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Infant vision concerns the development of visual ability in human infants from birth through the first years of life. The aspects of human vision which develop following birth include visual acuity, tracking, color perception, depth perception, and object recognition .
Leber's congenital amaurosis (LCA) is a collection of inherited, degenerative eye disorders that can reduce the strength of visual clarity or sharpness in infants and can cause childhood blindness. [ 14 ] [ 15 ] These eye disorders are mostly autosomal recessive diseases, and diagnoses of LCA are linked to multiple gene variants, including the ...
Physical development refers to the development of movement, the brain and all other relevant stages of development that contributes to locomotion. [7] In early childhood, children develop the ability to gradually control movement, achieve balance and coordination and fine and gross motor skills. [ 8 ]
This is different from visual acuity, which refers to how clearly a person sees (for example "20/20 vision"). A person can have problems with visual perceptual processing even if they have 20/20 vision. The resulting perception is also known as vision, sight, or eyesight (adjectives visual, optical, and ocular, respectively).
Several layers such as the neural tube, neural crest, surface ectoderm, and mesoderm contribute to the development of the eye. [2] [3] [4] Eye development is initiated by the master control gene PAX6, a homeobox gene with known homologues in humans (aniridia), mice (small eye), and Drosophila (eyeless). The PAX6 gene locus is a transcription ...
Cohen et al. (1997) suggested that early blindness causes a poor development of the visual cortex with the result of a decrease in somatosensory development. This study proposed that Michael's long-term blindness affects his ability to distinguish in between faces of males and females, and to recognize pictures and images.
Cognitive, socio-emotional and physical development during early childhood is crucial to the child's ability to achieve their potential, and to the social and economic health of society as a whole. However, poverty, stunting and lack of intellectual stimulus in low- and middle-income countries damage early development of almost half of all ...
He determined that growth is best measured not quantitatively but in patterns. A pattern can be anything that has a definite shape or form [10] such as an eye blink. Gesell looked for patterns in the process by which actions become organized; for example, the steps in the development of eye-hand coordination. [10]