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People with hyperthymesia also have difficulties letting go of difficult events or traumatic memories, which can stay with them for life. Joey DeGrandis, who was featured in the magazine Time said, "I do tend to dwell on things longer than the average person, and when something painful does happen, like a break-up or the loss of a family member ...
A tragic photo of a baby born with only one eye and no nose has been circulating the Internet. The baby is being referred to as "baby cyclops" due to the comparisons drawn with the mythical cyclops.
BCM results from mutations in a single red or red–green hybrid opsin gene, mutations in both the red and the green opsin genes or deletions within the adjacent LCR (locus control region) on the X chromosome. [3] Green cone monochromacy (GCM), also known as M-cone monochromacy, is a condition where the blue and red cones are absent in the ...
People that are pregnant from families with a history of congenital blindness will be closely monitored and need to carry out genetic testing in order to identify whether there is a mutation or not. Red reflex testing is done in neonates, infants, and children to assess eye and vision function. [ 26 ]
Achromatopsia, also known as rod monochromacy, is a medical syndrome that exhibits symptoms relating to five conditions, most notably monochromacy.Historically, the name referred to monochromacy in general, but now typically refers only to an autosomal recessive congenital color vision condition.
The four pigments in a bird's cone cells (in this example, estrildid finches) extend the range of color vision into the ultraviolet. [1]Tetrachromacy (from Greek tetra, meaning "four" and chroma, meaning "color") is the condition of possessing four independent channels for conveying color information, or possessing four types of cone cell in the eye.
Michael G. "Mike" May (born 1954) was blinded by a chemical explosion at the age of 3 but regained partial vision in 2000, at 46, after corneal transplantation and a pioneering stem cell procedure by San Francisco ophthalmologist Daniel Goodman. [12] May had a stem-cell transplant in his right eye in 2001 when he was 47, after 40 years of ...
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