Category: vsa

Astigmatism – A Primer

Astigmatism – A silent and invisible thief. No one should expect parents to understand how vision works, let alone how this might affect their children – even though they might observe very clearly the effects of significant visual impediments. Astigmatism,…

Environmental Causes of Astigmatism

A collection of readings re: the effects of posture on astigmatism. http://www.oepf.org/sites/default/files/Symphony%20Article_1.pdf Forrest-a new model of functional astigmatism Forrest-Astig as fx of visual scan, head scan, posture Forrest-eye scan therapy for astigmatism The_Effect_of_Accommodation_on_Ocular_Shape-Mutti  

VILD Notes and Symptom Checklist

The attached notes and checklist are for sharing and information purposes. The Notes section offers general information about the nature of human visual function, and the Symptoms and Signs Checklist is a survey to help characterize the nature of possible…

Risk Assessment: Quick Dx

  Introduction – As a species, I doubt we evolved specifically to end up using computers, smart devices, and other sustained near-point activities. The signs of visual strain are common, but often go undetected or ignored. Use this tool to do a…

Tinted Lenses and Dyslexia

I appreciate when teachers and parents ask about tinted lenses as a possible solution for dyslexia – this tells me there is an acknowledgement of the role of vision in reading and learning. People will sometimes ask about ‘Irlen’ lenses.…

Power On Self Test and Learning

When you start a computer, a regular and predictable sequence occurs. It happens this way, all the time, every time you turn it on. First, the power goes on (in people, either the power is on, or off, you can’t…

Ocular Motility and Dyslexia

There is no question that ‘dyslexics’ almost always have difficulty controlling the fine eye movements required for reading. While this does not cause dyslexia, troubled eye movement control is frequently the cause of other difficulties in reading. In either case,…

Reading Instruction

  There are many ways to teach language. Depending on the developmental age and capacity of the child, different techniques will be more appropriate. Sometimes the last thing you want to do is ‘push’ language, and to engage in less…

Archie’s Law

ArchiesLaw.com is a new site established specifically to promote early assessment and intervention for all children before they reach Grade 1. The ‘Law’ is that there should be mandatory assessment of vision (not just ‘eyesight’) for all children, for many…

On Dyslexia, VSA, and VSP

  On Dyslexia, VSA (Visual Signal Acquisition), and VSP (Visual Signal Processing) Dyslexia (SRD) is an example of a disorder that is symptomatic of a more fundamental and profound neurological problem. It involves elements of dysfunctional visual signal acquisition and…