Visual scanning after stroke

Simple strategies to re-train the eye and attention after stroke affects vision or spatial awareness - practical, do-it-at-home techniques.

After stroke, many people find that one side of the world seems to disappear - not because the eyes are damaged, but because the brain’s attention system has been disrupted. This is called visual neglect or hemineglect. Others have a true visual-field loss (hemianopia) where the eye-to-brain pathway is cut. Both respond to retraining.

Is it neglect or visual-field loss?

Feature	Visual neglect	Hemianopia
Cause	Parietal lobe attention network	Occipital lobe / visual pathway
Eye examination	Eyes are normal	Field test shows a clear cut-off
Spontaneous scanning	Person doesn’t try to look left	Person tries but cannot see into the blind field
Awareness	Often unaware of the problem	Usually aware of the gap
Key rehab	Scanning training, cueing, prism glasses	Scanning compensation, optical aids

Core scanning strategies

Anchor sweeping Place a bright coloured sticker or sticky note at the left edge of whatever you’re looking at - a book, a plate, a doorway. Actively find the anchor before reading or reaching. This trains the habit of moving attention deliberately to the neglected side.

Head-turning routine Before any task - sitting down at a table, opening the fridge, crossing a room - make a deliberate full head turn to the neglected side. Make it a ritual, not an afterthought.

Scanning paths For reading, run a finger under each line and sweep fully from left edge to right. For a plate of food, mentally divide it into quadrants and work through each.

Pacing and slowing Speed amplifies neglect. Slowing down gives the attention system more time to update. This is especially important in new environments.

Practical adaptations at home

Place frequently used items (phone, remote control, water glass) consistently on the stronger side first - then gradually move them to the neglected side as scanning improves.
Use contrasting colours on cupboard handles, light switches, and doorframes on the neglected side to prompt attention.
Ask family to approach and speak from the neglected side (gently, consistently) to provide social cueing.
Reduce clutter - a busy visual environment makes scanning harder.

Prism glasses

Prism adaptation therapy involves wearing glasses with a lens that shifts the visual field temporarily. After repeated pointing and reaching tasks, the brain recalibrates

and the benefit can outlast the glasses, sometimes by months. Ask your occupational therapist or neurologist about referral.

When it improves - and patience

Neglect often improves most quickly in the first weeks and months after stroke. Visual field loss improves less spontaneously but scanning compensation can significantly reduce its real-world impact. Consistent daily practice matters more than any single session - small, repeated moments of deliberate scanning build the habit.