Primative Reflexes & Vision Development

What Are Primitive Reflexes?

Primitive reflexes are automatic movement patterns controlled by the brainstem, present from before birth to aid survival—think of reflexes like rooting, grasping, or the Moro startle reflex. Normally, these reflexes integrate (fade away) during the first months of life, making way for voluntary, higher-level movements and coordination.

Why They Matter for Vision?

When primitive reflexes persist beyond infancy—known as retained reflexes—they can interfere with the development of a child’s visual and motor systems. Vision isn’t just about seeing clearly; it relies on smooth eye movement, coordination, tracking, and integration with balance and movement.

Retained reflexes like the ATNR (Asymmetrical Tonic Neck Reflex) or STNR (Symmetrical Tonic Neck Reflex) actively disturb eye alignment, posture, and visual tracking. For example, turning the head (ATNR) can trigger involuntary arm movements that disrupt posture and make copying from the board challenging. These reflections pull energy away from visual processing, affecting tasks like reading, writing, and sustained attention.

Impact on Daily Life & Development

Learning & Academics: Retained reflexes are linked to difficulties with reading, spelling, academic fluency, and handwriting.
Attention & Behavior: These reflexes can manifest as distractibility, poor concentration, sensory sensitivities, or fidgety behavior—often misinterpreted as ADHD or learning avoidance.
Motor Coordination & Posture: Children may struggle with balance, midline crossing, handwriting, sports, or playing, stemming in part from under-integrated reflexes affecting visual-motor coordination.
Sensory Processing: Persistent reflexes contribute to sensory oddities—like discomfort with textures or tags—and general over- or under-responsiveness to sensory input.

Integration Through Vision Therapy

Vision therapists and developmental optometrists use targeted movement-based exercises to help the brain integrate retained reflexes—building up balance, coordination, and connecting visual input with voluntary motor control.

As reflexes integrate, children often experience improvements in:

Smooth tracking, eye teaming, and focusing
Reading fluency and comprehension
Handwriting legibility and academic endurance
Attention, confidence, and behavior regulation

Why This Matters to You (Or Your Child)

Even if standard eye exams show healthy eyes and 20/20 eyesight, retained primitive reflexes can silently hold back academic performance, motor coordination, sensory regulation, and self-confidence. At Inland Vision Therapy, our holistic assessments look beneath the surface to ensure your child develops vision that truly supports learning, movement, and life.

Common Primitive Reflexes

Moro Reflex (Startle Reflex): Triggered by sudden movement or noise; linked to stress, anxiety, and poor emotional regulation if retained.
ATNR (Asymmetrical Tonic Neck Reflex): Head turning causes arm/leg extension on one side; can affect handwriting, posture, and copying from the board.
STNR (Symmetrical Tonic Neck Reflex): Head up/down movement triggers arm/leg responses; affects posture, reading, and sitting still.
TLR (Tonic Labyrinthine Reflex): Head position relative to gravity affects muscle tone; impacts balance, coordination, and spatial orientation.
Palmar Reflex: Automatic hand grasp; can interfere with fine motor skills, pencil grip, and handwriting if retained.
Rooting Reflex: Turning of the head with mouth opening when cheek is touched; persistence can affect speech and eating.
Spinal Galant Reflex: Stroking lower back triggers hip movement; linked to fidgeting, bedwetting, and poor sitting tolerance.

Vision Therapy Can Help!

Targeted movement-based therapy integrates reflexes, improving visual-motor skills, reading, attention, and confidence. Contact us today for a free visual screener to see how we can help!