Absolute scotoma

*Do you know what a scotoma is?*

What is scotoma

As you already know, a person has two eyes, located at a short distance from each other. Each eye receives its own information about our world and can see in its own space. Together, two eyes can only see part of what is around us. Information common to the eyes that both eyes do not see is defined as a scotoma, so a person, or any other biological individual, has a small blind spot through which light passes and does not reach the retina.

Scotomas and why it's important

1. If you have good lighting Sometimes people say, “I'm blinded by this light when I walk inside.” This is because the location where their eyes are is not connected to the bright light that provides vision. The eyes are placed slightly lower and cannot see very bright things that can cause you to go blind. This also explains why children mostly grow up under bright lights and have a certain level of brightness adaptation that allows them to "get used to" brighter things later in life.

Absolute scotoma is an eye disease in which a person cannot see small objects up close. Scotoma can also be called areas of the visual field in the form of dark spots or nebula. Why it occurs and how to cope with it, says neurologist, associate professor of the department of nervous diseases and neurosurgery of KSMU Artem Ivanov. Scotoma - a defect in the central part of the retina

The area of ​​the retina in which light-sensitive receptors do not function is called a lesion. But there are different types of scotomas, and each of them has its own origin. In some people, areas of the retina in the periphery have a non-standard arrangement of cones, so the areas with “patches” of red-sensitive sensors are very close to each other - only one degree. As a result, when they see a red ball (light stimulus), they perceive it not at the point in space closest to them, but closer - at the very limit of the field of vision. This scotoma is called paracentral, and it can only be found by a simple test on paper, placing five matches on it. Paracentral scotoma creates the impression of a luminous spot in the retinal area.