about 50 percent the retinal damage caused by microglia. Microglia are cells that act as the "cleanup crew" for the Central Nervous System (CNS).

11 May 2005

Older adults with diabetes in managed care networks have higher rates of untreated eye disease

Medicare beneficiaries at high risk for eye disease due to diabetes are more likely to have unrecognized and untreated eye disease if they are enrolled in managed care than if they have fee-for-service (FFS) health insurance, according to an article in the May issue of Archives of Ophthalmology.

9 May 2005

Internet may help prevent blindness in Medicaid patients with diabetes

A Wake Forest University Baptist Medical Center team is launching a high-tech study to determine if early screening using a special camera and images transmitted over the Internet can prevent blindness in Medicaid patients with diabetes.

4 May 2005

Oak Ridge technology used to understand semiconductor defects helps people at risk of becoming blind

Millions of people at risk of becoming blind could one day be helped by an Oak Ridge National Laboratory technology originally intended to understand semiconductor defects.

10 Feb 2005

Pegaptanib (Macugen) is an effective treatment for neovascular age-related macular degeneration

Results from two concurrent, prospective, double-blind, multi-center clinical trials show that pegaptanib (Macugen), an anti-vascular endothelial growth factor therapy, is an effective treatment for neovascular age-related macular degeneration (AMD), according to a paper in the Dec. 30 issue of the New England Journal of Medicine. Macugen was approved by the Food and Drug Administration on Dec. 17.

30 Dec 2004

Stem cells can preserve and improve vision in eyes damaged by retinal disease

"These findings hold great promise for potential treatments for people suffering from macular degeneration, diabetic retinopathy and other retinal diseases," says Michael Young, PhD, an assistant scientist at Schepens Eye Research Institute and the lead author of the study.

18 Nov 2004

Patients with type 2 diabetes and hypertension who kept their blood pressure very tightly controlled had fewer eye disorders caused by their diabetes

According to the article, type 2 diabetes and hypertension are often associated. At age 40, approximately 32 percent of patients with type 2 diabetes are also hypertensive, and that proportion increases to 47 percent by age 60, the article states.

8 Nov 2004