And, now, Dr. EYEnstein’s home turf: Research!
We have published and continue to research and work to publish in
areas of binocularity. Dr. Hussey has
gone past 30 papers published, almost entirely in peer-reviewed journals. PDFs of those papers are here for reading and
downloading. Always remember that the
papers are aimed at a professional audience, so they may not be written in the
most reader-friendly way.
Also in this area are some videos either from our research with
Eyetronix, or some videos Dr. Hussey made to explain problems with binocular
vision in a more friendly video format.
In addition, one of the major instrument manufacturers asked Dr. Hussey
to provide case studies using the hand-held retina photo device we use. That was a nice diversion.
Dr. Hussey has consulted with or is consulting with Eyetronix, PinpointEyes (Hyperion Labs), and Luminopia, but is not a paid consultant.
Standard clinical treatment methods for amblyopia penalize the non- amblyopic eye, with subsequent compliance problems, and do not address the associated binocular vision abnormality.
Idealized or “thought” experiments can be used to investigate theoretical principles. The present idealized experiment uses a neurological rheostat to decrease magnocellular signal in an otherwise visu- ally normal subject to probe for possible consequences of the magnocellular impairment that is often linked to reading problems (dyslexia).
Current visual sensory theory focuses on the dual pathway nature of the visual sys- tem. Two pathways carry information from the eye to the brain, the parvocellular (detail and color) and magnocellular (motion) pathways. The magnocellular pathway has been implicated as a cause of dyslexia. Clinically, intermittent central suppression has been shown to be associated with reading problems.
Both magnocellular pathway defects and intermittent central suppression show links to dyslexia. The prior paper suggested a theory of intermittent central suppression based on a magnocellular pathway defect. This paper expands on that theory and suggests some further implications particularly for reading, amblyopia and the need for further research.
Do two eyes have any intrinsic advantage over one eye for combat marksmanship? Intuitively, having two eyes work together (binocularity) seems beneficial.
Early or congenital cataract is typically treated with early surgery, commonly without pseudophakic implants. Surgery is o9en followed with patching and optical correction, including extended wear contact lenses. Some level of amblyopia is expected to persist depending on how early surgery is performed and what post- surgical therapies are accomplished.
To evaluate compliance and quality of life with a novel technique for amblyopia treatment (Eyetronix Flicker Glass, EFG) in a group of children who had been previously and unsuccessfully treated by patching.
Intermittent central suppression (ICS), an intermittent loss of central visual sensation, has been associated with reading problems.
Amblyopia is a neurological development disorder that presents with deficits in spatiotemporal vision processing resulting from an active suppression process.
Whiplash cervical trauma has been shown to cause visual changes. Intermittent central suppression (ICS) has been shown to be associated with reading problems.
Seth, a 16-year-old male student-athlete, suffered a concussion during trail riding in 2014 when his bike came apart during a jump. The patient’s occupational therapist referred him for a vision examination and therapy following vestibular therapy. Unresolved post-concussion symptoms included headaches, problems seeing the ball in sports, and reading problems reminiscent of “dyslexia.”
Much work has been done searching for a link between vision problems and reading problems. Certainly, a strong case can be made that ocular motor malfunctions can affect reading efficiency.
Vision science defines the fundamental action of the vision system to be the generation of visible percepts. Intermittent central suppression (ICS) is an intermittent, usually alternating, loss of visual sensation, a repetitive loss of that visual percept.
Imagine going to school for eleven years not being able to read;
Problems with cell phone signals getting to my new iPhone 7 provide an analogy for one of the primary sensory defects vision therapy can deal with, suppression and intermittent central suppression in particular.