What is Visual Crowding?

Flying in an ointment is visual crowding of the visual system, and indeed, many people do not understand their visual system and how it works. Most people believe that clear objections mean that their visual systems are perfect if they can see the world, but the flying ointment is the visual crowding of the visual system. What is visual congestion? Why is it important in our vision system? How does it work? Can you avoid it? We can get the following answers. According to D. visual crowd

Congestion is defined as when objects are too close together and their features are mixed (Pelli and Tillman, 2008). Therefore, congestion weakens the ability to identify objects at insufficient intervals, which can reduce vision (Levi, 2008). I do not yet know why congestion will occur, but it seems that neurons will converge. The brain mechanism responsible for recognizing characters (and other objects) in peripheral vision must be concentrated in many spatial locations. Therefore, when extra characters are displayed in the same area as the target, all the characters are mixed in the brain. Understanding the concept of congestion is important as it may be important for studies of age-related macular degeneration (AMD), amblyopia, and dyslexia (Levi, 2008).

The degree of visual impairment varies. Due to distortion or blurring of macular degeneration or diabetic retinopathy, the vision of low vision people may be blurred by cataracts, blurred or partially blurred in the central vision area. The main causes of low vision are eye diseases such as macular degeneration, glaucoma, diabetic retinopathy. However, low vision may also be caused by eye or brain damage. People with amblyopia are not blinded because they have useful eyesight but routine tasks such as reading and driving may be difficult or impossible depending on the degree of visual impairment. Both children and adults may have vision disorders, but low vision is a problem that plagues elderly people.

Visual or visual as sense is primarily related to the eyes, but in reality, visual is the product of a complex system whose eyes are only a part of it. Visual information processing - visual stimuli through the eyes, interpret them through the centers of the various brains, convert them to visual image perception, and associate these perceptions with concepts and languages ​​with maximum It is estimated to involve 40% of the brain. When this process is interrupted, the visual system of the brain can not consistently describe or understand what the eyes are seeing, resulting in vision impairment.