Of the 20 ASD individuals examined, 6 (30%) showed color vision losses. Elevated color discrimination thresholds were found in 3/9 participants with autism and in 3/11 AS participants.
Dark eyes (black, brown, hazel) were over-represented in the ASD sample, and there were significantly fewer blue and green eyed persons with autism compared to the national population.
The most common eye movement disorder in people with ASD is strabismus, a condition that causes the eyes to point in different directions. The eye turns can happen all the time, or only intermittently, for instance when a person is tired.
Seeing sounds and letters as colors may contribute to the condition. People with autism experience a more extreme version of the world than the rest of us. For more than 90%, sounds are louder, colors are brighter, and touch can be a disturbing intrusion.
Some conditions that can cause color deficits are sickle cell anemia, diabetes, macular degeneration, Alzheimer's disease, multiple sclerosis, glaucoma, Parkinson's disease, chronic alcoholism and leukemia.
Thanks to chromosomal differences between men and women, color blind women are much fewer and farther between than color blind men. Men are much more likely to be colorblind than women because the genes responsible for the most common, inherited color blindness are on the X chromosome.
Light pastel pink has often been chosen as the favorite colour for children with autism in some tests conducted. Cool colors such as blue and green also have a soothing effect. It is recommended that primary and bright colours be used only for toys or play objects in their rooms.
Both pastel pinks and lilacs can positively affect autistic users, with both colours creating the feeling of safety and love. The pastel tones evoke a peaceful feeling, which can sometimes cause someone with autism to adopt a tranquil state.
Although other studies have presented evidence for a preference for blue in newborns (Teller et al., 2005; Zemach et al., 2007), there is certainly a general consensus that TD children have a preference for primary colors (such as red and blue) rather than secondary colors (such as pink and orange).
In the first study of its type, scientists discovered that recordings from the retina could distinguish between different signals for Attention Deficit Hyperactivity Disorder (ADHD) and Autism Spectrum Disorder (ASD), offering a possible biomarker for each disorder.
Eye tracking as a biomarker:
Eye tracking is especially useful for autism research because it can be used on young infants and children. This might allow researchers to develop biomarkers to diagnose autism at a young age, when early interventions are the most beneficial.
People with autism sometimes may have physical symptoms, including digestive problems such as constipation and sleep problems. Children may have poor coordination of the large muscles used for running and climbing, or the smaller muscles of the hand. About a third of people with autism also have seizures.
It is possible to be mildly autistic, but many of the behaviors and preferences found in people with autism are also common to people who do not have autism. The difference is that people with autism engage in these behaviors in different ways and for different reasons.
Greens, blues, pinks, soft oranges and neutrals can be very comforting. Keeping the colors muted, these tones can quiet the mind and create calm.
Sensory issues with food: Kids on the autism spectrum often express a strong preference for foods that feel a certain way in their mouths. Some prefer soft or creamy foods like yogurt, soup or ice cream; others need the stimulation that crunchy foods like Cheetos or — if a parent is lucky, carrots — provide.
Autistic people tend to use a rainbow infinity symbol, as connected to the neurodiversity perspective.
As a result, a lot of people in the autism community refrain from using blue for awareness/acceptance month, as they don't want to be associated with Autism Speaks, or be perceived as supporting what they stand for.
Butterfly. The butterfly symbol is one that signifies change and represents the diversity of people on the autism spectrum. It also symbolizes the full lives of the autistic community, and the beauty of the differences of autistic people.
Blue “Forget-me-not” flower to raise awareness for the needs of people with autism.
Colour blindness is one of the world's most common genetic (inherited) conditions, which means it is usually passed down from your parents. Red/green colour blindness is passed from mother to son on the 23rd chromosome, which is known as the sex chromosome because it also determines your sex.
The life expectancy of a color-blind person is normal. There are no other abnormalities associated with the condition.