Fatty acid found in fish prevents age-related vision loss

An omega-3 fatty acid found in fish, known as DHA, prevented age-related vision loss in lab tests, demonstrates recently published medical research from the University of Alberta.

Faculty of Medicine & Dentistry researcher Yves Sauve and his team discovered lab models fed DHA did not accumulate a toxic molecule at the back of the eyes. The toxin normally builds up in the retina with age and causes .

"This discovery could result in a very broad therapeutic use," says Sauve, whose work was recently published in the peer-reviewed journal Investigative Ophthalmology & Visual Science.

"In normal aging, this toxin increases two-fold as we age. But in , there was no increase in this toxin whatsoever. This has never been demonstrated before – that supplementing the diet with DHA could make this kind of difference."

The team recently started another study, looking at people who have age-related macular degeneration (AMD), a condition that results in the loss of central vision and is the main cause of blindness in those over the age of 50. The researchers will look for DNA markers in the blood of study participants. The team wants to determine if participants with certain genetic markers will respond better to increasing amounts of DHA in their diet and if so, why.

add to favorites email to friend print save as pdf

Related Stories

Low levels of omega-3 fatty acids may cause memory problems

Feb 27, 2012

A diet lacking in omega-3 fatty acids, nutrients commonly found in fish, may cause your brain to age faster and lose some of its memory and thinking abilities, according to a study published in the February 28, 2012, print ...

Recommended for you

Training can improve visual field losses from glaucoma

Apr 17, 2014

(HealthDay)—Visual field loss from glaucoma is in part reversible by behavioral, computer-based, online controlled vision training, according to a study published in the April issue of JAMA Ophthalmology.

Fewer ophthalmologists equals less diabetic eye care

Apr 15, 2014

(HealthDay)—In areas with less access to ophthalmologists, fewer individuals with diabetes, diabetic retinopathy, and age-related macular degeneration (ARMD) receive care, according to a study published ...

User comments

Adjust slider to filter visible comments by rank

Display comments: newest first

tadchem
5 / 5 (1) May 30, 2012
Name that toxin!