The macula retina is the outermost layer of the human retina and is the primary way we perceive color.
It is affected by macular degeneration and is characterized by a loss of the ability to form sharp white lines or to distinguish between light and dark.
It’s a loss that affects between 70% and 80% of all humans and about one-third of all cats, according to Dr. Stephen Ragan, a research scientist at the University of Washington.
A study published in the journal JAMA Psychiatry found that in macular retinal dystrophies, macular damage is accompanied by a dramatic decline in vision, and the condition is a particularly challenging one for the visually impaired.
“A cat can’t see anything except dark,” Ragan said.
“[They] have to use a whole bunch of different mechanisms to find things.
It’s like you can’t find your shoes in the woods, or your car keys in the car.
You have to get your cat to do that.”
In a survey of more than 2,000 cats, Ragan found that over half of the cats who had the macula degenerative disease were able to perceive color but could not distinguish dark from light, or between dark and light.
When a cat is diagnosed with macular dysplasia, Ragoan said that the cat may be able to distinguish colors through a combination of color vision, light-sensitive neurons, and chemical signals in the retina.
Ragoan told NBC News that macula dysplastic retinal diseases are caused by a mutation in the gene encoding a protein known as CREB.
CREB was first identified in humans in 2003 and has since been shown to play a role in many aspects of vision and behavior, including color vision.
This is the first study to identify a genetic risk factor for macular dystrophias in cats.
Researchers from the University at Buffalo have identified the gene mutation that causes macula dystropermatitis, and they have found that mutations in this gene are associated with a higher risk of developing the condition.
Cats with the mutated gene have an increased risk of macular disease and the study is the most comprehensive genetic study of its kind.
In order to determine if the gene mutations are associated, researchers tested a group of more to date cats and compared their vision with that of the control group.
The results were not what the researchers expected.
According to the study, the genetic risk of cat macula disease was 4.5 times higher in the mutated group.
Ragoen said the study may provide some hope that cats with this mutation could have a chance of overcoming their visual impairment.
As part of the study they also used a technique known as gene profiling to look at a number of genes involved in the development of the retina and the body.
There are also tests available to help diagnose macular disorders in cats, such as the Color Vision and Color Sensitivity Test (CVS-5), which tests a cat’s ability to see and differentiate color, and a visual-spatial test known as the Saccade Test.
Dr. Stephen S. Ragan of the University, University of Buffalo, speaks at a press conference at the American Association for the Advancement of Science (AAAS) 2017 meeting at the Newseum in Washington, D.C., U.S., October 19, 2017.
Image via The University at Bills Office of Scientific and Technological Research SOURCE NBC News