VISUAL NEUROSCIENCE

The fact that vision seems so effortless belies the complexity of the visual process.

The term vision refers to the complex of eye and brain.  It is this complex which guides a broad spectrum of human abilities.

The retina is a thin sheet of brain tissue in the eyes.  It is the place where the brain first encounters light.  Signals travel back-and-forth between the eyes and the rest of the brain.   Visual processing involves several major sub-cortical centers plus a mosaic of dozens of distinct areas in the cerebral cortex.  It is currently acknowledged that vision is the result of parallel, distributed processing in multiple areas and through multiple pathways.  For example, information gathered by the retina about color is processed in a different area of the brain than information about movement.

As another example, ego centric direction describes the perceived location of an object compared to our body.   This is derived from a combination of oculocentric direction (where our eyes are aimed), position of the eyes in the head, and the head's position relative to the body.  The brain uses a reference point midway between the two eyes, known as the egocenter to compute egocentric direction.  Enabling the brian to engage a whole body experience, bionocular vision is an intricate organization of biologic and psychologic components.

The majority of nerve cells from the retina project to the visual cortex.  However, at least ten percent of the nerve cells take a different pathway stimulating areas of the brain stem dedicated to functions that seem remote to vision, when vision is narrowly defined.  The existence of extensive sensory motor pathways supports a broader conceptualization of vision, integrating functions such as balance and visual-auditory localization.

Information from neuroimaging and insights from cognitive neuroscience demand a significant reformulation of the understanding of vision.  Vision occurs neither in the eyes or the brian, but emerges from the collaboration of the eyes and the rest of the brain.  Vision is a pervasive aspect of our existence which permeates all of our activities.  Vision develops and, due to neural plasticity, can be enhanced.  Developmental optometry is the discipline dedicated to the care of all aspects of the visual process.

As surely as the old system (for explaining vision) considered that the problem of knowledge and understanding could be separated from the problem of seeing, so the present one will find it increasingly difficult to draw a dividing line between the two.

Improvement Starts Here

With over 25 years of proven success, you can trust Advanced Vision Therapy Center to provide the care you need.

Our Clinical Director is Idaho's only residency trained optometrist in vision therapy and neuro-optometry and is a Fellow of the American Academy of Optometry.  His residency at University of California, Berkeley means he has the expertise and experience to treat even the most complex cases.

Read what our patients have to say.

Blog
  At Advanced Vision Therapy Center our results speak for themselves. Jonah, however, wanted to share his story with you. We invite you to watch this short video to learn more about Jonah's experience and success.   ... Read More
  It's a dangerous world we live in today! With October upon us, people are thinking about spooky, creepy crawly things, and of course things that go bump in the night. Most ghoul hunters know that to protect themselves from the evil lurking in the shadows this time of year, they need the necessities such as garlic, silver bullets, a cross...you know, for protection.     ... Read More
  Traumatic Brain Injury (TBI) is a term used within the medical community to describe an injury to the brain which is not hereditary, congenital or degenerative. Traumatic Brain Injury can be result from a blow to the head, whiplash, seizure disorders, tumors, stroke, toxic exposure, or infectious diseases to name a few. The incidence of prevalence of brain injury outnumbers breast cancer, spinal cord injury, multiple sclerosis and HIV/AIDs combined.   ... Read More
  Many people have heard of vision therapy, but don't know a lot about it. As with any type of therapy, the effectiveness of the program is dependent upon several factors. It is advisable to ask questions and do your homework. Vision therapy programs vary greatly from provider to provider.   ... Read More
  Everyday in our schools students are presented with information that they are required to look at, interpret, and process that information. For years it was believed that the eyes had nothing to do with learning. That is definitely not the case. Did you know it is estimated that 80% of what we learn is through visual information?     ... Read More
  Convergence Insufficiency (CI) is a common eye-teaming problem which occurs when the eyes are unable to maintain the ocular posture necessary for reading or near tasks. Convergence Insufficiency results from misalignment of the eyes when focusing on up close, such as when reading. The eyes have a strong tendency to drift outward when reading or doing close up work. The exact cause is unknown.    ... Read More
  After this abnormally tedious Boise winter, we are all ready to get outside and play in the sun! Hold on though, before you rush outside, have you taken the necessary precautions to protect yourself for ultraviolet rays? There are three types of ultraviolet rays, these wavelengths are not visible to the human eye and are shorter than violet wavelengths of light.    ... Read More
  Whether you are playing sports as a hobby or competitively there is a lot to consider. Are you using proper form? Is your equipment up to date? Are you warmed up? Are you wearing the appropriate safety gear? Is your opponent looking bigger and stronger than last time? Seriously, did he grow six inches? Whatever your thought process or preparation is you may be missing a key step. Are you wearing your protective eye-wear?   ... Read More
  Eye tracking, also referred to as visual tracking, is the ability of one's eyes to ?track? from left to right in an efficient manner, and ?follow? the movement of objects. Eye movements should be smooth and consistent, with the ability to be completed quickly.    ... Read More
  As children with undetected vision problems continue year after year, frustration with academic activities can be observed in behavior.  ... Read More
Contact Us

7960 W. Rifleman Street, #155
Boise , Idaho , 83704 USA
Phone:  208-377-1310
Fax:  208-321-1952