Utopia 4 - Research 2

Colour vision impairment is a genetic defect causing varying degrees of functional impairment of the cone cells, which are shifted in their wavelength recognition range.

Colour vision deficiency is divided into congenital colour vision illness and acquired colour vision illness.

congenital colour vision illnesses

include colour blindness, colour vision deficiency, occult

colour blindness and colour fatigue.

Congenital colour vision disorder is a congenital, inherited disorder that is genetically linked to recessive inheritance.

symptom characteristics

Colour vision deficiency is further divided into red colour vision deficiency, green colour vision illness, blue-yellow colour vision deficiency and total colour vision illness.

Among the types of colour vision deficiency, red-green colour blindness is the most prevalent.

acquired colour vision illness

1. Physical: mainly caused by some eye diseases, e.g. brownish-yellow changes in the lens in the elderly, often with a self-conscious yellow vision.

2. Psychological: colour hallucinations that are manifested by mental disorders.

3、Abnormalities of colour receptors: damage to the visual pathway from the retina to the cerebral cortex can cause acquired colour vision disorders.

Colour vision disorders are divided into congenital colour vision disorders and acquired colour vision disorders.

a. Congenital colour vision disorders include: colour blindness, colour weakness, occult colour blindness and colour fatigue

Congenital colour vision disorder is a congenital, hereditary disorder that is inherited as a recessive gene chain.b. Acquired colour vision disorders can be divided into three categories.

1. Physical: mainly caused by some eye diseases, e.g. brownish-yellow changes in the lens in the elderly, often with self-conscious yellow vision.

2. Psychological: colour hallucinations caused by mental disorders.

3. Abnormalities of colour receptors: damage to the visual pathway from the retina to the cerebral cortex can cause acquired colour vision disorders.