E-book version of ‘Applied Concepts in Vision Therapy’

E-book version of ‘Applied Concepts in Vision Therapy’

As you might have noticed lately, I've been studying and sharing many interesting passages from the book 'Applied Concepts in Vision Therapy' by Leonard Press. It's pretty darn awesome but it took me a long time before I was able to start reading it. I ordered the physical copy from OEPF years ago and only recently found a way to turn a book into an audio file: I scanned the book, had a program run text recognition on the images and then turned the text into an audio file. This cumbersome process allowed…Read more …
Redefining Amblyopia as disorder of vision development

Redefining Amblyopia as disorder of vision development

I am studying various chapters from the book "Applied Concepts in Vision Therapy" by Leonard Press. In this blog post I have compiled some of the most relevant and poignant quotes from chapter 7 called "Amblyopia: A Microcosm of Visual Disorders". "Various tacks of amblyopia research:  Conclusions of the Hubel and Wiesel research: form deprivation results in profound alterations of the total visual system. Practicioners should monitor amblyogenic factors (!) such as strabismus, uncompensated anisometriopia, high uncompensated isometropic defocus, organic defocus as a result of disease (cataract, glaucoma, ...), or iatrogenic defocus such…Read more …

“The Scarcity Trap: Why We Keep Digging When We’re Stuck In A Hole”

Here's an interesting NPR podcast about the psychological "scarcity trap": http://www.npr.org/2017/03/20/520587241/the-scarcity-trap-why-we-keep-digging-when-were-stuck-in-a-hole. When you're in need of something, your mind is enveloped by a kind of "tunnel vision" prompting you to solve short term problems in ways that are detrimental to long term success. This can apply to food, money, social contact, time, ... I personally have most experience with this issue in terms of functional vision skills scarcity. My underdeveloped binocular vision makes it harder to accomplish certain tasks so historically I used to double down on my cumbersome strabismic vision habits in order to solve…Read more …

“Our senses can’t learn under stress”

Having compromised sensory abilities can be very stressful and that in turn can impede rehabilitation or further development. Creating a climate of understanding conducive to sensory learning is thus of paramount importance. Read the entire article at: http://neurosciencenews.com/stress-learning-senses-5942/ "Stress is part of our everyday lives – while some thrive on it, it makes others sick. But what does stress do to our senses? When we train them, we can sharpen our senses thereby improve our perceptual performance. The stress hormone cortisol completely blocks this important ability. In the current issue of “Psychoneuroendocrinology” neuroscientists of…Read more …
The Hess Test: How does it work and why is it administered?

The Hess Test: How does it work and why is it administered?

The Hess Test involves anaglyph glasses and a grid attached to a wall or screen in front of the patient. The purpose of this test is to get an idea of whether or not the eyes align absent of any exterior reference points and thus without any compensation ability the patient might usually be employing. During the test the patient is wearing anaglyph glasses while watching the grid. Somewhere within the grid a red light will illuminate itself or will be projected by the clinical assistent. The patient has a green laser pointer…Read more …
Research: The Effects of Sports Vision Training on Binocular Vision Function in Female University Athletes

Research: The Effects of Sports Vision Training on Binocular Vision Function in Female University Athletes

An interesting piece of research, available on the website of the US National Institutes of Health, came to my attention recently. It was published in December, 2015. It is part of a growing body of research validating the efficacy of Vision Training. I'm posting it here because it also includes some practical exercises which might inspire you to try them yourself. If you are a strabismic, make sure the risk of double vision or other adverse side effects is under control by talking to a qualified Behavioral Optometrist. URL: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4723179/  The Effects of Sports Vision…Read more …
Audio-aided visual reading: a one year status report

Audio-aided visual reading: a one year status report

One year ago (September, 2015), I wrote about a new reading system I was implementing combining vision and audio support. It was a newly acquired skill which I could not do prior to that point in time. This reading combination takes the edge of gaze fixation and eye tracking while having a definite advantage over audio alone. I will repost some of that post down below because the remarks are still very relevant when it comes to understanding my vision problems and vision in general. In the meantime, I've been keeping some stats…Read more …
Cheiroscope: video, drawing samples and implications

Cheiroscope: video, drawing samples and implications

After a nice theoretical post, let's get down to the nitty gritty. How can we get a tangible look into how someone perceives his personal space? How can we determine inconsistent perception of space interfering with the construction of solid brain maps? As vision writes spatial equations for the muscles to solve, cheiroscopic drawing is an interesting way to gauge the state of ocular motor ability and spatial vision. During cheiroscopic drawing, one's visual system is completely stripped of contextual aids. Broader context often helps strabismics to get around and complete certain tasks…Read more …
The visual system’s important role in figuring out where you are

The visual system’s important role in figuring out where you are

Developmental strabismics often learn how to suppress sight coming through one eye. Many times they even learn how to alternate between both eyes. This is a useful short term neural adaptation but has many disadvantages in the long haul if not corrected. Having been, and to some extent still being, an alternator, I know how it works in practice and how it feels. If feels like you can shift between two ways of seeing. You are not only switching between your physical eyes but also between two viewing positions in your mind. You…Read more …
Mark B, strabismic pilot with eyes on the skies

Mark B, strabismic pilot with eyes on the skies

Around a year ago I met Mark B. through our DIY Vision Therapy Facebook group. Every so often he'd post a picture of a little airplane or an air field on his Facebook profile. I thought he must really like planes but since he was strabismic he probably doesn't fly them himself. Turns out I was wrong! MICHAEL: Hi Mark, where do you live and how old are you? MARK: I live in the Brittish midlands, in Redditch more specifically. That's just south of Birmingham. I'm 39 years old and will turn 40…Read more …