BIOCHEMISTRY OF VISION IN INFANTS

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BIOCHEMISTRY OF VISION IN INFANTS

INTRODUCTION

The first half of the essay will discuss biochemistry of infant vision such as visual acuity, contrast sensitivity and motion perception. Visual acuity is defined as the clarity of vision and is dependent on optical and neural factors. Examples of these factors are the ability of the retina to focus and form a sharp image. The health and performance of the retina. And, how the brain interprets the visual signals to an image. The contrast sensitivity function (CSF), demonstrates the visual framework’s sensitivity to sinusoidal gratings of different spatial frequencies in adults and infants (Kellman and Arterberry, 2006a). The manner in which it is resolved is by finding the most reduced contrast expected to see light/dull grinding of shifted fineness or spatial frequency. Motion perception will be broken down to directional sensitivity, velocity sensitivity and perception of motion. The second portion of the essay will evaluate the reasons to the changes in infant vision and the amount of influence these changes have on acuity and perception in a healthy infant. It essential for researchers to carry out investigations on infant vision as there has to be a basic idea on what is ‘normal’. This allows a comparison to be made when they eventually get their eyes checked for any vision problems

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