Visual Processing Disorder

Visual processing disorder (VPD) is a neurological condition in which the brain has trouble interpreting and making sense of visual information received from the eyes, despite clear eyesight. Visual-processing challenges are about function: how you take in, interpret, and act upon the world around you. These difficulties commonly go overlooked, even in conventional eye exams, because standard tests usually focus on acuity.

Visual Processing Disorder Articles

MTHFR Mutation

The MTHFR Gene Mutation and Methylation

What Is MTHFR? MTHFR is a common genetic “mutation” with two primary variants: C677T and A1298C. If you get two copies of one variant, you are called homozygous; just one copy makes you heterozygous. People with a mutation have at ... Read More
Spelling to Communicate (S2C)

Spelling to Communicate (S2C)

This blog post about Spelling to Communicate (S2C) is excerpted and amended by Patricia Lemer from the Vietnamese version of her award-winning book, Outsmarting Autism, Updated and Expanded: Build Healthy Foundations for Communication, Socialization, and Behavior at All Ages. Background ... Read More
Jeremiah’s Unexpected Visual-Processing Challenges

Jeremiah’s Unexpected Visual-Processing Challenges

Baseline Assessments As part of the FLIGHT Study’s baseline assessments, Jeremiah had initial evaluations by a functional dentist, an occupational therapist who assesses reflex integration, a neurofeedback practitioner, and a developmental optometrist, among others. Some of these assessments might sound a bit unusual at ... Read More
Prism Lenses

Prism Lenses

In this blog post, Patricia S. Lemer explains why prism lenses can be powerful temporary tools for kids with autism, ADHD and LD because they alter neural processing of the brain. What Are Prism Lenses? The use of prism lenses ... Read More
Learning-Related Vision Problems

Learning-Related Vision Problems

In this blog post, Patricia Lemer MEd LPC explains what learning-related vision problems are and how to correct them. An estimated 25% of school-age children have learning-related vision problems. Students can have difficulties in any of a number of areas ... Read More
Vision Affects Behavior

Vision Affects Behavior

Difficult behaviors can potentially be changed by improving vision, but most people don’t know that vision affects behavior, attention, learning and processing. They should, however, because the brains of children with autism, ADD/ADHD, Sensory Processing Disorder and learning disabilities prevent ... Read More
Lenses and Prisms

Lenses and Prisms

Conditions for Which Lenses and Prisms May Be Prescribed Developmental optometrists, also known as behavioral optometrists (OD), can correct the following visual dysfunctions with therapeutic lenses and prisms: Climbing to great heights without a sense of awareness and danger Feeling ... Read More
Nonverbal Learning Disability

Nonverbal Learning Disability

In this blog post, Patricia S. Lemer describes what a nonverbal learning disability is and what to do about it. What Is a Nonverbal Learning Disability? First appearing in the literature in the late sixties, when I was finishing graduate ... Read More

Visual Processing Disorder Expert Interviews

Vision Therapy for Autism, ADHD, SPD and Learning Disabilities with Lynn Hellerstein OD FCOVD FAAO
The Hidden Link Between Vision and Learning with Wendy Beth Rosen

Visual Processing Disorder Stories

Noah: Recovery from ADHD, ADD, PANS:PANDAS, OCD, ODD

Noah’s Healing from ADHD, ADD, PANS/PANDAS, OCD, ODD

I am writing this recovery story in the hopes it reaches other parents and guardians of children diagnosed with ADD, ADHD, PANS/PANDAS, OCD, ODD, etc. who felt as I did: desperate, hopeless, and terrified. My seven year old had all ... Read More
Romy - Healed from Lyme Disease, OCD and PANS/PANDAS

Romy – Healed from Lyme Disease, OCD and PANS/PANDAS

Diagnosed at seven years old, Romy has healed from chronic Lyme disease. She pretty much lives a typical teenage life. Amazing from where she started. Healing can happen. Romy’s Journey Romy was diagnosed at seven years old with chronic neuro-Lyme ... Read More

Visual Processing Disorder Books

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