By 4 months, your baby’s range of vision has increased to several meters or more, and it will continue to expand until, at about seven months, her eyesight will be more nearly mature. She’ll also learn to follow faster movements with her eyes. For e.g. when you roll a ball, she'll be able to follow the movements of the ball. Babies can see colour from birth, but they have difficulty distinguishing similar tones, such as red and orange. They can tell the difference between very different colours such as red, green, and yellow. As a result, younger babies often prefer black and white or high-contrast patterns. At your baby's age, color differences become clearer, and your baby has started to distinguish between similar shades. https://www.healthychildren.org/English/ages-stages/baby/Pages/Your-Babys-Vision-4-to-7-Months.aspx
It is not until around the fifth month that the eyes are capable of working together to form a three-dimensional view of the world and begin to see in depth. Although an infant's color vision is not as sensitive as an adult's, it is generally believed that babies have good color vision by five months of age.
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At this stage, your baby can focus on things as far as 15 feet away. After 5 months your baby can also follow moving objects, and have a better color vision.
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