VisionMechanic.net is a growing collection of valuable videos, blogs, and courses related to human vision, and visual development and training.
Neurosensory Integration and the Visual Hierarchy Introduction “It has not been easy for the helping professions to conceive of human behavior as an expression of the brain, and they are still struggling to do so… The employing of neural mechanisms to enhance motor development is now well established; the current area of major growth and…
Measuring Vision in the Classroom The Need for a Common Standard Research in optometry and medicine has shown that the only way to determine whether a child has a sufficiently robust visual foundation is to assess very specific elements of visual health and function that represent potential obstacles to reading, and by extension, learning. The…
Defining Learning and Vision Therapy Optometric Vision Therapy / Visual Neuro-rehabilitation From Leonard Press “Applied Concepts in Vision Therapy”, (OEP Foundation www.oepf.org and through online retailers) “Optometric vision therapy (OVT) can be defined as the art and science of developing visual abilities to achieve optimal visual performance and comfort. During VT, patients gain greater understanding…
Visual Impediments to Learning The following is an article summarizing concerns with visual impediments to learning. The text was prepared by Dr. Charles Boulet (Education, Developmental Optometry) and Dr. Noëlla Piquette (PhD Psychology, Associate Professor, University of Lethbridge). The paper outlines the nature of the problem, and how unchecked vision has far reaching consequences on…
DOMD and FOMD Introduction For the purposes of this discussion, fine visuomotor control problems will be classified under two categories, developmental or functional. As a result, they are sometimes referred to as DOMD (Developmental Oculomotor Dysfunction), or FOMD (Functional Oculomotor Dysfunction), respectively. In either case, they are a reflection of a child’s (client’s) deficient level…
Defining Vision II This section continues from the previous discussions of visual anatomy and signal acquisition skills and abilities. First, we will look at Visual Signal Processing (Visual Information Processing, or simply Visual Perception) and see how once a signal is captured, it undergoes ‘parallel streamed’ processing in cortical and subcortical areas of the brain….
Refractive Errors and Glasses Prescriptions Eyesight Vs. Vision – A Behavioural Perspective To finish this introduction to vision, we will revisit the difference between eyesight and vision, and review basics of refractive error. This time, we’ll look at these conditions in a little more depth, and from primarily a behavioural perspective. Refractive error creates a…
Defining Vision Human Visual Development Review these brief notes on visual development before continuing: Click (opens new page). Elements of Vision Vision sits atop the developmental heap as the leader in efficiency in acquisition of information from the environment. We all share this ability: To scan the environment (provided our visual system is healthy) and…
Basics of Visual System Anatomy Introduction Vision is the ability to use our eyes to understand the physical world without touching it, and to use visual information for thinking and for calculating muscle movements. Vision relies upon one’s understanding of where the body is in space, how it is positioned, and where other objects are…
Vision has often been depicted as a ‘pyramid’, with core functions and systems arriving early in development (the ‘base’) and other more advanced behaviours and skills arriving afterwards, partly as a function of earlier development. The graphic representation is designed to illustrate not only the process of development and how the staged nature of human…