Good Lifestyle

While the eyes are known to be expressive - think of "puppy eyes" with puppy "or" sparkling of happiness " - they can also reveal a lot about what is happeningwith our health. Not only do our eyes allow us to see about 200 degrees in all directions and to distinguish millions of colors, but thanks to their direct link with our brain, they can provide important clues to our cognitive functioning.

"More than 70% of your brain is involved in the vision, and 80% of all the sensory information runs through your eyes, so that your eyes and your retinal health have intrinsically clues to the neurological function," saidRobert Layman, MD, a practicing optometrist and president ofAmerican optometric association (AOA). "In many neurological diseases, eyes are often the first site to show a disorder."

Read the rest to discover the symptoms to watch - and when it's time to call your doctor.

Read this then:Maria Menounos says it was the first symptom of her brain tumor.

The blurred vision is caused by a number of different problems, and many of them are easily treated. Maybe you need a new prescription of glasses, or your office is right next to an air conditioner that blows air in your eyes all day,Dry them. But other reasons for blurred vision are much more serious. "The blurred vision can result from many causes, in particular unreformed refractive errors, dysfunction of binocular vision, eye and systemic diseases and fatal or fatal conditions such as brain tumors," warns the layman.AE0FCC31AE342FD3A1346EBB1F342FCB

Another serious potential cause of blurred vision is multiple sclerosis (MS). "The disease causes inflammation along the nerve that connects your eyes to your brain, called the optic nerve," according to webmd. "This causes a condition calledoptical neuritis, which can give you a blurred view, color vision loss and pain when you move your eyes. "This can often happen in one eye and can be accompanied by other symptoms such as fatigue, dizziness and the feeling of steep or weakness.

It is a cliché of cartoons that when you hit your head, you see stars. But in real life, too, visual symptoms are a common sign ofa brain injury. "Eighty percent of patients with traumatic brain lesions, such as a concussion, will suffer visual symptoms," said Laïque. "Symptoms are not always perceptible, but may include a double vision, a poor eye -to -eye monitoring capacity, difficulties with a look quickly from one point to another, blurred near the vision, dazzling orLight sensitivityand eye fatigue. ""

Layman says it is important to be checked by a health professional when you maintain a type of head trauma, also minor. "Even light brain lesions can have a drastic impact on your vision, and only a specialist in formed eye care can diagnose and process visiting from vision," he explains.

"Eyes contain elements of the peripheral nervous system, with an eye movement based on the shooting and wiring of the cranial nerves," explains Layman. "They therefore contain a lot of information concerning systemic and neurological health." In other words, your eyes can tell you a lot about the health of your whole body, including your brain.

When the vision loss occurs, it can report a problem asA detached retina, according to the Moffitt Cancer Center, but it could also be a symptom of abrain tumour: "If a brain tumor exerts sufficient pressure on the optic nerve, blindness can occur," say their experts. "For many patients, the loss of vision is progressive, starting with a blurred vision, a double vision or an increasing blind spot. As the tumor grows, it will compress the optic nerve, causing greater loss of vision."

RELATED:For more up-to-date information, register for our daily newsletter.

When we see something from the corner of the eye, we use our peripheral vision. And certain vision changes, including the decrease in peripheral vision, can beA sign of Alzheimer's disease.

"Many people with Alzheimer's disease can have aalteration of critical vision Where there is nothing physically bad with their eyes, but the brain does not fully treat visual information, "Kendra Farrow , Research and training partner at the National Research and Training Center (NRTC) of the Mississippi State University, told Alzheimer's Foundation of America (AFA). "The brain cannot interpret what is seen," she explains. Farrow describes this condition as being similar to "look through a tube" and be unable to see not only things that are on the side of your vision, but also at the top or bottom.

If you feel changes in your peripheral vision or other changes in your sight that concerns you, make an appointment to talk to your doctor as soon as possible.

Read this then: The "crazy" way that Mark Ruffalo discovered that he had a brain tumor .