21. Descriptions of cerebral achromatopsia 's effects on his psychological health and visual perception are especially striking. 22. Cerebral achromatopsia occurs after injury to the lingual or fusiform gyrus, the areas associated with hV4. 23. In still rarer cases, temporary ischemia of the associated ventral occipital cortex can result in transient achromatopsia . 24. An April paper reported that gene therapy addressed achromatopsia ( color blindness ) in dogs by targeting cone photoreceptors. 25. There is a positive correlation between the severity of mutations in these proteins and the completeness of the achromatopsia phenotype. 26. The number of reported cases of cerebral achromatopsia are relatively few compared with other forms of color-vision loss. 27. He was born with achromatopsia , an extreme form of colour blindness that results in his seeing only in grayscale. 28. Kentridge has also conducted research into the neural bases of colour vision through the study of patients with cerebral achromatopsia . 29. The 9-year-old fourth-grader from Randolph Twp . has achromatopsia , a rare genetic eye disorder. 30. A person with dyschromatopsia, or incomplete achromtopsia, has similar symptoms to complete achromatopsia , but to a lesser degree.
